Student ID;Student Country;Question ID;Type of Answer;Question Level;Topic;Subtopic;Keywords 473;Portugal;346;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 351;Portugal;796;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 967;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1557;Portugal;87;0;Advanced;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 394;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 509;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 884;Italy;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 955;Lithuania;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1126;Portugal;288;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 69;Portugal;551;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality 955;Lithuania;424;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 411;Portugal;82;0;Basic;Differentiation;Derivatives;Logarithmic rule,Power rule,Exponential rule,Trigonometric rules,Product rule 1182;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1322;Italy;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1252;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 851;Italy;864;1;Basic;Optimization;Nonlinear Optimization;Lagrange multipliers,Optimal solution,Minimum,Maximum 1220;Slovenia;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1026;Lithuania;82;0;Basic;Differentiation;Derivatives;Logarithmic rule,Power rule,Exponential rule,Trigonometric rules,Product rule 414;Portugal;228;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 168;Portugal;732;0;Advanced;Integration;Integration Techniques;Trigonometric substitution 1220;Slovenia;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1533;Portugal;561;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 1220;Slovenia;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 982;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1350;Portugal;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 712;Portugal;181;0;Basic;Statistics;Statistics;Quantile,Frequency,Sample,Mean,Variance,Standard deviation,Median,Mode 473;Portugal;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 52;Portugal;463;0;Basic;Fundamental Mathematics;Elementary Geometry;Polyhedrons,Geometric solids,Classification of geometric solids 966;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1252;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 552;Portugal;837;1;Basic;Differential Equations;Differential Equations;Linear differential equation 576;Ireland;567;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a line,Orthogonality,Collinearity 956;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 163;Portugal;335;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 890;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 483;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 69;Portugal;568;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 509;Portugal;122;1;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 1029;Lithuania;264;0;Basic;Differentiation;Partial Differentiation;Chain rule 840;Italy;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 913;Ireland;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 956;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1288;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1505;Portugal;743;0;Basic;Optimization;Linear Optimization;Duality theory,Linear programming 1220;Slovenia;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 890;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 1011;Portugal;271;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 1299;Italy;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 175;Italy;95;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule,Exponential rule 1220;Slovenia;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 913;Ireland;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 36;Portugal;142;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 979;Portugal;1252;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 717;Portugal;204;0;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 64;Portugal;560;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 955;Lithuania;1115;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 840;Italy;278;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 626;Italy;920;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 91;Lithuania;462;1;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 1219;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 57;Portugal;204;1;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 1087;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1509;Portugal;922;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1047;Lithuania;261;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 1219;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1081;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 168;Portugal;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 634;Italy;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 175;Italy;1061;0;Basic;Complex Numbers;Complex Numbers;Complex plane 986;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 625;Russian Federation;462;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 876;Italy;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1080;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1171;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 913;Ireland;1105;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 876;Italy;448;1;Advanced;Linear Algebra;Vector Spaces;Subspace 451;Portugal;305;0;Basic;Probability ;Probability ;Event,Axioms of probability,Addition, multiplication, and total probability rules,Sample space 1220;Slovenia;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 591;Portugal;556;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line,Collinearity 551;Lithuania;359;1;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 697;Portugal;190;1;Basic;Statistics;Statistics;Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance,Median 657;Ireland;201;0;Basic;Statistics;Statistics;Chi square distribution,Student distribution,Quantile,Hypothesis testing 1220;Slovenia;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 81;Lithuania;464;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometrical figures 1420;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 851;Italy;821;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum,Second derivative test,Stationary point,Unconstrained optimization,Saddle point 700;Portugal;177;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1322;Italy;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 155;Spain;888;1;Basic;Differential Equations;Differential Equations;Linear differential equation 576;Ireland;695;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product 840;Italy;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1220;Slovenia;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1292;Italy;595;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Eigenvalue 1322;Italy;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 67;Portugal;179;1;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1286;Italy;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 633;Italy;126;0;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Solve matrix equation 988;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1322;Italy;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1331;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 64;Portugal;559;0;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 1023;Lithuania;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 890;Portugal;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 91;Lithuania;451;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 351;Portugal;84;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Indeterminate forms,Limits 598;Italy;223;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 986;Portugal;439;1;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 1363;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 473;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1517;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 41;Portugal;183;1;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 1299;Italy;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1146;Portugal;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 359;Portugal;352;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 988;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1122;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1339;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1044;Lithuania;268;0;Basic;Differentiation;Partial Differentiation;First order,Second order 1324;Italy;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1284;Italy;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 37;Portugal;399;1;Basic;Integration;Integration Techniques;Substitution,Direct inspection,Simple integration 1220;Slovenia;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 535;Portugal;333;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1481;Portugal;734;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Exponential rule 1083;Portugal;385;1;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 986;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 1286;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1561;Portugal;732;0;Advanced;Integration;Integration Techniques;Trigonometric substitution 28;Portugal;700;1;Basic;Analytic Geometry;Analytic Geometry;Collinearity,Locus,Orthogonality,Orthogonal projection,Scalar product,Distance 1023;Lithuania;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1220;Slovenia;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1049;Lithuania;100;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Power rule 1256;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 884;Italy;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 359;Portugal;359;0;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 378;Portugal;558;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 1312;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 426;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 91;Lithuania;432;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 1220;Slovenia;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1525;Portugal;751;0;Advanced;Optimization;Linear Optimization;Sensitivity analysis,Postoptimality analysis,Duality theory,Excel solver add-in,Simplex method,Linear programming 311;Ireland;134;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 1081;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1147;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 899;Lithuania;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 985;Romania;100;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Power rule 1023;Lithuania;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 71;Portugal;353;1;Basic;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 80;Lithuania;744;0;Basic;Optimization;Linear Optimization;Excel solver add-in,Simplex method,Linear programming 168;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 525;Portugal;494;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 473;Portugal;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1147;Portugal;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1248;Italy;91;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 898;Portugal;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 483;Portugal;275;1;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 723;Portugal;184;1;Basic;Statistics;Statistics;Frequency,Sample,Stem and Leaf diagram,Variance,Standard deviation,Relative frequency 394;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 625;Russian Federation;514;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 1269;Portugal;432;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 411;Portugal;406;0;Basic;Integration;Integration Techniques;Direct inspection 1080;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1333;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1077;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 972;Portugal;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1143;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1252;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1543;Portugal;1100;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 576;Ireland;575;1;Advanced;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Cross product,Scalar product 689;Portugal;858;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum,Stationary point,Saddle point 1220;Slovenia;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 548;Portugal;298;0;Basic;Probability ;Probability ;Event,Axioms of probability 81;Lithuania;468;1;Basic;Graph Theory;Graph Theory;Simple graph 1087;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1542;Portugal;1111;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1147;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 576;Ireland;574;0;Advanced;Analytic Geometry;Analytic Geometry;Collinearity,Orthogonality,Distance,Scalar product 1070;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 380;Portugal;357;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 178;Italy;753;0;Basic;Differentiation;Derivatives;Exponential rule 1220;Slovenia;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 166;Portugal;141;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 625;Russian Federation;507;0;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry 853;Italy;219;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1542;Portugal;309;1;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 853;Italy;216;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 1230;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 675;Portugal;188;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 1011;Portugal;877;0;Basic;Differentiation;Partial Differentiation;Second order 1220;Slovenia;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 80;Lithuania;285;1;Basic;Optimization;Linear Optimization;Linear programming 840;Italy;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 67;Portugal;187;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 1220;Slovenia;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 177;Italy;734;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Exponential rule 510;Portugal;789;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1286;Italy;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 376;Portugal;345;1;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 37;Portugal;723;1;Basic;Integration;Integration Techniques;Substitution 175;Italy;1106;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 176;Italy;118;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 426;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1252;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 422;Portugal;650;0;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 898;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1269;Portugal;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 406;Portugal;916;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Square linear system,Consistent system 576;Ireland;562;0;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 1194;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 884;Italy;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 91;Lithuania;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1564;Portugal;413;0;Basic;Integration;Integration Techniques;Direct inspection 1427;Portugal;306;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 955;Lithuania;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 455;Portugal;850;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 753;Italy;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 972;Portugal;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 1517;Portugal;625;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 1518;Portugal;489;0;Basic;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 468;Portugal;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1197;Slovenia;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 986;Portugal;430;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 37;Portugal;876;1;Basic;Differentiation;Partial Differentiation;Directional derivative,Gradient,First order,Second order 525;Portugal;112;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1271;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1196;Slovenia;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 624;Portugal;112;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 979;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 840;Italy;783;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 509;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 28;Portugal;360;0;Basic;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 1321;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1024;Lithuania;874;0;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule 1481;Portugal;686;1;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 633;Italy;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 1080;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 351;Portugal;753;1;Basic;Differentiation;Derivatives;Exponential rule 884;Italy;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 966;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1252;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 840;Italy;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1192;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1557;Portugal;928;0;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 37;Portugal;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 26;Portugal;564;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonality 71;Portugal;142;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 967;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 898;Portugal;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1044;Lithuania;874;0;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule 1080;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 633;Italy;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 28;Portugal;554;0;Basic;Analytic Geometry;Analytic Geometry;Scalar product,Orthogonality,Orthogonal projection,Distance 552;Portugal;146;0;Basic;Differential Equations;Differential Equations;Separable variables equation 633;Italy;446;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 344;Portugal;735;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 876;Italy;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1322;Italy;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 511;Portugal;796;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 551;Lithuania;569;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance,Scalar product,Cross product,Orthogonality,Collinearity 918;Portugal;1002;0;Basic;Differentiation;Partial Differentiation;First order 885;Italy;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 61;Portugal;164;1;Basic;Differential Equations;Differential Equations;Separable variables equation 986;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 884;Italy;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1173;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 890;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 855;Italy;221;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1023;Lithuania;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 168;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 219;Lithuania;667;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 168;Portugal;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1023;Lithuania;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 415;Portugal;131;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 890;Portugal;427;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1339;Portugal;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1427;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;455;0;Basic;Linear Algebra;Vector Spaces;Basis 986;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 986;Portugal;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 64;Portugal;796;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 426;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 28;Portugal;189;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 457;Portugal;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 411;Portugal;617;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Spectrum,Eigenvector,Characteristic polynomial 851;Italy;1014;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 1220;Slovenia;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1286;Italy;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1557;Portugal;676;1;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 411;Portugal;360;1;Basic;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 599;Italy;618;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Spectrum,Eigenvector,Characteristic polynomial 1363;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1322;Italy;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1281;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1158;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 986;Portugal;451;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 899;Lithuania;424;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 524;Portugal;788;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 466;Portugal;359;1;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 675;Portugal;77;1;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 91;Lithuania;460;1;Basic;Fundamental Mathematics;Elementary Geometry;Polyhedrons,Platonic solids,Geometric solids 71;Portugal;630;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue 1220;Slovenia;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 28;Portugal;353;0;Basic;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 511;Portugal;122;1;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 955;Lithuania;448;0;Advanced;Linear Algebra;Vector Spaces;Subspace 394;Portugal;380;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 200;Lithuania;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1351;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 552;Portugal;702;0;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Intersection,Cartesian equations of a line 411;Portugal;136;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 551;Lithuania;336;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Modulus of a complex number,Imaginary part 840;Italy;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 426;Portugal;333;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1171;Portugal;859;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Second derivative test,Minimum,Maximum,Stationary point,Saddle point 1299;Italy;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1056;Lithuania;876;0;Basic;Differentiation;Partial Differentiation;Directional derivative,Gradient,First order,Second order 712;Portugal;202;0;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 966;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 72;Portugal;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1220;Slovenia;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 167;Portugal;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 131;Lithuania;121;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 551;Lithuania;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1289;Italy;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1192;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 91;Lithuania;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1219;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1322;Italy;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 637;Italy;202;0;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 91;Lithuania;515;1;Advanced;Fundamental Mathematics;Elementary Geometry;Geometrical figures,Quadrilaterals,Rhombus 168;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1147;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 535;Portugal;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 1220;Slovenia;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1109;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1286;Italy;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 411;Portugal;311;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 898;Portugal;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 511;Portugal;244;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 751;Lithuania;700;1;Basic;Analytic Geometry;Analytic Geometry;Collinearity,Locus,Orthogonality,Orthogonal projection,Scalar product,Distance 1023;Lithuania;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1557;Portugal;677;0;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 1079;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 239;Lithuania;878;1;Basic;Differentiation;Partial Differentiation;Second order,First order 972;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 90;Lithuania;329;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1286;Italy;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 972;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 71;Portugal;331;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 986;Portugal;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1538;Portugal;1116;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1252;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 473;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 955;Lithuania;1102;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 972;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 1077;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 955;Lithuania;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 898;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1158;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 41;Portugal;360;1;Basic;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 411;Portugal;141;0;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 41;Portugal;182;0;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 128;Lithuania;337;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 1273;Portugal;439;0;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 176;Italy;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 393;Lithuania;349;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 913;Ireland;224;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 675;Portugal;193;1;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 1487;Portugal;476;1;Basic;Graph Theory;Graph Theory;Adjacency matrix 177;Italy;614;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1146;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1179;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 349;Portugal;147;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 986;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1146;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 349;Portugal;144;1;Basic;Differentiation;Derivatives;Trigonometric rules 1284;Italy;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1219;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1487;Portugal;1174;1;Basic;Integration;Definite Integrals; Integration by parts,Fundamental theorem of Calculus 1080;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1023;Lithuania;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 168;Portugal;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 974;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 91;Lithuania;337;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 854;Italy;952;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1244;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1252;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 311;Ireland;131;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 411;Portugal;337;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 955;Lithuania;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1322;Italy;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 918;Portugal;722;0;Basic;Integration;Integration Techniques;Integration by parts 1146;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 91;Lithuania;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 884;Italy;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 37;Portugal;275;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 1220;Slovenia;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 90;Lithuania;327;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 168;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1023;Lithuania;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 840;Italy;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1095;Portugal;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 81;Lithuania;472;0;Advanced;Graph Theory;Graph Theory;Simple graph 576;Ireland;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 37;Portugal;1080;0;Basic;Differentiation;Partial Differentiation;First order 876;Italy;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1220;Slovenia;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 26;Portugal;892;0;Basic;Differential Equations;Differential Equations;Linear differential equation 1147;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 979;Portugal;1215;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 1126;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1274;Portugal;795;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 174;Portugal;753;0;Basic;Differentiation;Derivatives;Exponential rule 913;Ireland;1160;1;Basic;Set Theory;Set Theory;Subset 1179;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1292;Italy;619;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Spectrum,Characteristic polynomial 1308;Italy;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1288;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 420;Portugal;643;0;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 1220;Slovenia;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1542;Portugal;1097;1;Basic;Numerical Methods;Numerical Methods;Lagrange's interpolation,Polynomial interpolation 695;Portugal;185;0;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 91;Lithuania;329;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1220;Slovenia;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 168;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1288;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 633;Italy;427;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 41;Portugal;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 72;Portugal;289;0;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1543;Portugal;1086;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 426;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1220;Slovenia;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1135;Portugal;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 984;Romania;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1269;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 91;Lithuania;494;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 175;Italy;339;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 1043;Lithuania;262;0;Basic;Differentiation;Partial Differentiation;First order 1564;Portugal;682;0;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 26;Portugal;571;0;Basic;Analytic Geometry;Analytic Geometry;Intersection,Cartesian equations of a plane 1427;Portugal;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1081;Portugal;441;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span 28;Portugal;565;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonal projection,Orthogonality,Collinearity,Locus 1543;Portugal;1100;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 913;Ireland;771;0;Basic;Probability ;Probability ;Event,Sample space,Addition, multiplication, and total probability rules,Axioms of probability 1220;Slovenia;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1352;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 72;Portugal;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 625;Russian Federation;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 168;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 168;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 509;Portugal;604;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector,Spectrum,Characteristic polynomial 466;Portugal;333;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 81;Lithuania;471;1;Advanced;Graph Theory;Graph Theory;Simple graph 876;Italy;278;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1288;Portugal;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 750;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1023;Lithuania;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 176;Italy;730;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1557;Portugal;890;1;Basic;Differential Equations;Differential Equations;Linear differential equation 986;Portugal;380;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 380;Portugal;1246;1;Basic;Optimization;Nonlinear Optimization;Unconstrained optimization,Second derivative test,Optimal solution 1274;Portugal;788;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 599;Italy;619;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Spectrum,Characteristic polynomial 643;Italy;178;1;Basic;Statistics;Statistics;Mean,Variance,Standard deviation,Median,Mode 91;Lithuania;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 551;Lithuania;347;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 1220;Slovenia;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 168;Portugal;607;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector 634;Italy;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 969;Romania;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1220;Slovenia;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 985;Romania;730;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1032;Lithuania;262;0;Basic;Differentiation;Partial Differentiation;First order 725;Portugal;188;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 1220;Slovenia;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1077;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1517;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 41;Portugal;189;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 1146;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 351;Portugal;665;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1322;Italy;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 41;Portugal;336;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Modulus of a complex number,Imaginary part 1219;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 840;Italy;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 28;Portugal;564;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonality 750;Portugal;921;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 509;Portugal;848;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 576;Ireland;363;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 166;Portugal;138;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Determinant computation,Determinant properties,Inverse matrix 1273;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 974;Portugal;427;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1220;Slovenia;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1220;Slovenia;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 840;Italy;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1428;Portugal;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 26;Portugal;831;1;Basic;Differential Equations;Differential Equations;Linear differential equation 91;Lithuania;368;1;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids,Regular polygon 1324;Italy;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 91;Lithuania;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1079;Portugal;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 669;Portugal;77;1;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 966;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1284;Italy;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 175;Italy;1489;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Modulus of a complex number,Algebraic form,Real part,Equations involving complex numbers,Imaginary part 85;Lithuania;1150;0;Basic;Set Theory;Set Theory;Subset 26;Portugal;216;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 1077;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 155;Spain;165;0;Basic;Differential Equations;Differential Equations;Linear differential equation,Homogeneous equation 625;Russian Federation;666;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 468;Portugal;349;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 168;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 576;Ireland;560;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 1289;Italy;424;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 175;Italy;1087;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 1334;Portugal;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 380;Portugal;861;1;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 898;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 876;Italy;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 180;Italy;342;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 509;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 509;Portugal;952;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 176;Italy;143;0;Basic;Differentiation;Derivatives;Trigonometric rules,Logarithmic rule 421;Portugal;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 634;Italy;94;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 1352;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 913;Ireland;1153;1;Basic;Set Theory;Set Theory;Subset 1273;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 71;Portugal;104;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 674;Ireland;188;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 776;Portugal;556;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line,Collinearity 41;Portugal;160;1;Basic;Differential Equations;Differential Equations;Linear differential equation 840;Italy;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 700;Portugal;187;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 1182;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 167;Portugal;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1070;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 414;Portugal;244;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 91;Lithuania;516;1;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 37;Portugal;701;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product,Distance 411;Portugal;141;0;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 576;Ireland;574;1;Advanced;Analytic Geometry;Analytic Geometry;Collinearity,Orthogonality,Distance,Scalar product 1275;Lithuania;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 91;Lithuania;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 509;Portugal;495;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 955;Lithuania;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 750;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1146;Portugal;289;0;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 378;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1082;Portugal;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 57;Portugal;188;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 955;Lithuania;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1220;Slovenia;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 967;Portugal;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 176;Italy;274;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 969;Romania;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 200;Lithuania;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 155;Spain;172;1;Basic;Differential Equations;Differential Equations;Linear differential equation 91;Lithuania;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1130;Portugal;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 510;Portugal;221;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1220;Slovenia;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 168;Portugal;380;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1543;Portugal;1115;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1220;Slovenia;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 524;Portugal;367;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures 965;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 189;Portugal;145;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1291;Italy;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1220;Slovenia;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 955;Lithuania;1108;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 509;Portugal;949;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 885;Italy;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 511;Portugal;789;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 840;Italy;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 344;Portugal;787;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 71;Portugal;1220;1;Basic;Differentiation;Derivatives;Trigonometric rules,Power rule 1322;Italy;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1147;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1149;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1182;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1044;Lithuania;259;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 634;Italy;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 168;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 52;Portugal;503;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 81;Lithuania;473;1;Advanced;Graph Theory;Graph Theory;Simple graph 91;Lithuania;369;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Geometrical figures,Classification of geometrical figures 636;Italy;202;0;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 1564;Portugal;250;0;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Trigonometric rules 1252;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 853;Italy;244;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1271;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 470;Portugal;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 1132;Portugal;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 168;Portugal;292;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 81;Lithuania;566;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Orthogonality,Locus 37;Portugal;730;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 177;Italy;667;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1292;Italy;606;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector,Diagonalization 1350;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1220;Slovenia;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 168;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1509;Portugal;685;0;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 525;Portugal;793;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 1080;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 582;Lithuania;340;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers,Conjugate number 1517;Portugal;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1147;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1292;Italy;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 986;Portugal;419;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 152;Portugal;337;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 876;Italy;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1274;Portugal;793;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 483;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1219;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1220;Slovenia;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 91;Lithuania;393;1;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 1299;Italy;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 860;Italy;219;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1081;Portugal;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 240;Lithuania;918;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 26;Portugal;299;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 524;Portugal;458;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometric transformations,Geometrical figures 626;Italy;255;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Logarithmic rule 81;Lithuania;581;1;Basic;Graph Theory;Graph Theory;Tree,Spanning tree 720;Portugal;204;0;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 645;Italy;202;0;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 470;Portugal;340;1;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers,Conjugate number 1427;Portugal;306;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 403;Portugal;352;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 840;Italy;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 576;Ireland;572;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Scalar product,Cross product,Distance,Collinearity,Orthogonality 1319;Italy;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 394;Portugal;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 72;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1427;Portugal;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 28;Portugal;563;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 525;Portugal;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1305;Italy;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1037;Lithuania;260;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 414;Portugal;334;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 1525;Portugal;861;0;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 1220;Slovenia;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 174;Portugal;252;0;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Power rule,Trigonometric rules 1081;Portugal;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1283;Italy;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 966;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1286;Italy;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 80;Lithuania;339;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 81;Lithuania;929;1;Basic;Graph Theory;Graph Theory;Cycle and circuit,Shortest path,Path,Planar graph,Tree,Adjacency matrix,Chromatic number,Simple graph,Spanning tree,Incidence matrix 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 81;Lithuania;522;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Triangles 1023;Lithuania;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1375;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1023;Lithuania;454;1;Basic;Linear Algebra;Vector Spaces;Basis 958;Lithuania;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1444;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;514;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 576;Ireland;556;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line,Collinearity 626;Italy;735;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1517;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 80;Lithuania;564;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonality 69;Portugal;551;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality 1049;Lithuania;257;1;Basic;Differentiation;Partial Differentiation;Gradient,First order 851;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 634;Italy;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1173;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1087;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1087;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 349;Portugal;729;0;Basic;Differentiation;Derivatives;Quotient rule 1220;Slovenia;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 72;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1195;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1286;Italy;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 689;Portugal;960;0;Basic;Optimization;Nonlinear Optimization;Linear programming 853;Italy;89;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 966;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1284;Italy;455;1;Basic;Linear Algebra;Vector Spaces;Basis 393;Lithuania;333;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 866;Italy;233;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 1080;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 91;Lithuania;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 776;Portugal;574;1;Advanced;Analytic Geometry;Analytic Geometry;Collinearity,Orthogonality,Distance,Scalar product 1284;Italy;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 986;Portugal;382;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 374;Portugal;348;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Complex plane ,Real part 592;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1095;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 28;Portugal;326;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 1308;Italy;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 855;Italy;228;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 67;Portugal;495;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 509;Portugal;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1332;Portugal;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 1338;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1049;Lithuania;268;0;Basic;Differentiation;Partial Differentiation;First order,Second order 1023;Lithuania;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 524;Portugal;518;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 28;Portugal;572;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Scalar product,Cross product,Distance,Collinearity,Orthogonality 511;Portugal;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 969;Romania;448;1;Advanced;Linear Algebra;Vector Spaces;Subspace 979;Portugal;1099;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 351;Portugal;786;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 986;Portugal;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 955;Lithuania;1252;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 375;Portugal;348;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Complex plane ,Real part 524;Portugal;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 71;Portugal;1110;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 37;Portugal;300;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 80;Lithuania;137;1;Basic;Linear Algebra;Matrices and Determinants;Matrix equivalent - echelon,Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Linearly independent rows,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 1143;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1044;Lithuania;262;0;Basic;Differentiation;Partial Differentiation;First order 1243;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 700;Portugal;190;0;Basic;Statistics;Statistics;Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance,Median 36;Portugal;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 509;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 890;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 625;Russian Federation;795;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 955;Lithuania;1093;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 90;Lithuania;642;1;Basic;Linear Algebra;Matrices and Determinants;Symmetric matrix,Matrix multiplication,Matrix operations 599;Italy;854;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Diagonalization,Spectrum,Characteristic polynomial 1332;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 91;Lithuania;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1518;Portugal;642;1;Basic;Linear Algebra;Matrices and Determinants;Symmetric matrix,Matrix multiplication,Matrix operations 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 176;Italy;255;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Logarithmic rule 1288;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1427;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 626;Italy;717;0;Basic;Differentiation;Derivatives;Trigonometric rules,Quotient rule 1043;Lithuania;912;0;Basic;Differentiation;Partial Differentiation;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 1220;Slovenia;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 852;Italy;90;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1220;Slovenia;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1402;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1481;Portugal;685;0;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 239;Lithuania;269;1;Basic;Differentiation;Partial Differentiation;First order,Second order 972;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 750;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1308;Italy;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 483;Portugal;380;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1271;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 956;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 394;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 966;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 1143;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 854;Italy;230;1;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 979;Portugal;1103;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1220;Slovenia;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 972;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1557;Portugal;694;0;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 37;Portugal;1228;0;Basic;Differentiation;Partial Differentiation;First order,Second order 884;Italy;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1308;Italy;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 406;Portugal;92;1;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 986;Portugal;306;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 955;Lithuania;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 913;Ireland;761;0;Basic;Probability ;Probability ;Event,Sample space,Addition, multiplication, and total probability rules,Axioms of probability 71;Portugal;697;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Distance,Cross product 637;Italy;187;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 840;Italy;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1023;Lithuania;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 591;Portugal;334;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 91;Lithuania;121;1;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 967;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 979;Portugal;1103;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 176;Italy;665;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 591;Portugal;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1082;Portugal;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1220;Slovenia;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 851;Italy;1015;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 411;Portugal;89;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 509;Portugal;92;0;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 72;Portugal;288;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1149;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 660;Portugal;204;1;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 1044;Lithuania;876;0;Basic;Differentiation;Partial Differentiation;Directional derivative,Gradient,First order,Second order 1147;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 451;Portugal;314;1;Basic;Probability ;Probability ;Event,Sample space 1542;Portugal;1111;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1150;Portugal;289;0;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 168;Portugal;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 457;Portugal;337;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 470;Portugal;349;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 956;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 349;Portugal;274;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 1047;Lithuania;1001;0;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule 853;Italy;917;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 71;Portugal;793;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 91;Lithuania;524;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Rhombus 876;Italy;427;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 349;Portugal;735;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 510;Portugal;665;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 642;Italy;178;0;Basic;Statistics;Statistics;Mean,Variance,Standard deviation,Median,Mode 1322;Italy;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1220;Slovenia;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 168;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 175;Italy;1475;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Real part,Equations involving complex numbers,Imaginary part,Conjugate number,Modulus of a complex number 1283;Italy;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 851;Italy;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 626;Italy;918;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1517;Portugal;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 473;Portugal;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 72;Portugal;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 464;Portugal;356;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers 638;Italy;177;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 986;Portugal;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1486;Portugal;787;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 1220;Slovenia;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 840;Italy;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 422;Portugal;637;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 1311;Italy;306;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 168;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1557;Portugal;86;1;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Indeterminate forms,Limits 1122;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1273;Portugal;451;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 913;Ireland;1107;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1135;Portugal;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 409;Portugal;327;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1219;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 37;Portugal;887;1;Advanced;Differentiation;Partial Differentiation;First order 1173;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 426;Portugal;349;0;Advanced;Complex Numbers;Complex Numbers;Complex plane 625;Russian Federation;464;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometrical figures 1091;Lithuania;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1375;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 71;Portugal;720;1;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules,Logarithmic rule,Product rule 1256;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1157;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 966;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1252;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 81;Lithuania;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 168;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1252;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 890;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1557;Portugal;670;0;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 509;Portugal;512;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangles 208;Lithuania;137;0;Basic;Linear Algebra;Matrices and Determinants;Matrix equivalent - echelon,Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Linearly independent rows,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 80;Lithuania;331;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1353;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 684;Ireland;189;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 64;Portugal;557;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance 1334;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 128;Lithuania;326;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 1565;Portugal;413;0;Basic;Integration;Integration Techniques;Direct inspection 855;Italy;90;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1220;Slovenia;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1248;Italy;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 576;Ireland;699;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Locus,Intersection,Cartesian equations of a line 37;Portugal;156;0;Basic;Differential Equations;Differential Equations;Linear differential equation 1220;Slovenia;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1411;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1557;Portugal;918;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1505;Portugal;177;1;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 178;Italy;721;1;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules 378;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 451;Portugal;491;0;Advanced;Probability ;Probability ;Addition, multiplication, and total probability rules,Independence,Event 1044;Lithuania;1001;1;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule 1220;Slovenia;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1543;Portugal;1091;0;Basic;Numerical Methods;Numerical Methods;Nonlinear equation,Newton’s method 359;Portugal;496;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1079;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 57;Portugal;309;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 52;Portugal;635;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 988;Portugal;916;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Square linear system,Consistent system 1220;Slovenia;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1271;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 974;Portugal;1102;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 167;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 576;Ireland;239;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1220;Slovenia;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 91;Lithuania;519;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 81;Lithuania;935;1;Basic;Graph Theory;Graph Theory;Chromatic number 414;Portugal;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 411;Portugal;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 80;Lithuania;134;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 80;Lithuania;530;0;Basic;Integration;Double Integration;Iterate integrals,Area ,y-simple region (type I),Cartesian coordinates 510;Portugal;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 955;Lithuania;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 483;Portugal;349;0;Advanced;Complex Numbers;Complex Numbers;Complex plane 1252;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1481;Portugal;300;1;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 168;Portugal;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1150;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 851;Italy;1208;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 890;Portugal;420;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 852;Italy;229;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 972;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 37;Portugal;142;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 26;Portugal;890;1;Basic;Differential Equations;Differential Equations;Linear differential equation 1274;Portugal;112;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1049;Lithuania;658;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 1109;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 411;Portugal;714;0;Basic;Integration;Integration Techniques;Simple integration,Direct inspection 201;Lithuania;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 411;Portugal;138;0;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Determinant computation,Determinant properties,Inverse matrix 1273;Portugal;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 344;Portugal;100;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Power rule 840;Italy;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 955;Lithuania;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1543;Portugal;1095;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1150;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 679;Portugal;78;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 378;Portugal;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 175;Italy;98;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 411;Portugal;309;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 411;Portugal;275;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 168;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 37;Portugal;629;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue 986;Portugal;141;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 1286;Italy;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 1379;Portugal;108;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1319;Italy;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 751;Lithuania;566;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Orthogonality,Locus 1525;Portugal;761;0;Basic;Probability ;Probability ;Event,Sample space,Addition, multiplication, and total probability rules,Axioms of probability 406;Portugal;665;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 91;Lithuania;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 509;Portugal;616;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector 71;Portugal;641;0;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties,Hermitian matrix,Symmetric matrix,Matrix multiplication,Linearly independent rows,Matrix operations 1286;Italy;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 1173;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 176;Italy;730;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1292;Italy;604;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector,Spectrum,Characteristic polynomial 852;Italy;225;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 972;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 510;Portugal;463;1;Basic;Fundamental Mathematics;Elementary Geometry;Polyhedrons,Geometric solids,Classification of geometric solids 1256;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 552;Portugal;564;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonality 151;Portugal;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1352;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 899;Lithuania;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1171;Portugal;863;1;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 91;Lithuania;464;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometrical figures 380;Portugal;1007;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Stationary point,Maximum,Saddle point 582;Lithuania;574;1;Advanced;Analytic Geometry;Analytic Geometry;Collinearity,Orthogonality,Distance,Scalar product 898;Portugal;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 91;Lithuania;516;1;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 1517;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 511;Portugal;647;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations 776;Portugal;547;0;Basic;Analytic Geometry;Analytic Geometry;Cross product,Orthogonality,Scalar product 682;Portugal;193;1;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 466;Portugal;346;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 200;Lithuania;397;1;Basic;Integration;Integration Techniques;Substitution 657;Ireland;185;1;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 853;Italy;224;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1220;Slovenia;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1243;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 311;Ireland;125;1;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Symmetric matrix,Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication 71;Portugal;147;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 625;Russian Federation;113;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 524;Portugal;495;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1185;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1056;Lithuania;268;0;Basic;Differentiation;Partial Differentiation;First order,Second order 1135;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1023;Lithuania;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 913;Ireland;303;0;Basic;Probability ;Probability ;Addition, multiplication, and total probability rules,Sample space,Event,Axioms of probability 455;Portugal;496;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1322;Italy;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 713;Portugal;188;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 465;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 81;Lithuania;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 414;Portugal;221;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 175;Italy;1486;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 81;Lithuania;569;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance,Scalar product,Cross product,Orthogonality,Collinearity 1079;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1044;Lithuania;875;1;Basic;Differentiation;Partial Differentiation;Gradient,First order 955;Lithuania;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 634;Italy;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1011;Portugal;658;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 598;Italy;249;0;Advanced;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Square linear system,Consistent system,Inconsistent system 1350;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 175;Italy;1111;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 466;Portugal;355;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 1220;Slovenia;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 890;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 91;Lithuania;309;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 175;Italy;1213;1;Basic;Numerical Methods;Numerical Methods;Mean,Median,Outliers,Interquartile range 1552;Portugal;406;0;Basic;Integration;Integration Techniques;Direct inspection 1220;Slovenia;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1182;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1332;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1135;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 966;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 80;Lithuania;605;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Spectrum,Diagonalization,Characteristic polynomial 1220;Slovenia;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 955;Lithuania;1252;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1109;Portugal;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1023;Lithuania;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 378;Portugal;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 591;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 511;Portugal;458;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometric transformations,Geometrical figures 1505;Portugal;1003;0;Basic;Optimization;Linear Optimization;Linear programming 1220;Slovenia;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 625;Russian Federation;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 37;Portugal;393;1;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 966;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 197;Portugal;798;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1256;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1281;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 913;Ireland;80;1;Basic;Statistics;Statistics;Population,Variance,Median,Standard deviation,Mode,Quantile,Sample,Mean 202;Lithuania;668;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 690;Portugal;179;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1379;Portugal;104;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 890;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 168;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 876;Italy;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 956;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 972;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1288;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1148;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 81;Lithuania;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 884;Italy;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1146;Portugal;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 1279;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 411;Portugal;243;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 633;Italy;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 591;Portugal;337;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 913;Ireland;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1319;Italy;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1229;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 128;Lithuania;336;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Modulus of a complex number,Imaginary part 151;Portugal;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 668;Portugal;81;1;Basic;Statistics;Statistics;Mean,Median,Mode 168;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1557;Portugal;677;1;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 1350;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1543;Portugal;1100;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 675;Portugal;185;0;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 967;Portugal;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 972;Portugal;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 851;Italy;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 351;Portugal;679;0;Basic;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 376;Portugal;335;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 884;Italy;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 986;Portugal;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 69;Portugal;547;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Orthogonality,Scalar product 1140;Portugal;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 955;Lithuania;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 26;Portugal;906;0;Basic;Differential Equations;Differential Equations;Linear differential equation 731;Portugal;187;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 1279;Portugal;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 840;Italy;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 966;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 455;Portugal;647;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations 218;Lithuania;118;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1220;Slovenia;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 633;Italy;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 626;Italy;83;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 511;Portugal;215;1;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 1171;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 876;Italy;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 80;Lithuania;168;0;Basic;Differential Equations;Differential Equations;Linear differential equation 28;Portugal;699;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Locus,Intersection,Cartesian equations of a line 1244;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1517;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 660;Portugal;201;1;Basic;Statistics;Statistics;Chi square distribution,Student distribution,Quantile,Hypothesis testing 955;Lithuania;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1289;Italy;380;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 582;Lithuania;348;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Complex plane ,Real part 626;Italy;142;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 1331;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 899;Lithuania;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1045;Lithuania;1000;0;Basic;Differentiation;Partial Differentiation;First order 37;Portugal;882;0;Advanced;Differentiation;Partial Differentiation;Gradient,First order,Directional derivative 311;Ireland;125;0;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Symmetric matrix,Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication 178;Italy;250;0;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Trigonometric rules 189;Portugal;369;0;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Geometrical figures,Classification of geometrical figures 1288;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 80;Lithuania;916;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Square linear system,Consistent system 1219;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1023;Lithuania;455;1;Basic;Linear Algebra;Vector Spaces;Basis 156;Lithuania;114;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1087;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 714;Portugal;186;0;Basic;Statistics;Statistics;Population,Sample 1271;Portugal;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1281;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1557;Portugal;984;0;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 80;Lithuania;1020;1;Basic;Optimization;Linear Optimization;Linear programming,Assignment problem,Excel solver add-in,Simplex method 956;Portugal;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1256;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1319;Italy;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 956;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1271;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 511;Portugal;949;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1220;Slovenia;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 311;Ireland;138;0;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Determinant computation,Determinant properties,Inverse matrix 1290;Italy;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 576;Ireland;697;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Distance,Cross product 955;Lithuania;1086;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 552;Portugal;550;0;Advanced;Analytic Geometry;Analytic Geometry;Cross product,Orthogonality 41;Portugal;546;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonal projection,Distance,Cross product,Orthogonality 1244;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1288;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 198;Italy;497;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1220;Slovenia;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 979;Portugal;640;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 525;Portugal;520;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 380;Portugal;1010;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum 1011;Portugal;145;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 80;Lithuania;955;0;Basic;Optimization;Linear Optimization;Linear programming 393;Lithuania;333;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 311;Ireland;134;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 955;Lithuania;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 753;Italy;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 91;Lithuania;496;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 344;Portugal;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1299;Italy;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 168;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 840;Italy;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 840;Italy;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 69;Portugal;558;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 1308;Italy;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 726;Portugal;188;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 168;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 37;Portugal;555;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality,Locus,Distance 1049;Lithuania;97;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 175;Italy;1496;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 511;Portugal;613;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 634;Italy;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1087;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 972;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 955;Lithuania;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 57;Portugal;184;1;Basic;Statistics;Statistics;Frequency,Sample,Stem and Leaf diagram,Variance,Standard deviation,Relative frequency 1082;Portugal;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 853;Italy;949;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1173;Portugal;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 855;Italy;950;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 71;Portugal;614;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 890;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1087;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 884;Italy;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 885;Italy;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 175;Italy;327;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1291;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1282;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 376;Portugal;354;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 741;Ireland;933;0;Basic;Graph Theory;Graph Theory;Planar graph 359;Portugal;347;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 387;Portugal;449;1;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 1219;Portugal;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1277;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 852;Italy;241;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 956;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 378;Portugal;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 853;Italy;222;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 466;Portugal;333;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 913;Ireland;1151;1;Basic;Set Theory;Set Theory;Subset 483;Portugal;877;1;Basic;Differentiation;Partial Differentiation;Second order 1292;Italy;594;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Spectrum,Characteristic polynomial,Diagonalization,Eigenvalue 175;Italy;1485;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1220;Slovenia;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 378;Portugal;573;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Locus,Scalar product,Cross product,Collinearity 1292;Italy;608;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector 466;Portugal;345;0;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 414;Portugal;227;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 37;Portugal;911;0;Basic;Optimization;Nonlinear Optimization;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 1543;Portugal;1110;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 470;Portugal;346;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 128;Lithuania;337;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 1243;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 969;Romania;449;1;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 405;Portugal;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 509;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1219;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 899;Lithuania;446;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 955;Lithuania;1097;1;Basic;Numerical Methods;Numerical Methods;Lagrange's interpolation,Polynomial interpolation 899;Lithuania;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1044;Lithuania;873;1;Basic;Differentiation;Partial Differentiation;First order 1525;Portugal;281;0;Basic;Optimization;Linear Optimization;Linear programming 965;Portugal;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 466;Portugal;340;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers,Conjugate number 240;Lithuania;920;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 890;Portugal;430;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1247;Portugal;355;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 626;Italy;717;1;Basic;Differentiation;Derivatives;Trigonometric rules,Quotient rule 85;Lithuania;1147;1;Basic;Set Theory;Set Theory;Subset 1220;Slovenia;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1252;Portugal;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 955;Lithuania;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 913;Ireland;244;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 175;Italy;1089;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 576;Ireland;576;0;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 352;Portugal;657;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 1023;Lithuania;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 511;Portugal;524;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Rhombus 1518;Portugal;301;0;Basic;Probability ;Probability ;Sample space,Event 1517;Portugal;628;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue,Diagonalization 351;Portugal;145;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 394;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 411;Portugal;594;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Spectrum,Characteristic polynomial,Diagonalization,Eigenvalue 625;Russian Federation;793;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 913;Ireland;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1322;Italy;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 509;Portugal;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 955;Lithuania;1251;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 181;Italy;918;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 351;Portugal;101;0;Advanced;Differentiation;Derivatives;Trigonometric rules,Product rule,Logarithmic rule,Exponential rule 884;Italy;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 851;Italy;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1229;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 973;Portugal;950;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1340;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1518;Portugal;789;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 979;Portugal;1106;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 986;Portugal;90;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1148;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1029;Lithuania;998;0;Basic;Differentiation;Partial Differentiation;First order 426;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 1322;Italy;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 457;Portugal;347;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 1324;Italy;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 643;Italy;201;1;Basic;Statistics;Statistics;Chi square distribution,Student distribution,Quantile,Hypothesis testing 1220;Slovenia;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 988;Portugal;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 204;Lithuania;796;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 890;Portugal;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 426;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 204;Lithuania;108;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 898;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 525;Portugal;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1288;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1511;Portugal;551;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality 689;Portugal;821;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum,Second derivative test,Stationary point,Unconstrained optimization,Saddle point 525;Portugal;523;0;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures,Polygons 1093;Portugal;292;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 91;Lithuania;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 551;Lithuania;561;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 1219;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 840;Italy;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 660;Portugal;180;1;Basic;Statistics;Statistics;Mean,Median,Mode 198;Italy;368;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids,Regular polygon 986;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 899;Lithuania;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1311;Italy;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 411;Portugal;336;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Modulus of a complex number,Imaginary part 511;Portugal;513;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 664;Portugal;181;1;Basic;Statistics;Statistics;Quantile,Frequency,Sample,Mean,Variance,Standard deviation,Median,Mode 1444;Portugal;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 175;Italy;1102;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 41;Portugal;112;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 37;Portugal;860;0;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 1487;Portugal;1052;0;Basic;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Algebraic form,Operations with complex numbers,Real part,Equations involving complex numbers 80;Lithuania;215;1;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1334;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 473;Portugal;381;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 81;Lithuania;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1047;Lithuania;885;0;Basic;Differentiation;Partial Differentiation;Second order,First order 1087;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 988;Portugal;420;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1220;Slovenia;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1288;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 582;Lithuania;568;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 1023;Lithuania;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1274;Portugal;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 769;Portugal;339;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 394;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 1252;Portugal;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1322;Italy;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 91;Lithuania;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 552;Portugal;146;0;Basic;Differential Equations;Differential Equations;Separable variables equation 509;Portugal;228;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 36;Portugal;1163;0;Basic;Set Theory;Set Theory;Subset 128;Lithuania;339;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 972;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 643;Italy;181;0;Basic;Statistics;Statistics;Quantile,Frequency,Sample,Mean,Variance,Standard deviation,Median,Mode 175;Italy;339;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 576;Ireland;559;0;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 407;Portugal;100;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Power rule 176;Italy;795;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1029;Lithuania;1001;0;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule 884;Italy;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 71;Portugal;337;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 403;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 633;Italy;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 625;Russian Federation;662;1;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 483;Portugal;100;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Power rule 81;Lithuania;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 71;Portugal;271;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 1518;Portugal;297;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 168;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 41;Portugal;512;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangles 1091;Lithuania;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 973;Portugal;1109;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 1023;Lithuania;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1288;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1308;Italy;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 884;Italy;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 979;Portugal;1097;1;Basic;Numerical Methods;Numerical Methods;Lagrange's interpolation,Polynomial interpolation 625;Russian Federation;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1219;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 884;Italy;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 351;Portugal;118;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 26;Portugal;303;1;Basic;Probability ;Probability ;Addition, multiplication, and total probability rules,Sample space,Event,Axioms of probability 131;Lithuania;471;1;Advanced;Graph Theory;Graph Theory;Simple graph 359;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 750;Portugal;925;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 972;Portugal;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 1275;Lithuania;455;0;Basic;Linear Algebra;Vector Spaces;Basis 973;Portugal;951;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1256;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1147;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1143;Portugal;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 986;Portugal;447;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 958;Lithuania;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 64;Portugal;272;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 374;Portugal;350;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 91;Lithuania;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 633;Italy;439;0;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 181;Italy;919;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1220;Slovenia;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 71;Portugal;634;1;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Inverse matrix ,Solve matrix equation,Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Commuting matrices,Determinant computation 851;Italy;1208;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 591;Portugal;332;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1269;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 899;Lithuania;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1220;Slovenia;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1023;Lithuania;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1543;Portugal;1088;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 422;Portugal;137;0;Basic;Linear Algebra;Matrices and Determinants;Matrix equivalent - echelon,Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Linearly independent rows,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 876;Italy;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 852;Italy;221;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 168;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1281;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 91;Lithuania;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 168;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1081;Portugal;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 175;Italy;734;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Exponential rule 375;Portugal;345;1;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 1087;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 1220;Slovenia;455;0;Basic;Linear Algebra;Vector Spaces;Basis 524;Portugal;788;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 483;Portugal;114;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 956;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1312;Portugal;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1087;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 956;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 625;Russian Federation;467;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Polygons,Classification of geometrical figures,Geometrical figures 414;Portugal;222;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 884;Italy;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1308;Italy;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1229;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1220;Slovenia;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 524;Portugal;241;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 376;Portugal;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1220;Slovenia;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 967;Portugal;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 420;Portugal;125;1;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Symmetric matrix,Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication 204;Lithuania;521;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Regular polygon 426;Portugal;359;1;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 376;Portugal;358;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 967;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 913;Ireland;447;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1292;Italy;951;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 80;Lithuania;528;1;Basic;Integration;Double Integration;Changing order of integration,Cartesian coordinates 26;Portugal;560;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 394;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1411;Portugal;306;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 176;Italy;97;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 91;Lithuania;449;1;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 407;Portugal;250;0;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Trigonometric rules 37;Portugal;367;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures 1220;Slovenia;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1023;Lithuania;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1334;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 175;Italy;1090;1;Basic;Numerical Methods;Numerical Methods;Nonlinear equation,Newton’s method 1194;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 197;Portugal;113;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 71;Portugal;97;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 1075;Portugal;873;0;Basic;Differentiation;Partial Differentiation;First order 626;Italy;250;0;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Trigonometric rules 91;Lithuania;493;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangles,Triangle inequality 351;Portugal;484;0;Advanced;Differentiation;Derivatives;Power rule,Product rule 699;Portugal;193;1;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 351;Portugal;118;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 178;Italy;147;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 712;Portugal;204;1;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 1220;Slovenia;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 525;Portugal;512;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangles 1220;Slovenia;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 411;Portugal;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1351;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1241;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1173;Portugal;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 483;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 473;Portugal;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 165;Portugal;524;0;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Rhombus 582;Lithuania;551;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality 374;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 91;Lithuania;420;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1071;Lithuania;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 692;Portugal;193;0;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 626;Italy;925;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 374;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1036;Lithuania;998;0;Basic;Differentiation;Partial Differentiation;First order 311;Ireland;639;1;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Determinant computation,Determinant properties,Matrix operations 853;Italy;89;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1220;Slovenia;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1271;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1146;Portugal;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 61;Portugal;169;1;Basic;Differential Equations;Differential Equations;Linear differential equation 1146;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1075;Portugal;878;0;Basic;Differentiation;Partial Differentiation;Second order,First order 415;Portugal;339;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 986;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1533;Portugal;559;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 36;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1428;Portugal;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 700;Portugal;204;1;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 1220;Slovenia;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 457;Portugal;348;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Complex plane ,Real part 71;Portugal;561;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 1288;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 71;Portugal;717;1;Basic;Differentiation;Derivatives;Trigonometric rules,Quotient rule 1109;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 634;Italy;382;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 855;Italy;246;0;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1322;Italy;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1179;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 376;Portugal;1054;1;Advanced;Complex Numbers;Complex Numbers;Equations involving complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Algebraic form,Real part 1288;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1564;Portugal;918;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 511;Portugal;639;1;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Determinant computation,Determinant properties,Matrix operations 986;Portugal;430;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 731;Portugal;204;1;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 483;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1075;Portugal;258;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 511;Portugal;636;0;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 457;Portugal;340;1;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers,Conjugate number 1517;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 403;Portugal;448;1;Advanced;Linear Algebra;Vector Spaces;Subspace 973;Portugal;239;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 986;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 898;Portugal;1012;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 85;Lithuania;1142;1;Basic;Set Theory;Set Theory;Subset 853;Italy;218;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 576;Ireland;570;1;Advanced;Analytic Geometry;Analytic Geometry;Distance,Orthogonal projection,Orthogonality 1542;Portugal;1109;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 1220;Slovenia;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 657;Ireland;204;1;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 511;Portugal;243;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1166;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 955;Lithuania;1117;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 884;Italy;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 142;Portugal;788;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 1076;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 986;Portugal;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 966;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 731;Portugal;178;0;Basic;Statistics;Statistics;Mean,Variance,Standard deviation,Median,Mode 958;Lithuania;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1150;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 899;Lithuania;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1334;Portugal;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 168;Portugal;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 91;Lithuania;514;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 1543;Portugal;1099;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1286;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1049;Lithuania;874;0;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule 1256;Portugal;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 524;Portugal;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1185;Portugal;385;1;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 913;Ireland;1099;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1290;Italy;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 509;Portugal;641;1;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties,Hermitian matrix,Symmetric matrix,Matrix multiplication,Linearly independent rows,Matrix operations 902;Lithuania;204;1;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 464;Portugal;346;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 174;Portugal;730;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 638;Italy;180;0;Basic;Statistics;Statistics;Mean,Median,Mode 1428;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 965;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 155;Spain;82;0;Basic;Differentiation;Derivatives;Logarithmic rule,Power rule,Exponential rule,Trigonometric rules,Product rule 1023;Lithuania;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 311;Ireland;650;0;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 359;Portugal;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 151;Portugal;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 407;Portugal;512;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangles 351;Portugal;142;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 913;Ireland;204;0;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 80;Lithuania;608;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector 509;Portugal;493;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangles,Triangle inequality 155;Spain;169;1;Basic;Differential Equations;Differential Equations;Linear differential equation 1481;Portugal;85;0;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 1157;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 958;Lithuania;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 633;Italy;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1253;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 349;Portugal;273;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 1220;Slovenia;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1220;Slovenia;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1289;Italy;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1244;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 349;Portugal;147;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 37;Portugal;1088;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 1289;Italy;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1077;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1044;Lithuania;258;1;Basic;Differentiation;Partial Differentiation;First order,Gradient 85;Lithuania;387;0;Basic;Graph Theory;Graph Theory;Shortest path,Tree,Spanning tree,Path 374;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 90;Lithuania;648;1;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 956;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1156;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 181;Italy;981;0;Basic;Real Functions of a single variable;Limits and Continuity;Limits 1274;Portugal;787;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 884;Italy;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 80;Lithuania;1061;0;Basic;Complex Numbers;Complex Numbers;Complex plane 415;Portugal;133;1;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 1219;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 175;Italy;1111;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1220;Slovenia;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 26;Portugal;695;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product 414;Portugal;243;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1292;Italy;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 176;Italy;798;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 91;Lithuania;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 625;Russian Federation;520;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1150;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 349;Portugal;273;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 1039;Lithuania;998;0;Basic;Differentiation;Partial Differentiation;First order 1252;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 1324;Italy;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 955;Lithuania;381;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 913;Ireland;446;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 175;Italy;1101;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 414;Portugal;245;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1273;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 175;Italy;339;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 1517;Portugal;288;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 969;Romania;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 28;Portugal;566;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Orthogonality,Locus 675;Portugal;80;1;Basic;Statistics;Statistics;Population,Variance,Median,Standard deviation,Mode,Quantile,Sample,Mean 1220;Slovenia;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 955;Lithuania;1088;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 509;Portugal;367;0;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures 1525;Portugal;318;0;Advanced;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 1220;Slovenia;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1047;Lithuania;908;0;Basic;Differentiation;Partial Differentiation;Gradient,Directional derivative 1093;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 913;Ireland;193;1;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 91;Lithuania;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 852;Italy;217;0;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 415;Portugal;638;1;Advanced;Linear Algebra;Matrices and Determinants;Solve matrix equation,Matrix equivalent - echelon,Inverse matrix ,Determinant computation,Determinant properties,Matrix rank,Hermitian matrix,Matrix operations,Symmetric matrix,Matrix multiplication,Linearly independent rows,Commuting matrices 913;Ireland;234;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 890;Portugal;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 36;Portugal;1147;1;Basic;Set Theory;Set Theory;Subset 349;Portugal;730;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 955;Lithuania;1214;0;Basic;Numerical Methods;Numerical Methods;Mean,Median,Outliers,Interquartile range 1173;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1173;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 168;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 218;Lithuania;114;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 853;Italy;222;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 851;Italy;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1517;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1220;Slovenia;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 37;Portugal;394;1;Basic;Integration;Integration Techniques;Substitution 1322;Italy;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1080;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1283;Italy;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 71;Portugal;668;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 969;Romania;419;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 131;Lithuania;479;1;Advanced;Graph Theory;Graph Theory;Tree,Simple graph,Spanning tree,Path 1543;Portugal;1116;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 750;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 884;Italy;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 128;Lithuania;122;0;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 510;Portugal;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1291;Italy;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 340;Portugal;488;0;Basic;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 1087;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 168;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1185;Portugal;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 359;Portugal;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1486;Portugal;796;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 576;Ireland;547;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Orthogonality,Scalar product 1244;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 525;Portugal;666;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 855;Italy;917;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1256;Portugal;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1079;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 240;Lithuania;921;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 633;Italy;432;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 972;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1322;Italy;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 851;Italy;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1252;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 641;Italy;193;0;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 1565;Portugal;686;0;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 972;Portugal;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 634;Italy;142;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 599;Italy;621;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 1275;Lithuania;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 422;Portugal;132;0;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 1505;Portugal;299;1;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 751;Lithuania;565;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonal projection,Orthogonality,Collinearity,Locus 91;Lithuania;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1543;Portugal;1089;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 239;Lithuania;717;0;Basic;Differentiation;Derivatives;Trigonometric rules,Quotient rule 71;Portugal;1100;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 966;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 80;Lithuania;567;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a line,Orthogonality,Collinearity 414;Portugal;218;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1220;Slovenia;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 37;Portugal;1226;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Exponential rule 426;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 175;Italy;1489;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Modulus of a complex number,Algebraic form,Real part,Equations involving complex numbers,Imaginary part 1191;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 52;Portugal;458;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometric transformations,Geometrical figures 1322;Italy;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 974;Portugal;1251;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 884;Italy;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 966;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 168;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 885;Italy;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1308;Italy;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 80;Lithuania;342;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 1564;Portugal;982;1;Basic;Real Functions of a single variable;Limits and Continuity;Limits 176;Italy;1226;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Exponential rule 175;Italy;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 26;Portugal;489;0;Basic;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 1220;Slovenia;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1289;Italy;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1087;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 168;Portugal;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 167;Portugal;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 509;Portugal;89;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 972;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1022;Lithuania;743;0;Basic;Optimization;Linear Optimization;Duality theory,Linear programming 750;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 890;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 91;Lithuania;508;1;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 1163;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 483;Portugal;524;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Rhombus 376;Portugal;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 80;Lithuania;652;1;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 972;Portugal;289;0;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 625;Russian Federation;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 466;Portugal;358;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 1023;Lithuania;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1039;Lithuania;876;0;Basic;Differentiation;Partial Differentiation;Directional derivative,Gradient,First order,Second order 91;Lithuania;521;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Regular polygon 1219;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 967;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 851;Italy;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1517;Portugal;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 415;Portugal;338;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 71;Portugal;1088;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 411;Portugal;853;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 37;Portugal;467;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Polygons,Classification of geometrical figures,Geometrical figures 1557;Portugal;674;1;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 201;Lithuania;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 409;Portugal;338;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 411;Portugal;851;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 1079;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 69;Portugal;564;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonality 380;Portugal;357;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 451;Portugal;298;0;Basic;Probability ;Probability ;Event,Axioms of probability 1082;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 953;Lithuania;184;1;Basic;Statistics;Statistics;Frequency,Sample,Stem and Leaf diagram,Variance,Standard deviation,Relative frequency 1147;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 151;Portugal;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 464;Portugal;340;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers,Conjugate number 1220;Slovenia;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 80;Lithuania;698;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Distance 1517;Portugal;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1220;Slovenia;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 643;Italy;80;0;Basic;Statistics;Statistics;Population,Variance,Median,Standard deviation,Mode,Quantile,Sample,Mean 1080;Portugal;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 576;Ireland;554;0;Basic;Analytic Geometry;Analytic Geometry;Scalar product,Orthogonality,Orthogonal projection,Distance 988;Portugal;244;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 26;Portugal;215;1;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 576;Ireland;569;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance,Scalar product,Cross product,Orthogonality,Collinearity 1543;Portugal;1101;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 552;Portugal;159;0;Basic;Differential Equations;Differential Equations;Linear differential equation,Integral curve,Cauchy problem 349;Portugal;661;1;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 1284;Italy;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 239;Lithuania;661;1;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 899;Lithuania;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1049;Lithuania;908;0;Basic;Differentiation;Partial Differentiation;Gradient,Directional derivative 913;Ireland;305;0;Basic;Probability ;Probability ;Event,Axioms of probability,Addition, multiplication, and total probability rules,Sample space 407;Portugal;519;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 91;Lithuania;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 168;Portugal;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 394;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 175;Italy;1096;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1334;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1080;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 175;Italy;332;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1363;Portugal;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1044;Lithuania;873;1;Basic;Differentiation;Partial Differentiation;First order 985;Romania;95;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule,Exponential rule 509;Portugal;136;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 1286;Italy;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 457;Portugal;350;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 1143;Portugal;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1023;Lithuania;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 525;Portugal;507;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry 1220;Slovenia;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 457;Portugal;348;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Complex plane ,Real part 1220;Slovenia;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1023;Lithuania;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1157;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 700;Portugal;193;1;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 1564;Portugal;82;0;Basic;Differentiation;Derivatives;Logarithmic rule,Power rule,Exponential rule,Trigonometric rules,Product rule 1220;Slovenia;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 414;Portugal;948;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 1505;Portugal;283;0;Basic;Optimization;Linear Optimization;Excel solver add-in,Simplex method,Linear programming 81;Lithuania;502;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 181;Italy;84;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Indeterminate forms,Limits 1087;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 37;Portugal;192;0;Basic;Integration;Integration Techniques;Trigonometric substitution,Simple integration 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1080;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 175;Italy;1475;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Real part,Equations involving complex numbers,Imaginary part,Conjugate number,Modulus of a complex number 1043;Lithuania;999;0;Basic;Differentiation;Partial Differentiation;First order 509;Portugal;364;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 1093;Portugal;451;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1044;Lithuania;908;0;Basic;Differentiation;Partial Differentiation;Gradient,Directional derivative 1517;Portugal;777;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1518;Portugal;138;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Determinant computation,Determinant properties,Inverse matrix 876;Italy;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1322;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 840;Italy;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 511;Portugal;917;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1182;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1076;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1219;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1256;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 966;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 422;Portugal;130;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 1219;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 510;Portugal;221;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 41;Portugal;468;0;Basic;Graph Theory;Graph Theory;Simple graph 1220;Slovenia;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1220;Slovenia;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1564;Portugal;97;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 91;Lithuania;419;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 483;Portugal;348;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Complex plane ,Real part 1220;Slovenia;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 511;Portugal;245;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1427;Portugal;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1024;Lithuania;256;0;Basic;Differentiation;Partial Differentiation;First order 1044;Lithuania;263;1;Basic;Differentiation;Partial Differentiation;First order 1283;Italy;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 455;Portugal;630;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue 1487;Portugal;936;1;Basic;Graph Theory;Graph Theory;Chromatic number 1220;Slovenia;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 956;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 175;Italy;614;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 36;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1220;Slovenia;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1109;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1277;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1427;Portugal;385;1;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 511;Portugal;950;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1220;Slovenia;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 175;Italy;104;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1182;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 41;Portugal;146;0;Basic;Differential Equations;Differential Equations;Separable variables equation 406;Portugal;90;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1023;Lithuania;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1411;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 151;Portugal;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 175;Italy;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 851;Italy;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 483;Portugal;667;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1080;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 175;Italy;793;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 885;Italy;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 855;Italy;215;0;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 151;Portugal;112;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 548;Portugal;492;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Axioms of probability,Event 1505;Portugal;1009;0;Basic;Optimization;Linear Optimization;Transportation problem,Excel solver add-in,Simplex method,Linear programming 510;Portugal;120;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1332;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 90;Lithuania;644;0;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Determinant computation,Matrix rank,Inverse matrix ,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 884;Italy;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1274;Portugal;113;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1517;Portugal;381;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 582;Lithuania;357;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 884;Italy;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1332;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 90;Lithuania;338;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 168;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 851;Italy;865;1;Basic;Optimization;Nonlinear Optimization;Lagrange multipliers,Minimum,Maximum,Stationary point 199;Lithuania;613;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1126;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 81;Lithuania;553;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Distance,Scalar product 725;Portugal;191;0;Basic;Statistics;Statistics;Median,Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance 876;Italy;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1077;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 420;Portugal;337;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 41;Portugal;332;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 876;Italy;424;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1334;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 168;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 71;Portugal;134;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1509;Portugal;981;1;Basic;Real Functions of a single variable;Limits and Continuity;Limits 378;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 969;Romania;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1289;Italy;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 174;Portugal;788;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 1220;Slovenia;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1220;Slovenia;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 750;Portugal;918;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1481;Portugal;773;0;Basic;Probability ;Probability ;Event,Sample space,Addition, multiplication, and total probability rules,Axioms of probability 1220;Slovenia;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 90;Lithuania;326;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 1275;Lithuania;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1195;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1274;Portugal;668;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 510;Portugal;952;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 175;Italy;1110;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 699;Portugal;81;0;Basic;Statistics;Statistics;Mean,Median,Mode 41;Portugal;497;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1332;Portugal;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 359;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 26;Portugal;567;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a line,Orthogonality,Collinearity 468;Portugal;351;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 168;Portugal;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 552;Portugal;892;1;Basic;Differential Equations;Differential Equations;Linear differential equation 1220;Slovenia;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 969;Romania;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1091;Lithuania;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1333;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 91;Lithuania;447;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1219;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 378;Portugal;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 90;Lithuania;128;0;Advanced;Linear Algebra;Matrices and Determinants;Matrix multiplication,Determinant computation,Determinant properties,Symmetric matrix,Hermitian matrix,Inverse matrix ,Linearly independent rows,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Matrix equivalent - echelon 1286;Italy;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 176;Italy;919;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 884;Italy;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 852;Italy;89;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 37;Portugal;880;1;Advanced;Differentiation;Partial Differentiation;First order,Directional derivative,Gradient 1077;Portugal;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 1081;Portugal;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 851;Italy;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 201;Lithuania;120;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 511;Portugal;652;1;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 394;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 165;Portugal;502;0;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 966;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1220;Slovenia;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1044;Lithuania;885;0;Basic;Differentiation;Partial Differentiation;Second order,First order 380;Portugal;866;0;Basic;Optimization;Nonlinear Optimization;Stationary point,Maximum,Saddle point,Optimal solution,Minimum 1109;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1272;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 406;Portugal;89;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1518;Portugal;644;1;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Determinant computation,Matrix rank,Inverse matrix ,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 890;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 168;Portugal;424;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1044;Lithuania;260;1;Basic;Differentiation;Partial Differentiation;First order,Gradient 751;Lithuania;559;0;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 1093;Portugal;446;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1195;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1324;Italy;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 483;Portugal;349;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 1126;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1148;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1147;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1220;Slovenia;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1087;Portugal;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 913;Ireland;1252;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 455;Portugal;123;1;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 422;Portugal;135;0;Basic;Linear Algebra;Matrices and Determinants;Symmetric matrix,Determinant computation,Determinant properties 853;Italy;241;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 853;Italy;952;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 890;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 913;Ireland;1125;1;Basic;Set Theory;Set Theory;Union of sets,Venn diagram,Complement of a set 455;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1220;Slovenia;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 168;Portugal;408;1;Advanced;Integration;Integration Techniques;Integration by parts 128;Lithuania;327;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 626;Italy;661;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 1242;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 986;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 1194;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 899;Lithuania;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 633;Italy;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 378;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 969;Romania;447;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1308;Italy;778;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 351;Portugal;720;1;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules,Logarithmic rule,Product rule 415;Portugal;136;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 712;Portugal;191;0;Basic;Statistics;Statistics;Median,Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance 26;Portugal;566;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Orthogonality,Locus 455;Portugal;644;0;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Determinant computation,Matrix rank,Inverse matrix ,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 376;Portugal;345;1;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 576;Ireland;699;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Locus,Intersection,Cartesian equations of a line 1271;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 524;Portugal;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 378;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1157;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 884;Italy;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1481;Portugal;564;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonality 37;Portugal;331;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 168;Portugal;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;366;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 1219;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 37;Portugal;617;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Spectrum,Eigenvector,Characteristic polynomial 1322;Italy;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 899;Lithuania;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 175;Italy;1120;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1220;Slovenia;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 344;Portugal;98;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 168;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 509;Portugal;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1244;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 451;Portugal;491;1;Advanced;Probability ;Probability ;Addition, multiplication, and total probability rules,Independence,Event 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 988;Portugal;221;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 851;Italy;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 664;Portugal;79;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 1538;Portugal;1086;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 1324;Italy;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 71;Portugal;593;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue 1557;Portugal;829;0;Basic;Differential Equations;Differential Equations;Linear differential equation 1284;Italy;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 979;Portugal;653;1;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix rank 466;Portugal;347;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 510;Portugal;102;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1565;Portugal;85;0;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 250;Lithuania;246;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1487;Portugal;475;1;Basic;Graph Theory;Graph Theory;Adjacency matrix 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 855;Italy;952;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1146;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 956;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 36;Portugal;1157;1;Basic;Set Theory;Set Theory;Subset 1044;Lithuania;999;1;Basic;Differentiation;Partial Differentiation;First order 71;Portugal;338;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 899;Lithuania;432;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 1557;Portugal;925;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 985;Romania;788;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 551;Lithuania;349;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 374;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1271;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1288;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1300;Italy;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 91;Lithuania;364;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 1157;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 80;Lithuania;951;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1322;Italy;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1350;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1044;Lithuania;883;0;Basic;Differentiation;Partial Differentiation;First order,Directional derivative 683;Ireland;177;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 151;Portugal;112;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 175;Italy;1097;1;Basic;Numerical Methods;Numerical Methods;Lagrange's interpolation,Polynomial interpolation 855;Italy;245;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 219;Lithuania;786;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 625;Russian Federation;371;0;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Geometrical figures 202;Lithuania;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1487;Portugal;341;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1564;Portugal;920;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1158;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1252;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1023;Lithuania;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1043;Lithuania;879;0;Basic;Differentiation;Partial Differentiation;First order,Second order 1220;Slovenia;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 751;Lithuania;551;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality 913;Ireland;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 69;Portugal;573;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Locus,Scalar product,Cross product,Collinearity 181;Italy;920;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 72;Portugal;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 422;Portugal;131;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 91;Lithuania;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1291;Italy;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 37;Portugal;252;1;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Power rule,Trigonometric rules 1284;Italy;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 406;Portugal;104;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 422;Portugal;641;0;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties,Hermitian matrix,Symmetric matrix,Matrix multiplication,Linearly independent rows,Matrix operations 483;Portugal;717;0;Basic;Differentiation;Derivatives;Trigonometric rules,Quotient rule 955;Lithuania;1251;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1252;Portugal;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 969;Romania;446;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1093;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 91;Lithuania;514;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 81;Lithuania;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 1557;Portugal;408;1;Advanced;Integration;Integration Techniques;Integration by parts 351;Portugal;102;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 509;Portugal;916;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Square linear system,Consistent system 1219;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1557;Portugal;693;1;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 524;Portugal;635;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 37;Portugal;559;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 37;Portugal;261;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 645;Italy;180;0;Basic;Statistics;Statistics;Mean,Median,Mode 1272;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 37;Portugal;866;0;Basic;Optimization;Nonlinear Optimization;Stationary point,Maximum,Saddle point,Optimal solution,Minimum 969;Romania;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 177;Italy;98;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 1219;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 394;Portugal;358;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 200;Lithuania;668;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 37;Portugal;862;0;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 955;Lithuania;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 1273;Portugal;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 72;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 966;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 403;Portugal;333;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 176;Italy;720;0;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules,Logarithmic rule,Product rule 175;Italy;97;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 1049;Lithuania;275;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 175;Italy;667;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 167;Portugal;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 853;Italy;92;1;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 174;Portugal;82;0;Basic;Differentiation;Derivatives;Logarithmic rule,Power rule,Exponential rule,Trigonometric rules,Product rule 1334;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1220;Slovenia;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1079;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 625;Russian Federation;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 511;Portugal;795;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 1146;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 511;Portugal;218;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 91;Lithuania;446;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 378;Portugal;548;1;Basic;Analytic Geometry;Analytic Geometry;Collinearity,Distance,Locus,Cross product,Orthogonality,Scalar product 91;Lithuania;338;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 36;Portugal;145;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1195;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1311;Italy;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 64;Portugal;118;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 598;Italy;951;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 885;Italy;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1182;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1542;Portugal;1100;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 748;Portugal;947;1;Basic;Graph Theory;Graph Theory;Spanning tree,Shortest path,Path,Tree 751;Lithuania;717;0;Basic;Differentiation;Derivatives;Trigonometric rules,Quotient rule 955;Lithuania;1111;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1220;Slovenia;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1525;Portugal;859;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Second derivative test,Minimum,Maximum,Stationary point,Saddle point 725;Portugal;190;0;Basic;Statistics;Statistics;Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance,Median 852;Italy;245;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 175;Italy;1486;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 483;Portugal;620;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 380;Portugal;904;0;Basic;Differential Equations;Differential Equations;Bernoulli equation,Linear differential equation 406;Portugal;501;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids 582;Lithuania;550;1;Advanced;Analytic Geometry;Analytic Geometry;Cross product,Orthogonality 199;Lithuania;104;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 168;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 956;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1173;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 898;Portugal;278;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1079;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 378;Portugal;572;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Scalar product,Cross product,Distance,Collinearity,Orthogonality 1271;Portugal;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 684;Ireland;78;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 633;Italy;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 41;Portugal;113;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 168;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 625;Russian Federation;787;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 181;Italy;921;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 91;Lithuania;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 524;Portugal;653;1;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix rank 725;Portugal;78;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 1324;Italy;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1023;Lithuania;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 380;Portugal;157;0;Basic;Differential Equations;Differential Equations;Homogeneous equation,Cauchy problem 1023;Lithuania;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1308;Italy;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 986;Portugal;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 468;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1289;Italy;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 128;Lithuania;330;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number 626;Italy;661;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 884;Italy;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1148;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 151;Portugal;113;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 854;Italy;92;1;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 552;Portugal;889;0;Basic;Differential Equations;Differential Equations;Linear differential equation 1080;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1087;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 600;Italy;129;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Determinant computation,Determinant properties,Symmetric matrix,Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank 28;Portugal;573;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Locus,Scalar product,Cross product,Collinearity 899;Lithuania;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 972;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 689;Portugal;820;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum,Stationary point,Saddle point 64;Portugal;714;1;Basic;Integration;Integration Techniques;Simple integration,Direct inspection 1109;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 178;Italy;657;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 71;Portugal;326;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 899;Lithuania;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 394;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1135;Portugal;777;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 697;Portugal;182;1;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 1487;Portugal;1198;0;Basic;Integration;Definite Integrals;Area of a planar region ,Fundamental theorem of Calculus 625;Russian Federation;663;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 166;Portugal;547;0;Basic;Analytic Geometry;Analytic Geometry;Cross product,Orthogonality,Scalar product 175;Italy;1087;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 91;Lithuania;359;1;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 1288;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 918;Portugal;401;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 1321;Portugal;241;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 176;Italy;113;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 918;Portugal;999;1;Basic;Differentiation;Partial Differentiation;First order 1034;Lithuania;912;0;Basic;Differentiation;Partial Differentiation;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 955;Lithuania;1111;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1197;Slovenia;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 853;Italy;239;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 510;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 986;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 421;Portugal;326;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 1542;Portugal;1101;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1525;Portugal;746;0;Advanced;Optimization;Linear Optimization;Duality theory,Excel solver add-in,Simplex method,Linear programming,Sensitivity analysis,Postoptimality analysis 913;Ireland;1100;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1220;Slovenia;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 633;Italy;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 176;Italy;921;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1276;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1044;Lithuania;1000;0;Basic;Differentiation;Partial Differentiation;First order 128;Lithuania;137;0;Basic;Linear Algebra;Matrices and Determinants;Matrix equivalent - echelon,Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Linearly independent rows,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 1171;Portugal;1015;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 411;Portugal;650;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 986;Portugal;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 969;Romania;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 852;Italy;91;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1322;Italy;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 855;Italy;224;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1220;Slovenia;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 953;Lithuania;202;0;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 884;Italy;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1081;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 41;Portugal;387;0;Basic;Graph Theory;Graph Theory;Shortest path,Tree,Spanning tree,Path 178;Italy;734;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Exponential rule 380;Portugal;1012;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 394;Portugal;352;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 37;Portugal;1087;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 359;Portugal;112;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 625;Russian Federation;520;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 899;Lithuania;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1044;Lithuania;260;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 175;Italy;1485;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 625;Russian Federation;460;0;Basic;Fundamental Mathematics;Elementary Geometry;Polyhedrons,Platonic solids,Geometric solids 511;Portugal;789;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 168;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 510;Portugal;220;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 80;Lithuania;730;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1402;Portugal;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 913;Ireland;227;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 91;Lithuania;331;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 166;Portugal;546;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonal projection,Distance,Cross product,Orthogonality 576;Ireland;234;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 409;Portugal;330;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number 1080;Portugal;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 483;Portugal;519;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1557;Portugal;673;0;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 1322;Italy;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 168;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1173;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 509;Portugal;666;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 955;Lithuania;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 448;Portugal;294;0;Basic;Probability ;Probability ;Event,Axioms of probability,Sample space 979;Portugal;1214;1;Basic;Numerical Methods;Numerical Methods;Mean,Median,Outliers,Interquartile range 524;Portugal;793;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 969;Romania;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 426;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 85;Lithuania;362;0;Basic;Graph Theory;Graph Theory;Simple graph 1557;Portugal;922;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 374;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1322;Italy;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 349;Portugal;720;0;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules,Logarithmic rule,Product rule 406;Portugal;216;0;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 1324;Italy;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 378;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1274;Portugal;666;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 956;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 525;Portugal;617;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Spectrum,Eigenvector,Characteristic polynomial 634;Italy;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1149;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1256;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1147;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 625;Russian Federation;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1143;Portugal;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 168;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 625;Russian Federation;662;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1517;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 409;Portugal;339;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 1289;Italy;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 380;Portugal;349;0;Advanced;Complex Numbers;Complex Numbers;Complex plane 1082;Portugal;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1219;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 913;Ireland;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 168;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 168;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1147;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1056;Lithuania;883;0;Basic;Differentiation;Partial Differentiation;First order,Directional derivative 26;Portugal;573;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Locus,Scalar product,Cross product,Collinearity 689;Portugal;865;1;Basic;Optimization;Nonlinear Optimization;Lagrange multipliers,Minimum,Maximum,Stationary point 955;Lithuania;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 176;Italy;918;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 91;Lithuania;507;0;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry 1179;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 41;Portugal;157;1;Basic;Differential Equations;Differential Equations;Homogeneous equation,Cauchy problem 1197;Slovenia;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 311;Ireland;131;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 168;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1049;Lithuania;998;0;Basic;Differentiation;Partial Differentiation;First order 974;Portugal;420;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 81;Lithuania;455;0;Basic;Linear Algebra;Vector Spaces;Basis 80;Lithuania;142;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 26;Portugal;224;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 956;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 985;Romania;114;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1557;Portugal;922;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 415;Portugal;140;1;Advanced;Linear Algebra;Matrices and Determinants;Matrix operations,Inverse matrix 406;Portugal;651;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 1075;Portugal;1002;1;Basic;Differentiation;Partial Differentiation;First order 1288;Portugal;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 852;Italy;89;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 890;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 525;Portugal;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 28;Portugal;179;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1561;Portugal;392;1;Advanced;Integration;Integration Techniques;Substitution 91;Lithuania;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 524;Portugal;229;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 175;Italy;1481;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 524;Portugal;92;0;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 415;Portugal;636;0;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 509;Portugal;245;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 189;Portugal;250;0;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Trigonometric rules 1220;Slovenia;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 890;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 349;Portugal;272;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 1256;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1023;Lithuania;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 840;Italy;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1312;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 250;Lithuania;640;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 986;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1561;Portugal;408;0;Advanced;Integration;Integration Techniques;Integration by parts 151;Portugal;102;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1219;Portugal;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 37;Portugal;1203;0;Basic;Integration;Definite Integrals;Volume of revolution,Fundamental theorem of Calculus 1538;Portugal;1094;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 969;Romania;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 552;Portugal;677;0;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 1079;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 524;Portugal;363;1;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 1351;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1292;Italy;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 57;Portugal;1212;1;Basic;Statistics;Statistics;Mean,Median,Outliers,Interquartile range 598;Italy;241;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1220;Slovenia;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 155;Spain;554;0;Basic;Analytic Geometry;Analytic Geometry;Scalar product,Orthogonality,Orthogonal projection,Distance 1135;Portugal;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 128;Lithuania;331;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 625;Russian Federation;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1557;Portugal;674;0;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 72;Portugal;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 918;Portugal;720;0;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules,Logarithmic rule,Product rule 175;Italy;1487;1;Basic;Complex Numbers;Complex Numbers;Modulus of a complex number,Algebraic form,Real part,Equations involving complex numbers,Imaginary part,Conjugate number 890;Portugal;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1481;Portugal;465;0;Basic;Graph Theory;Graph Theory;Adjacency matrix,Simple graph 168;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 876;Italy;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 885;Italy;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1182;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 651;Ireland;79;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 1220;Slovenia;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 972;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 52;Portugal;523;0;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures,Polygons 473;Portugal;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 890;Portugal;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1299;Italy;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 168;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 71;Portugal;314;0;Basic;Probability ;Probability ;Event,Sample space 1182;Portugal;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 979;Portugal;1117;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 85;Lithuania;1124;1;Basic;Set Theory;Set Theory;Integration by parts,Substitution,Simple integration,Direct inspection 1363;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 898;Portugal;1015;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 551;Lithuania;355;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 470;Portugal;701;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product,Distance 1230;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 840;Italy;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 168;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 36;Portugal;147;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 175;Italy;82;0;Basic;Differentiation;Derivatives;Logarithmic rule,Power rule,Exponential rule,Trigonometric rules,Product rule 91;Lithuania;369;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Geometrical figures,Classification of geometrical figures 642;Italy;80;0;Basic;Statistics;Statistics;Population,Variance,Median,Standard deviation,Mode,Quantile,Sample,Mean 852;Italy;916;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Square linear system,Consistent system 525;Portugal;788;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 1087;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 81;Lithuania;566;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Orthogonality,Locus 465;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 28;Portugal;336;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Modulus of a complex number,Imaginary part 509;Portugal;597;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Diagonalization,Eigenvalue 890;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 378;Portugal;557;1;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance 81;Lithuania;701;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product,Distance 625;Russian Federation;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 884;Italy;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 1308;Italy;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1220;Slovenia;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1305;Italy;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 840;Italy;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1322;Italy;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1050;Lithuania;263;0;Basic;Differentiation;Partial Differentiation;First order 374;Portugal;347;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 510;Portugal;787;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 855;Italy;217;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 1242;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 202;Lithuania;667;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 511;Portugal;131;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 633;Italy;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 641;Italy;77;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 91;Lithuania;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 174;Portugal;657;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 913;Ireland;1096;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 374;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 625;Russian Federation;786;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 457;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 80;Lithuania;903;1;Basic;Differential Equations;Differential Equations;Separable variables equation 81;Lithuania;572;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Scalar product,Cross product,Distance,Collinearity,Orthogonality 576;Ireland;574;1;Advanced;Analytic Geometry;Analytic Geometry;Collinearity,Orthogonality,Distance,Scalar product 1220;Slovenia;455;1;Basic;Linear Algebra;Vector Spaces;Basis 955;Lithuania;1214;1;Basic;Numerical Methods;Numerical Methods;Mean,Median,Outliers,Interquartile range 599;Italy;608;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector 1220;Slovenia;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1220;Slovenia;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 376;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1289;Italy;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 1023;Lithuania;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 81;Lithuania;560;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 638;Italy;187;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 1402;Portugal;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 41;Portugal;338;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 955;Lithuania;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1564;Portugal;406;0;Basic;Integration;Integration Techniques;Direct inspection 955;Lithuania;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1411;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 1150;Portugal;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 91;Lithuania;494;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1079;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 509;Portugal;668;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 175;Italy;145;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 374;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 535;Portugal;345;0;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 689;Portugal;861;1;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 80;Lithuania;796;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 855;Italy;952;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1402;Portugal;381;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1109;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 378;Portugal;698;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Distance 473;Portugal;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1093;Portugal;419;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 598;Italy;652;1;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 1135;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 411;Portugal;123;0;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 376;Portugal;356;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers 81;Lithuania;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 168;Portugal;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1543;Portugal;1092;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1036;Lithuania;1000;0;Basic;Differentiation;Partial Differentiation;First order 510;Portugal;949;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1135;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 913;Ireland;1098;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1023;Lithuania;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 876;Italy;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 511;Portugal;644;0;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Determinant computation,Matrix rank,Inverse matrix ,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 1289;Italy;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 1351;Portugal;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 1286;Italy;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1143;Portugal;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 852;Italy;917;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 955;Lithuania;1094;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 91;Lithuania;462;1;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 1071;Lithuania;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 175;Italy;1102;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1284;Italy;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 80;Lithuania;592;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Logarithmic rule,Product rule,Trigonometric rules 250;Lithuania;594;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Spectrum,Characteristic polynomial,Diagonalization,Eigenvalue 359;Portugal;793;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 41;Portugal;494;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 72;Portugal;289;0;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1220;Slovenia;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1322;Italy;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 81;Lithuania;473;1;Advanced;Graph Theory;Graph Theory;Simple graph 142;Portugal;786;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 473;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 898;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 913;Ireland;1086;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 1283;Italy;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 128;Lithuania;141;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 91;Lithuania;510;1;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 966;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 511;Portugal;243;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 378;Portugal;697;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Distance,Cross product 376;Portugal;346;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 1077;Portugal;448;0;Advanced;Linear Algebra;Vector Spaces;Subspace 775;Portugal;761;0;Basic;Probability ;Probability ;Event,Sample space,Addition, multiplication, and total probability rules,Axioms of probability 1517;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1080;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 956;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 414;Portugal;90;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1286;Italy;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 167;Portugal;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 979;Portugal;1091;0;Basic;Numerical Methods;Numerical Methods;Nonlinear equation,Newton’s method 239;Lithuania;661;1;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 1219;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 359;Portugal;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1308;Italy;278;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1191;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 689;Portugal;858;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum,Stationary point,Saddle point 1487;Portugal;1207;1;Basic;Integration;Definite Integrals;Volume of revolution,Fundamental theorem of Calculus 1276;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 548;Portugal;301;0;Basic;Probability ;Probability ;Sample space,Event 854;Italy;961;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Homogeneous system,Consistent system 91;Lithuania;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1334;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1219;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 776;Portugal;550;1;Advanced;Analytic Geometry;Analytic Geometry;Cross product,Orthogonality 1220;Slovenia;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 397;Portugal;354;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 69;Portugal;567;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a line,Orthogonality,Collinearity 576;Ireland;573;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Locus,Scalar product,Cross product,Collinearity 351;Portugal;666;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1286;Italy;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 36;Portugal;272;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 988;Portugal;951;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1095;Portugal;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1230;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1517;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 966;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 913;Ireland;183;1;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 913;Ireland;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 393;Lithuania;355;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 151;Portugal;118;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 411;Portugal;391;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 1291;Italy;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 208;Lithuania;129;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Determinant computation,Determinant properties,Symmetric matrix,Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank 890;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 80;Lithuania;948;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 510;Portugal;90;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 311;Ireland;141;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 509;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 128;Lithuania;328;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 344;Portugal;611;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 349;Portugal;275;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 851;Italy;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1308;Italy;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 510;Portugal;113;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 349;Portugal;752;1;Basic;Differentiation;Derivatives;Power rule,Quotient rule,Product rule,Trigonometric rules 90;Lithuania;339;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 1281;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 851;Italy;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 155;Spain;146;0;Basic;Differential Equations;Differential Equations;Separable variables equation 890;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 91;Lithuania;464;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometrical figures 1353;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 80;Lithuania;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 394;Portugal;354;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 979;Portugal;634;0;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Inverse matrix ,Solve matrix equation,Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Commuting matrices,Determinant computation 91;Lithuania;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 851;Italy;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 638;Italy;81;1;Basic;Statistics;Statistics;Mean,Median,Mode 1518;Portugal;134;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 988;Portugal;239;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1375;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 420;Portugal;329;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 28;Portugal;234;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 426;Portugal;340;1;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers,Conjugate number 91;Lithuania;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1173;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 36;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1163;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1271;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1044;Lithuania;1000;1;Basic;Differentiation;Partial Differentiation;First order 509;Portugal;650;0;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 1032;Lithuania;266;0;Basic;Differentiation;Partial Differentiation;First order,Second order 483;Portugal;504;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 36;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 91;Lithuania;510;0;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 1091;Lithuania;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 464;Portugal;347;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 359;Portugal;505;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangles 85;Lithuania;1139;0;Basic;Set Theory;Set Theory;Subset 913;Ireland;299;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 1109;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 80;Lithuania;742;0;Basic;Optimization;Linear Optimization;Duality theory,Linear programming 26;Portugal;869;0;Basic;Differential Equations;Differential Equations;Separable variables equation 177;Italy;97;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 969;Romania;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 57;Portugal;78;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 955;Lithuania;1104;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1252;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 582;Lithuania;349;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 1220;Slovenia;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 380;Portugal;891;0;Basic;Differential Equations;Differential Equations;Linear differential equation 1288;Portugal;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 751;Lithuania;142;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 455;Portugal;394;1;Basic;Integration;Integration Techniques;Substitution 422;Portugal;124;1;Advanced;Linear Algebra;Matrices and Determinants;Symmetric matrix,Inverse matrix ,Hermitian matrix,Commuting matrices,Linearly independent rows,Solve matrix equation,Matrix operations,Matrix rank,Matrix equivalent - echelon,Determinant computation,Matrix multiplication,Determinant properties 71;Portugal;147;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1044;Lithuania;269;1;Basic;Differentiation;Partial Differentiation;First order,Second order 918;Portugal;259;1;Basic;Differentiation;Partial Differentiation;First order,Gradient 966;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1518;Portugal;643;1;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 473;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 899;Lithuania;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 853;Italy;948;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 1351;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 168;Portugal;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 91;Lithuania;345;1;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 168;Portugal;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1126;Portugal;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 625;Russian Federation;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 918;Portugal;1000;0;Basic;Differentiation;Partial Differentiation;First order 1324;Italy;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 411;Portugal;603;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector,Spectrum,Characteristic polynomial 955;Lithuania;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 852;Italy;916;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Square linear system,Consistent system 393;Lithuania;357;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 426;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1332;Portugal;430;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 351;Portugal;255;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Logarithmic rule 168;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 168;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 483;Portugal;627;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue,Diagonalization 483;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 776;Portugal;576;0;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 1220;Slovenia;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 860;Italy;234;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 511;Portugal;794;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 876;Italy;454;1;Basic;Linear Algebra;Vector Spaces;Basis 1130;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 90;Lithuania;135;0;Basic;Linear Algebra;Matrices and Determinants;Symmetric matrix,Determinant computation,Determinant properties 979;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 664;Portugal;185;1;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 72;Portugal;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 625;Russian Federation;524;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Rhombus 551;Lithuania;558;0;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 645;Italy;178;1;Basic;Statistics;Statistics;Mean,Variance,Standard deviation,Median,Mode 1284;Italy;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 775;Portugal;488;0;Basic;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 420;Portugal;647;0;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations 80;Lithuania;568;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 853;Italy;90;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 852;Italy;242;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 168;Portugal;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 200;Lithuania;112;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 91;Lithuania;640;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 1284;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1163;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1282;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 198;Italy;521;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Regular polygon 576;Ireland;575;1;Advanced;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Cross product,Scalar product 406;Portugal;462;1;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 1135;Portugal;381;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 955;Lithuania;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 71;Portugal;253;0;Basic;Differentiation;Derivatives;Logarithmic rule,Trigonometric rules 1402;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 625;Russian Federation;792;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 851;Italy;963;0;Basic;Optimization;Nonlinear Optimization;Simplex method,Duality theory 1543;Portugal;1086;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 899;Lithuania;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1081;Portugal;451;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1081;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 525;Portugal;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1291;Italy;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 168;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 85;Lithuania;475;0;Basic;Graph Theory;Graph Theory;Adjacency matrix 1146;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1505;Portugal;305;1;Basic;Probability ;Probability ;Event,Axioms of probability,Addition, multiplication, and total probability rules,Sample space 1411;Portugal;306;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 1284;Italy;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 344;Portugal;272;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 1220;Slovenia;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 552;Portugal;673;0;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 509;Portugal;90;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 890;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1220;Slovenia;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 175;Italy;795;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 966;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 751;Lithuania;701;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product,Distance 633;Italy;133;1;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 647;Ireland;79;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 1516;Portugal;956;1;Basic;Optimization;Linear Optimization;Linear programming 1171;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 411;Portugal;724;0;Advanced;Integration;Integration Techniques;Trigonometric substitution 525;Portugal;458;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometric transformations,Geometrical figures 37;Portugal;257;0;Basic;Differentiation;Partial Differentiation;Gradient,First order 376;Portugal;336;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Modulus of a complex number,Imaginary part 511;Portugal;225;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1248;Italy;243;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 663;Portugal;189;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 972;Portugal;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1220;Slovenia;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1543;Portugal;1093;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 91;Lithuania;513;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 1147;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 81;Lithuania;943;1;Basic;Graph Theory;Graph Theory;Spanning tree,Shortest path,Path,Tree 1288;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 80;Lithuania;541;0;Basic;Integration;Double Integration;y-simple region (type I),Cartesian coordinates,Iterate integrals 985;Romania;789;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 71;Portugal;595;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Eigenvalue 1486;Portugal;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1291;Italy;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 311;Ireland;135;1;Basic;Linear Algebra;Matrices and Determinants;Symmetric matrix,Determinant computation,Determinant properties 1220;Slovenia;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 91;Lithuania;394;1;Basic;Integration;Integration Techniques;Substitution 167;Portugal;448;1;Advanced;Linear Algebra;Vector Spaces;Subspace 168;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 175;Italy;1052;0;Basic;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Algebraic form,Operations with complex numbers,Real part,Equations involving complex numbers 1339;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 600;Italy;245;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 511;Portugal;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1334;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 483;Portugal;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 1076;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 72;Portugal;339;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 1557;Portugal;832;0;Basic;Differential Equations;Differential Equations;Separable variables equation 509;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1220;Slovenia;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1220;Slovenia;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 72;Portugal;432;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 1179;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1146;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 465;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 37;Portugal;261;1;Basic;Differentiation;Partial Differentiation;First order,Gradient 1256;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 378;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1091;Lithuania;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1289;Italy;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 80;Lithuania;337;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 1076;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1352;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 525;Portugal;371;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Geometrical figures 380;Portugal;1004;0;Basic;Optimization;Nonlinear Optimization;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 168;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 90;Lithuania;353;0;Basic;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1220;Slovenia;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 403;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 890;Portugal;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 403;Portugal;354;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 972;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1185;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 884;Italy;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 448;Portugal;301;0;Basic;Probability ;Probability ;Sample space,Event 168;Portugal;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 167;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1288;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1324;Italy;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 175;Italy;353;1;Basic;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 955;Lithuania;1096;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 876;Italy;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1049;Lithuania;267;0;Basic;Differentiation;Partial Differentiation;First order,Second order 375;Portugal;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 524;Portugal;787;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 375;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 535;Portugal;358;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 552;Portugal;568;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 1427;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 625;Russian Federation;467;0;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Polygons,Classification of geometrical figures,Geometrical figures 1220;Slovenia;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 155;Spain;836;1;Basic;Differential Equations;Differential Equations;Linear differential equation 128;Lithuania;650;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 1196;Slovenia;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1044;Lithuania;998;0;Basic;Differentiation;Partial Differentiation;First order 1352;Portugal;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1273;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 692;Portugal;182;1;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 1517;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1557;Portugal;928;0;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 1279;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1135;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 91;Lithuania;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 525;Portugal;512;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangles 165;Portugal;530;1;Basic;Integration;Double Integration;Iterate integrals,Area ,y-simple region (type I),Cartesian coordinates 37;Portugal;595;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Eigenvalue 37;Portugal;336;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Modulus of a complex number,Imaginary part 376;Portugal;349;0;Advanced;Complex Numbers;Complex Numbers;Complex plane 1028;Lithuania;148;0;Basic;Differentiation;Partial Differentiation;First order 411;Portugal;92;1;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 966;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 375;Portugal;333;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 201;Lithuania;104;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 985;Romania;665;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1379;Portugal;919;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 637;Italy;191;1;Basic;Statistics;Statistics;Median,Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance 1163;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1283;Italy;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 986;Portugal;382;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 64;Portugal;1227;0;Basic;Differentiation;Derivatives;Exponential rule 349;Portugal;753;0;Basic;Differentiation;Derivatives;Exponential rule 509;Portugal;221;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1220;Slovenia;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 884;Italy;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 955;Lithuania;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1146;Portugal;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 175;Italy;1496;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 91;Lithuania;345;1;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 168;Portugal;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 81;Lithuania;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 956;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1039;Lithuania;879;0;Basic;Differentiation;Partial Differentiation;First order,Second order 854;Italy;218;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 955;Lithuania;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 1220;Slovenia;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 637;Italy;78;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 80;Lithuania;529;0;Basic;Integration;Double Integration;Iterate integrals 1241;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1256;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1109;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 741;Ireland;81;0;Basic;Statistics;Statistics;Mean,Median,Mode 852;Italy;224;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1352;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1082;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 1158;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 457;Portugal;352;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 1517;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 1220;Slovenia;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 52;Portugal;511;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 37;Portugal;661;1;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 85;Lithuania;1132;0;Basic;Set Theory;Set Theory;Subset 1044;Lithuania;887;1;Advanced;Differentiation;Partial Differentiation;First order 1252;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 1135;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 979;Portugal;1090;1;Basic;Numerical Methods;Numerical Methods;Nonlinear equation,Newton’s method 455;Portugal;733;1;Basic;Integration;Integration Techniques;Simple integration,Direct inspection 1339;Portugal;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 700;Portugal;177;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1130;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 175;Italy;335;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 741;Ireland;947;1;Basic;Graph Theory;Graph Theory;Spanning tree,Shortest path,Path,Tree 985;Romania;274;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 690;Portugal;180;1;Basic;Statistics;Statistics;Mean,Median,Mode 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 466;Portugal;348;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Complex plane ,Real part 1135;Portugal;783;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 1220;Slovenia;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1044;Lithuania;176;0;Advanced;Differentiation;Partial Differentiation;Second order,First order 1516;Portugal;829;0;Basic;Differential Equations;Differential Equations;Linear differential equation 884;Italy;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 840;Italy;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 155;Spain;903;0;Basic;Differential Equations;Differential Equations;Separable variables equation 1379;Portugal;918;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1428;Portugal;278;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 80;Lithuania;594;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Spectrum,Characteristic polynomial,Diagonalization,Eigenvalue 1219;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 250;Lithuania;134;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 151;Portugal;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1135;Portugal;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 913;Ireland;441;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1149;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1509;Portugal;925;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 91;Lithuania;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 1220;Slovenia;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1486;Portugal;788;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 202;Lithuania;614;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1543;Portugal;1118;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 918;Portugal;876;0;Basic;Differentiation;Partial Differentiation;Directional derivative,Gradient,First order,Second order 52;Portugal;793;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 860;Italy;89;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 509;Portugal;852;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 1341;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 898;Portugal;860;0;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 168;Portugal;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 351;Portugal;752;1;Basic;Differentiation;Derivatives;Power rule,Quotient rule,Product rule,Trigonometric rules 524;Portugal;363;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 1147;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1289;Italy;432;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 913;Ireland;952;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1444;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 406;Portugal;634;0;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Inverse matrix ,Solve matrix equation,Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Commuting matrices,Determinant computation 955;Lithuania;1102;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 71;Portugal;1121;0;Basic;Differentiation;Derivatives;Trigonometric rules,Quotient rule 1077;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 165;Portugal;147;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1076;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 750;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 955;Lithuania;1109;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 851;Italy;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 174;Portugal;250;1;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Trigonometric rules 72;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 636;Italy;178;0;Basic;Statistics;Statistics;Mean,Variance,Standard deviation,Median,Mode 1538;Portugal;1087;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 26;Portugal;244;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 178;Italy;255;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Logarithmic rule 80;Lithuania;622;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 1517;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 988;Portugal;246;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1179;Portugal;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1219;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1080;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1252;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 986;Portugal;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1281;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 626;Italy;94;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 1351;Portugal;289;0;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 967;Portugal;448;1;Advanced;Linear Algebra;Vector Spaces;Subspace 1256;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 80;Lithuania;221;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1023;Lithuania;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 956;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 876;Italy;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1274;Portugal;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 397;Portugal;355;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 64;Portugal;93;1;Basic;Differentiation;Derivatives;Product rule,Logarithmic rule,Trigonometric rules 473;Portugal;347;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 175;Italy;330;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number 411;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 979;Portugal;380;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 69;Portugal;565;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonal projection,Orthogonality,Collinearity,Locus 1286;Italy;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1080;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 72;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 918;Portugal;260;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 1220;Slovenia;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1093;Portugal;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 349;Portugal;95;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule,Exponential rule 1150;Portugal;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1322;Italy;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 854;Italy;222;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1322;Italy;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1029;Lithuania;883;0;Basic;Differentiation;Partial Differentiation;First order,Directional derivative 1093;Portugal;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 181;Italy;921;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 985;Romania;612;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1517;Portugal;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 510;Portugal;786;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 524;Portugal;787;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 1220;Slovenia;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1182;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 167;Portugal;432;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 666;Portugal;204;1;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 966;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 181;Italy;919;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 166;Portugal;652;0;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 1135;Portugal;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;495;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 181;Italy;923;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1220;Slovenia;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 470;Portugal;557;1;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance 1341;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 91;Lithuania;517;0;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 91;Lithuania;516;1;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 1081;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 91;Lithuania;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1312;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 411;Portugal;332;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 375;Portugal;349;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 448;Portugal;300;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 956;Portugal;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 473;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 626;Italy;143;0;Basic;Differentiation;Derivatives;Trigonometric rules,Logarithmic rule 1093;Portugal;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 1220;Slovenia;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 142;Portugal;114;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 986;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 91;Lithuania;509;0;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 913;Ireland;451;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1157;Portugal;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 853;Italy;215;0;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 1135;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 359;Portugal;441;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span 376;Portugal;355;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 1220;Slovenia;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 955;Lithuania;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 81;Lithuania;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 420;Portugal;639;0;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Determinant computation,Determinant properties,Matrix operations 509;Portugal;948;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 72;Portugal;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 692;Portugal;184;0;Basic;Statistics;Statistics;Frequency,Sample,Stem and Leaf diagram,Variance,Standard deviation,Relative frequency 142;Portugal;666;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 90;Lithuania;130;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 175;Italy;1089;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 967;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 599;Italy;857;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Diagonalization,Spectrum,Characteristic polynomial 689;Portugal;865;0;Basic;Optimization;Nonlinear Optimization;Lagrange multipliers,Minimum,Maximum,Stationary point 986;Portugal;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 1487;Portugal;255;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Logarithmic rule 751;Lithuania;571;1;Basic;Analytic Geometry;Analytic Geometry;Intersection,Cartesian equations of a plane 524;Portugal;497;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 966;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1023;Lithuania;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 80;Lithuania;504;0;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 90;Lithuania;633;0;Advanced;Linear Algebra;Matrices and Determinants;Matrix equivalent - echelon,Matrix rank,Matrix operations,Hermitian matrix,Matrix multiplication,Symmetric matrix,Linearly independent rows,Commuting matrices,Determinant computation,Determinant properties,Inverse matrix ,Solve matrix equation 667;Portugal;184;1;Basic;Statistics;Statistics;Frequency,Sample,Stem and Leaf diagram,Variance,Standard deviation,Relative frequency 394;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 899;Lithuania;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 1148;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1173;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 748;Portugal;480;0;Basic;Graph Theory;Graph Theory;Planar graph 972;Portugal;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1252;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1079;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 776;Portugal;555;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality,Locus,Distance 634;Italy;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1080;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1271;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1087;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1049;Lithuania;875;0;Basic;Differentiation;Partial Differentiation;Gradient,First order 885;Italy;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1044;Lithuania;258;1;Basic;Differentiation;Partial Differentiation;First order,Gradient 1511;Portugal;549;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Cross product,Orthogonality 1132;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 128;Lithuania;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1288;Portugal;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 359;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 178;Italy;144;0;Basic;Differentiation;Derivatives;Trigonometric rules 1269;Portugal;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1289;Italy;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 1322;Italy;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1220;Slovenia;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1517;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1150;Portugal;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 168;Portugal;405;1;Advanced;Integration;Integration Techniques;Rational functions 1024;Lithuania;260;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 1286;Italy;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 26;Portugal;159;1;Basic;Differential Equations;Differential Equations;Linear differential equation,Integral curve,Cauchy problem 26;Portugal;835;1;Basic;Differential Equations;Differential Equations;Exact differential form,Cauchy problem 510;Portugal;219;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 378;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 955;Lithuania;1103;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1220;Slovenia;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 769;Portugal;327;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1220;Slovenia;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1517;Portugal;624;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 1565;Portugal;680;0;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 1564;Portugal;723;0;Basic;Integration;Integration Techniques;Substitution 1286;Italy;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 91;Lithuania;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 181;Italy;918;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1220;Slovenia;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1146;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 851;Italy;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 26;Portugal;157;1;Basic;Differential Equations;Differential Equations;Homogeneous equation,Cauchy problem 986;Portugal;448;1;Advanced;Linear Algebra;Vector Spaces;Subspace 1023;Lithuania;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 988;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 525;Portugal;90;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1158;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 394;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 37;Portugal;495;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1085;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1220;Slovenia;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1195;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1324;Italy;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 966;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 956;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1219;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1220;Slovenia;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 175;Italy;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1146;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1182;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 26;Portugal;168;1;Basic;Differential Equations;Differential Equations;Linear differential equation 168;Portugal;289;0;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 899;Lithuania;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1291;Italy;777;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 625;Russian Federation;794;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 168;Portugal;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1334;Portugal;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 349;Portugal;94;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 81;Lithuania;554;0;Basic;Analytic Geometry;Analytic Geometry;Scalar product,Orthogonality,Orthogonal projection,Distance 403;Portugal;349;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 26;Portugal;888;0;Basic;Differential Equations;Differential Equations;Linear differential equation 1253;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1140;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1156;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 591;Portugal;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 966;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 884;Italy;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 969;Romania;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1286;Italy;455;1;Basic;Linear Algebra;Vector Spaces;Basis 955;Lithuania;1098;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 411;Portugal;125;0;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Symmetric matrix,Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication 1157;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 592;Portugal;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1220;Slovenia;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1032;Lithuania;885;0;Basic;Differentiation;Partial Differentiation;Second order,First order 1517;Portugal;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 163;Portugal;332;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 853;Italy;949;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1333;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 1505;Portugal;959;1;Basic;Optimization;Linear Optimization;Linear programming 1220;Slovenia;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1483;Portugal;335;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 884;Italy;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 37;Portugal;960;0;Basic;Optimization;Nonlinear Optimization;Linear programming 1252;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 524;Portugal;112;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1158;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 890;Portugal;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 174;Portugal;729;1;Basic;Differentiation;Derivatives;Quotient rule 176;Italy;102;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 37;Portugal;401;1;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 576;Ireland;567;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a line,Orthogonality,Collinearity 359;Portugal;345;1;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 80;Lithuania;1003;0;Basic;Optimization;Linear Optimization;Linear programming 1024;Lithuania;999;0;Basic;Differentiation;Partial Differentiation;First order 351;Portugal;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1322;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1219;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 181;Italy;918;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 986;Portugal;385;1;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 168;Portugal;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 64;Portugal;698;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Distance 1082;Portugal;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 69;Portugal;701;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product,Distance 175;Italy;337;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 1179;Portugal;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1044;Lithuania;912;1;Basic;Differentiation;Partial Differentiation;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 26;Portugal;146;1;Basic;Differential Equations;Differential Equations;Separable variables equation 884;Italy;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 419;Portugal;326;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 1402;Portugal;306;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 592;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 855;Italy;228;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 633;Italy;430;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 470;Portugal;568;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 351;Portugal;721;0;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules 168;Portugal;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 91;Lithuania;455;1;Basic;Linear Algebra;Vector Spaces;Basis 972;Portugal;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 467;Portugal;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 1289;Italy;454;1;Basic;Linear Algebra;Vector Spaces;Basis 1220;Slovenia;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 422;Portugal;652;1;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 552;Portugal;562;0;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 448;Portugal;295;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 1029;Lithuania;256;0;Basic;Differentiation;Partial Differentiation;First order 1481;Portugal;553;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Distance,Scalar product 1322;Italy;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 168;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1505;Portugal;81;1;Basic;Statistics;Statistics;Mean,Median,Mode 1220;Slovenia;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 203;Lithuania;666;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 163;Portugal;326;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 1150;Portugal;381;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 41;Portugal;104;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 457;Portugal;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 406;Portugal;368;1;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids,Regular polygon 151;Portugal;118;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 466;Portugal;354;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 91;Lithuania;364;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 972;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 956;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1179;Portugal;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1147;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 511;Portugal;216;0;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 884;Italy;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1150;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1290;Italy;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 420;Portugal;326;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 986;Portugal;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1533;Portugal;552;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product 966;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1288;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 966;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 988;Portugal;89;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 91;Lithuania;334;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 1219;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 167;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1340;Portugal;1092;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 969;Romania;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 625;Russian Federation;667;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 552;Portugal;889;1;Basic;Differential Equations;Differential Equations;Linear differential equation 1220;Slovenia;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 204;Lithuania;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 28;Portugal;337;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 1079;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1288;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1080;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 899;Lithuania;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1023;Lithuania;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 483;Portugal;464;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometrical figures 69;Portugal;556;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line,Collinearity 1148;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 351;Portugal;794;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1289;Italy;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 966;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1311;Italy;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 884;Italy;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 634;Italy;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1286;Italy;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1284;Italy;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 374;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1274;Portugal;796;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 1542;Portugal;1107;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 394;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 380;Portugal;1004;1;Basic;Optimization;Nonlinear Optimization;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 1288;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 174;Portugal;143;0;Basic;Differentiation;Derivatives;Trigonometric rules,Logarithmic rule 625;Russian Federation;366;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 1082;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 890;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 80;Lithuania;741;0;Basic;Optimization;Linear Optimization;Graphical method,Linear programming 1220;Slovenia;454;1;Basic;Linear Algebra;Vector Spaces;Basis 426;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1420;Portugal;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1220;Slovenia;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1044;Lithuania;998;0;Basic;Differentiation;Partial Differentiation;First order 36;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 625;Russian Federation;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1290;Italy;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1150;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1023;Lithuania;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1289;Italy;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 200;Lithuania;118;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;455;0;Basic;Linear Algebra;Vector Spaces;Basis 899;Lithuania;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1557;Portugal;675;0;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 1352;Portugal;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 36;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 986;Portugal;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 1076;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 525;Portugal;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 37;Portugal;699;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Locus,Intersection,Cartesian equations of a line 1082;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1146;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 189;Portugal;512;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangles 972;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 955;Lithuania;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 898;Portugal;778;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 510;Portugal;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 61;Portugal;159;1;Basic;Differential Equations;Differential Equations;Linear differential equation,Integral curve,Cauchy problem 351;Portugal;793;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 1274;Portugal;789;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1026;Lithuania;269;0;Basic;Differentiation;Partial Differentiation;First order,Second order 181;Italy;922;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 965;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 311;Ireland;636;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 1288;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 239;Lithuania;95;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule,Exponential rule 403;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 776;Portugal;574;0;Advanced;Analytic Geometry;Analytic Geometry;Collinearity,Orthogonality,Distance,Scalar product 1220;Slovenia;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1324;Italy;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 168;Portugal;679;0;Basic;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 168;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 80;Lithuania;328;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 176;Italy;925;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 884;Italy;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 876;Italy;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1286;Italy;455;0;Basic;Linear Algebra;Vector Spaces;Basis 91;Lithuania;513;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 966;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 851;Italy;1005;1;Basic;Optimization;Nonlinear Optimization;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 972;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1220;Slovenia;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 473;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 483;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 876;Italy;455;0;Basic;Linear Algebra;Vector Spaces;Basis 1023;Lithuania;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1182;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 394;Portugal;419;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 394;Portugal;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 69;Portugal;569;1;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance,Scalar product,Cross product,Orthogonality,Collinearity 387;Portugal;448;1;Advanced;Linear Algebra;Vector Spaces;Subspace 26;Portugal;834;1;Basic;Differential Equations;Differential Equations;Linear differential equation 1543;Portugal;1119;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 591;Portugal;330;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number 1220;Slovenia;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 598;Italy;122;1;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 775;Portugal;773;0;Basic;Probability ;Probability ;Event,Sample space,Addition, multiplication, and total probability rules,Axioms of probability 1076;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1022;Lithuania;736;0;Basic;Optimization;Linear Optimization;Linear programming,Excel solver add-in,Simplex method 91;Lithuania;311;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 177;Italy;734;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Exponential rule 750;Portugal;922;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1444;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1147;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 576;Ireland;557;1;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance 1274;Portugal;114;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1143;Portugal;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 731;Portugal;202;0;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 1321;Portugal;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1076;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 175;Italy;1114;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 854;Italy;216;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 1322;Italy;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1220;Slovenia;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 37;Portugal;1197;1;Basic;Integration;Definite Integrals;Area of a planar region ,Fundamental theorem of Calculus 972;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 853;Italy;961;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Homogeneous system,Consistent system 1481;Portugal;556;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line,Collinearity 1517;Portugal;380;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1049;Lithuania;93;0;Basic;Differentiation;Derivatives;Product rule,Logarithmic rule,Trigonometric rules 455;Portugal;122;0;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 1516;Portugal;164;0;Basic;Differential Equations;Differential Equations;Separable variables equation 1195;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 168;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 625;Russian Federation;497;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1143;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 753;Italy;998;0;Basic;Differentiation;Partial Differentiation;First order 1271;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1256;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 483;Portugal;371;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Geometrical figures 1557;Portugal;87;0;Advanced;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 890;Portugal;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 26;Portugal;1128;1;Basic;Set Theory;Set Theory;Subset 851;Italy;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1220;Slovenia;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 657;Ireland;79;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 80;Lithuania;254;1;Basic;Differentiation;Derivatives;Logarithmic rule,Power rule,Trigonometric rules 1289;Italy;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1109;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 26;Portugal;701;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product,Distance 1109;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 972;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 598;Italy;91;0;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 37;Portugal;353;1;Basic;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 1149;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 374;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 913;Ireland;1094;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1363;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1220;Slovenia;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 26;Portugal;1146;1;Basic;Set Theory;Set Theory;Subset 955;Lithuania;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1220;Slovenia;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 174;Portugal;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 955;Lithuania;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1525;Portugal;760;0;Basic;Probability ;Probability ;Event,Sample space,Addition, multiplication, and total probability rules,Axioms of probability 1322;Italy;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 37;Portugal;963;1;Basic;Optimization;Nonlinear Optimization;Simplex method,Duality theory 1179;Portugal;650;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 1289;Italy;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1044;Lithuania;267;0;Basic;Differentiation;Partial Differentiation;First order,Second order 1542;Portugal;1117;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 899;Lithuania;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 411;Portugal;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 176;Italy;721;1;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules 1087;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1081;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1311;Italy;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1339;Portugal;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1557;Portugal;684;0;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Domain 1338;Portugal;783;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 1291;Italy;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1272;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1220;Slovenia;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 840;Italy;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 411;Portugal;334;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 239;Lithuania;275;1;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 899;Lithuania;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 473;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 913;Ireland;439;1;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 1044;Lithuania;881;1;Advanced;Differentiation;Partial Differentiation;Directional derivative,Gradient 1076;Portugal;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 455;Portugal;645;1;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 986;Portugal;419;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 955;Lithuania;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1244;Portugal;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 966;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 163;Portugal;338;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 1256;Portugal;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1022;Lithuania;861;0;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 72;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1244;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 633;Italy;128;1;Advanced;Linear Algebra;Matrices and Determinants;Matrix multiplication,Determinant computation,Determinant properties,Symmetric matrix,Hermitian matrix,Inverse matrix ,Linearly independent rows,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Matrix equivalent - echelon 1147;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 176;Italy;922;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 955;Lithuania;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 91;Lithuania;359;1;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 1291;Italy;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 913;Ireland;1086;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 955;Lithuania;455;0;Basic;Linear Algebra;Vector Spaces;Basis 1135;Portugal;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 913;Ireland;1104;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1219;Portugal;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1149;Portugal;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 646;Ireland;187;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 913;Ireland;186;1;Basic;Statistics;Statistics;Population,Sample 465;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 955;Lithuania;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 876;Italy;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 840;Italy;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 380;Portugal;818;0;Basic;Optimization;Nonlinear Optimization;Minimum,Maximum,Stationary point,Second derivative test,Unconstrained optimization,Saddle point,Optimal solution 1256;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 741;Ireland;202;0;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 1150;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 71;Portugal;255;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Logarithmic rule 218;Lithuania;113;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 468;Portugal;355;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 1505;Portugal;744;1;Basic;Optimization;Linear Optimization;Excel solver add-in,Simplex method,Linear programming 1288;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 913;Ireland;231;1;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system,Solution of linear system 1220;Slovenia;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 151;Portugal;104;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 470;Portugal;348;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Complex plane ,Real part 1271;Portugal;381;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 394;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1339;Portugal;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 168;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 468;Portugal;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 851;Italy;1016;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 1517;Portugal;777;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 511;Portugal;647;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations 483;Portugal;883;0;Basic;Differentiation;Partial Differentiation;First order,Directional derivative 1220;Slovenia;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 198;Italy;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1023;Lithuania;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 899;Lithuania;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 411;Portugal;192;0;Basic;Integration;Integration Techniques;Trigonometric substitution,Simple integration 85;Lithuania;1127;1;Basic;Set Theory;Set Theory;Union of sets,Venn diagram,Complement of a set 985;Romania;113;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 464;Portugal;351;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 876;Italy;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 359;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 80;Lithuania;282;1;Basic;Optimization;Linear Optimization;Linear programming 1283;Italy;454;0;Basic;Linear Algebra;Vector Spaces;Basis 851;Italy;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1308;Italy;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 26;Portugal;1162;1;Basic;Set Theory;Set Theory;Subset 1557;Portugal;983;0;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 524;Portugal;614;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 511;Portugal;646;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Commuting matrices,Solve matrix equation,Determinant computation,Inverse matrix ,Matrix rank,Determinant properties,Matrix multiplication,Symmetric matrix 80;Lithuania;334;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 1080;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1179;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1220;Slovenia;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 988;Portugal;91;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 128;Lithuania;125;0;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Symmetric matrix,Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication 720;Portugal;186;1;Basic;Statistics;Statistics;Population,Sample 1179;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 376;Portugal;1056;0;Advanced;Complex Numbers;Complex Numbers;Complex plane 969;Romania;430;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 955;Lithuania;1106;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 899;Lithuania;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 64;Portugal;668;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 72;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1080;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 128;Lithuania;335;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 898;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1487;Portugal;734;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Exponential rule 81;Lithuania;795;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 1322;Italy;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 175;Italy;330;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number 1428;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1024;Lithuania;267;0;Basic;Differentiation;Partial Differentiation;First order,Second order 414;Portugal;243;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1220;Slovenia;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1023;Lithuania;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 483;Portugal;524;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Rhombus 576;Ireland;697;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Distance,Cross product 750;Portugal;920;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 407;Portugal;496;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1543;Portugal;1109;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 1564;Portugal;412;0;Basic;Integration;Integration Techniques;Power of trigonometric functions 986;Portugal;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1146;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 576;Ireland;335;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 827;Italy;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 376;Portugal;352;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 80;Lithuania;552;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product 876;Italy;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1252;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 967;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 168;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 985;Romania;668;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 899;Lithuania;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 636;Italy;184;0;Basic;Statistics;Statistics;Frequency,Sample,Stem and Leaf diagram,Variance,Standard deviation,Relative frequency 1322;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1192;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 422;Portugal;329;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 351;Portugal;795;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 359;Portugal;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 465;Portugal;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 884;Italy;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1087;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 860;Italy;230;0;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1284;Italy;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 203;Lithuania;665;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1481;Portugal;294;0;Basic;Probability ;Probability ;Event,Axioms of probability,Sample space 1334;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 351;Portugal;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 181;Italy;923;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 913;Ireland;177;1;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 37;Portugal;1105;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1195;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1557;Portugal;688;1;Advanced;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 1220;Slovenia;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 380;Portugal;355;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 988;Portugal;430;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1150;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 483;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 884;Italy;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1291;Italy;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 683;Ireland;186;1;Basic;Statistics;Statistics;Population,Sample 956;Portugal;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1505;Portugal;957;1;Basic;Optimization;Linear Optimization;Linear programming 973;Portugal;948;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 1149;Portugal;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 751;Lithuania;558;0;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 466;Portugal;348;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Complex plane ,Real part 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1077;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 351;Portugal;666;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1148;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 899;Lithuania;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1220;Slovenia;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1220;Slovenia;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1332;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1525;Portugal;747;0;Advanced;Optimization;Linear Optimization;Duality theory,Excel solver add-in,Simplex method,Linear programming,Sensitivity analysis,Postoptimality analysis 913;Ireland;187;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 175;Italy;1061;0;Basic;Complex Numbers;Complex Numbers;Complex plane 26;Portugal;1149;0;Basic;Set Theory;Set Theory;Subset 955;Lithuania;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 511;Portugal;793;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 1146;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1517;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 85;Lithuania;1163;1;Basic;Set Theory;Set Theory;Subset 37;Portugal;406;1;Basic;Integration;Integration Techniques;Direct inspection 876;Italy;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1077;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 311;Ireland;138;0;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Determinant computation,Determinant properties,Inverse matrix 1273;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 840;Italy;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 91;Lithuania;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1220;Slovenia;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1158;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1561;Portugal;403;0;Advanced;Integration;Integration Techniques;Rational functions 1220;Slovenia;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 41;Portugal;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1244;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1509;Portugal;682;1;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 91;Lithuania;493;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangles,Triangle inequality 1220;Slovenia;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1269;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 851;Italy;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 972;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1179;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1220;Slovenia;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 913;Ireland;223;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1220;Slovenia;454;0;Basic;Linear Algebra;Vector Spaces;Basis 380;Portugal;862;1;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 840;Italy;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 955;Lithuania;1089;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 1252;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 128;Lithuania;342;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 457;Portugal;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1518;Portugal;644;1;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Determinant computation,Matrix rank,Inverse matrix ,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 827;Italy;644;0;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Determinant computation,Matrix rank,Inverse matrix ,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 37;Portugal;881;1;Advanced;Differentiation;Partial Differentiation;Directional derivative,Gradient 1071;Lithuania;455;1;Basic;Linear Algebra;Vector Spaces;Basis 71;Portugal;667;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 80;Lithuania;220;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 851;Italy;861;0;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 1256;Portugal;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 465;Portugal;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 851;Italy;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 852;Italy;239;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1147;Portugal;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 200;Lithuania;399;1;Basic;Integration;Integration Techniques;Substitution,Direct inspection,Simple integration 667;Portugal;81;1;Basic;Statistics;Statistics;Mean,Median,Mode 81;Lithuania;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 955;Lithuania;292;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 969;Romania;448;0;Advanced;Linear Algebra;Vector Spaces;Subspace 510;Portugal;217;0;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 1486;Portugal;795;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 969;Romania;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1220;Slovenia;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 91;Lithuania;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 955;Lithuania;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1143;Portugal;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 660;Portugal;188;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 626;Italy;253;0;Basic;Differentiation;Derivatives;Logarithmic rule,Trigonometric rules 420;Portugal;644;0;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Determinant computation,Matrix rank,Inverse matrix ,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 91;Lithuania;522;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Triangles 600;Italy;224;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 509;Portugal;137;1;Basic;Linear Algebra;Matrices and Determinants;Matrix equivalent - echelon,Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Linearly independent rows,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 378;Portugal;701;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product,Distance 1339;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 91;Lithuania;358;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 918;Portugal;95;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule,Exponential rule 466;Portugal;354;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 1147;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 972;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 204;Lithuania;786;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1036;Lithuania;260;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 1289;Italy;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1339;Portugal;427;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 775;Portugal;304;1;Basic;Probability ;Probability ;Addition, multiplication, and total probability rules,Sample space,Event,Axioms of probability 913;Ireland;952;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 91;Lithuania;503;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 1080;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 91;Lithuania;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 918;Portugal;391;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 1274;Portugal;788;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 177;Italy;787;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 1273;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 80;Lithuania;464;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometrical figures 1282;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1543;Portugal;1098;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 167;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 91;Lithuania;371;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Geometrical figures 1229;Portugal;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1538;Portugal;1117;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 85;Lithuania;1124;0;Basic;Set Theory;Set Theory;Integration by parts,Substitution,Simple integration,Direct inspection 884;Italy;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1179;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 647;Ireland;81;0;Basic;Statistics;Statistics;Mean,Median,Mode 1146;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1379;Portugal;611;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1271;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 509;Portugal;223;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1352;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 690;Portugal;186;0;Basic;Statistics;Statistics;Population,Sample 953;Lithuania;183;0;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 1220;Slovenia;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 359;Portugal;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1043;Lithuania;412;0;Basic;Integration;Integration Techniques;Power of trigonometric functions 80;Lithuania;493;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangles,Triangle inequality 876;Italy;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 854;Italy;231;1;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system,Solution of linear system 524;Portugal;104;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 81;Lithuania;551;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality 1220;Slovenia;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1081;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 624;Portugal;114;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 351;Portugal;272;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 988;Portugal;91;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 625;Russian Federation;667;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 175;Italy;1112;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 387;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1197;Slovenia;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 955;Lithuania;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 468;Portugal;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1275;Lithuania;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1029;Lithuania;260;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 898;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1516;Portugal;903;1;Basic;Differential Equations;Differential Equations;Separable variables equation 1322;Italy;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1229;Portugal;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1275;Lithuania;424;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1299;Italy;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 525;Portugal;120;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 855;Italy;216;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 509;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 393;Lithuania;354;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 81;Lithuania;559;0;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 426;Portugal;350;0;Advanced;Complex Numbers;Complex Numbers;Complex plane 311;Ireland;639;1;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Determinant computation,Determinant properties,Matrix operations 91;Lithuania;456;1;Advanced;Fundamental Mathematics;Elementary Geometry;Triangles 511;Portugal;243;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 455;Portugal;127;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Determinant computation,Determinant properties,Symmetric matrix,Inverse matrix ,Linearly independent rows,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank 1157;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 898;Portugal;1005;0;Basic;Optimization;Nonlinear Optimization;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 1157;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 344;Portugal;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 41;Portugal;159;1;Basic;Differential Equations;Differential Equations;Linear differential equation,Integral curve,Cauchy problem 854;Italy;917;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1322;Italy;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 700;Portugal;185;1;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 1023;Lithuania;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 411;Portugal;326;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 426;Portugal;346;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 414;Portugal;234;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 168;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1219;Portugal;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 913;Ireland;1090;1;Basic;Numerical Methods;Numerical Methods;Nonlinear equation,Newton’s method 71;Portugal;1087;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 80;Lithuania;245;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 239;Lithuania;144;1;Basic;Differentiation;Derivatives;Trigonometric rules 955;Lithuania;1096;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 151;Portugal;112;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 988;Portugal;439;0;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 67;Portugal;185;1;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 1319;Italy;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 852;Italy;233;0;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 1220;Slovenia;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 955;Lithuania;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 403;Portugal;357;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 769;Portugal;332;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1275;Lithuania;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1542;Portugal;1102;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 37;Portugal;604;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector,Spectrum,Characteristic polynomial 955;Lithuania;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 634;Italy;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 376;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1286;Italy;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 359;Portugal;367;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures 1271;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 26;Portugal;952;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1252;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 414;Portugal;948;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 1093;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 855;Italy;230;0;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 913;Ireland;204;1;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 1220;Slovenia;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 168;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1402;Portugal;777;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 422;Portugal;331;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1279;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 898;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1140;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 509;Portugal;223;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 28;Portugal;557;1;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance 965;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 973;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1479;Portugal;964;1;Basic;Optimization;Nonlinear Optimization;Simplex method,Duality theory 625;Russian Federation;514;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 57;Portugal;185;0;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 1552;Portugal;719;0;Basic;Integration;Integration Techniques;Integration by parts 1284;Italy;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 41;Portugal;79;1;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 26;Portugal;828;1;Basic;Differential Equations;Differential Equations;Linear differential equation 852;Italy;215;0;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 524;Portugal;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1135;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 966;Portugal;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 378;Portugal;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 1130;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 675;Portugal;79;1;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 576;Ireland;556;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line,Collinearity 986;Portugal;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 81;Lithuania;362;1;Basic;Graph Theory;Graph Theory;Simple graph 1023;Lithuania;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 41;Portugal;342;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 1147;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1247;Portugal;642;0;Basic;Linear Algebra;Matrices and Determinants;Symmetric matrix,Matrix multiplication,Matrix operations 851;Italy;1208;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 406;Portugal;244;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 168;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1542;Portugal;1108;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 1023;Lithuania;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 91;Lithuania;364;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 969;Romania;424;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 387;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 647;Ireland;77;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 483;Portugal;614;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 174;Portugal;255;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Logarithmic rule 955;Lithuania;1096;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 28;Portugal;573;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Locus,Scalar product,Cross product,Collinearity 91;Lithuania;522;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Triangles 1220;Slovenia;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1039;Lithuania;258;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 955;Lithuania;1112;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1220;Slovenia;454;0;Basic;Linear Algebra;Vector Spaces;Basis 851;Italy;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 700;Portugal;211;1;Basic;Statistics;Statistics;Linear regression 1194;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 884;Italy;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1308;Italy;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 406;Portugal;640;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 91;Lithuania;504;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 1286;Italy;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 28;Portugal;700;1;Basic;Analytic Geometry;Analytic Geometry;Collinearity,Locus,Orthogonality,Orthogonal projection,Scalar product,Distance 168;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 175;Italy;798;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1308;Italy;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 851;Italy;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 26;Portugal;1151;0;Basic;Set Theory;Set Theory;Subset 128;Lithuania;329;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1220;Slovenia;455;1;Basic;Linear Algebra;Vector Spaces;Basis 913;Ireland;1099;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1173;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 483;Portugal;624;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 1308;Italy;454;0;Basic;Linear Algebra;Vector Spaces;Basis 651;Ireland;182;0;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 990;Portugal;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 509;Portugal;594;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Spectrum,Characteristic polynomial,Diagonalization,Eigenvalue 483;Portugal;447;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1564;Portugal;401;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 168;Portugal;392;1;Advanced;Integration;Integration Techniques;Substitution 1220;Slovenia;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1411;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 167;Portugal;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1352;Portugal;306;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 72;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1179;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1352;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1525;Portugal;491;0;Advanced;Probability ;Probability ;Addition, multiplication, and total probability rules,Independence,Event 374;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 168;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 510;Portugal;92;0;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 979;Portugal;1113;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 693;Portugal;180;1;Basic;Statistics;Statistics;Mean,Median,Mode 36;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 411;Portugal;620;0;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 168;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 415;Portugal;139;0;Advanced;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication,Determinant computation,Determinant properties 1150;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1146;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 979;Portugal;1113;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 359;Portugal;356;1;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers 600;Italy;222;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1220;Slovenia;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 986;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1185;Portugal;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 344;Portugal;796;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 511;Portugal;952;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1379;Portugal;118;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1516;Portugal;165;1;Basic;Differential Equations;Differential Equations;Linear differential equation,Homogeneous equation 168;Portugal;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 598;Italy;229;0;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 411;Portugal;127;0;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Determinant computation,Determinant properties,Symmetric matrix,Inverse matrix ,Linearly independent rows,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank 1375;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 1196;Slovenia;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1050;Lithuania;878;0;Basic;Differentiation;Partial Differentiation;Second order,First order 1481;Portugal;413;0;Basic;Integration;Integration Techniques;Direct inspection 1292;Italy;617;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Spectrum,Eigenvector,Characteristic polynomial 406;Portugal;89;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1220;Slovenia;455;1;Basic;Linear Algebra;Vector Spaces;Basis 509;Portugal;949;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 548;Portugal;304;0;Basic;Probability ;Probability ;Addition, multiplication, and total probability rules,Sample space,Event,Axioms of probability 1517;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 151;Portugal;108;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1564;Portugal;721;0;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules 509;Portugal;127;0;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Determinant computation,Determinant properties,Symmetric matrix,Inverse matrix ,Linearly independent rows,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank 986;Portugal;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 913;Ireland;179;1;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1241;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1229;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 466;Portugal;359;0;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 378;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1322;Italy;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 988;Portugal;224;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 967;Portugal;778;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 851;Italy;1246;0;Basic;Optimization;Nonlinear Optimization;Unconstrained optimization,Second derivative test,Optimal solution 973;Portugal;88;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 72;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1241;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 175;Italy;1093;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1479;Portugal;1208;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 1220;Slovenia;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 890;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1146;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 387;Portugal;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 36;Portugal;278;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1352;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1525;Portugal;743;0;Basic;Optimization;Linear Optimization;Duality theory,Linear programming 1427;Portugal;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 168;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 37;Portugal;1229;0;Basic;Differentiation;Partial Differentiation;First order 41;Portugal;572;1;Basic;Analytic Geometry;Analytic Geometry;Locus,Scalar product,Cross product,Distance,Collinearity,Orthogonality 1511;Portugal;567;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a line,Orthogonality,Collinearity 876;Italy;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 852;Italy;231;1;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system,Solution of linear system 1312;Portugal;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1525;Portugal;1010;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum 483;Portugal;333;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 966;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1044;Lithuania;260;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 750;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 168;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 666;Portugal;177;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 151;Portugal;114;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 510;Portugal;113;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 600;Italy;645;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 91;Lithuania;714;0;Basic;Integration;Integration Techniques;Simple integration,Direct inspection 80;Lithuania;658;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 168;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 359;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 71;Portugal;729;0;Basic;Differentiation;Derivatives;Quotient rule 1087;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 168;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 986;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 634;Italy;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 91;Lithuania;496;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 972;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 860;Italy;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1037;Lithuania;148;0;Basic;Differentiation;Partial Differentiation;First order 37;Portugal;1072;1;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule 448;Portugal;491;1;Advanced;Probability ;Probability ;Addition, multiplication, and total probability rules,Independence,Event 1220;Slovenia;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 982;Portugal;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1286;Italy;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 750;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 851;Italy;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1292;Italy;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 913;Ireland;427;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 483;Portugal;752;1;Basic;Differentiation;Derivatives;Power rule,Quotient rule,Product rule,Trigonometric rules 913;Ireland;316;0;Basic;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 1220;Slovenia;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 69;Portugal;566;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Orthogonality,Locus 72;Portugal;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 852;Italy;243;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1219;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 661;Portugal;181;1;Basic;Statistics;Statistics;Quantile,Frequency,Sample,Mean,Variance,Standard deviation,Median,Mode 465;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1487;Portugal;332;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 420;Portugal;332;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1023;Lithuania;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 411;Portugal;622;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 679;Portugal;188;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 1220;Slovenia;455;1;Basic;Linear Algebra;Vector Spaces;Basis 420;Portugal;339;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 634;Italy;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 168;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 598;Italy;136;1;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 840;Italy;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1564;Portugal;84;1;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 168;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 986;Portugal;439;0;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 967;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 37;Portugal;665;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1564;Portugal;685;1;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 1220;Slovenia;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1146;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 80;Lithuania;703;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Scalar product 988;Portugal;229;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 81;Lithuania;699;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Locus,Intersection,Cartesian equations of a line 853;Italy;948;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 411;Portugal;596;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Eigenvalue 1130;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 885;Italy;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1023;Lithuania;455;1;Basic;Linear Algebra;Vector Spaces;Basis 483;Portugal;788;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 71;Portugal;571;1;Basic;Analytic Geometry;Analytic Geometry;Intersection,Cartesian equations of a plane 37;Portugal;1033;0;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule,First order 351;Portugal;108;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 693;Portugal;177;1;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1220;Slovenia;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 509;Portugal;125;1;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Symmetric matrix,Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication 885;Italy;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1077;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1095;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1087;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 28;Portugal;223;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 750;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1561;Portugal;309;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 403;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 80;Lithuania;571;1;Basic;Analytic Geometry;Analytic Geometry;Intersection,Cartesian equations of a plane 483;Portugal;352;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 155;Spain;870;1;Basic;Differential Equations;Differential Equations;Homogeneous equation 457;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1504;Portugal;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1220;Slovenia;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1220;Slovenia;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 689;Portugal;866;1;Basic;Optimization;Nonlinear Optimization;Stationary point,Maximum,Saddle point,Optimal solution,Minimum 972;Portugal;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 81;Lithuania;481;0;Advanced;Graph Theory;Graph Theory;Path,Simple graph,Cycle and circuit 683;Ireland;182;1;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 851;Italy;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 552;Portugal;891;0;Basic;Differential Equations;Differential Equations;Linear differential equation 168;Portugal;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 37;Portugal;155;1;Basic;Optimization;Nonlinear Optimization;Lagrange multipliers,Maximum,Minimum 91;Lithuania;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 884;Italy;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1487;Portugal;720;1;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules,Logarithmic rule,Product rule 599;Italy;623;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 851;Italy;818;1;Basic;Optimization;Nonlinear Optimization;Minimum,Maximum,Stationary point,Second derivative test,Unconstrained optimization,Saddle point,Optimal solution 41;Portugal;506;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 986;Portugal;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 890;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 855;Italy;949;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 884;Italy;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 853;Italy;233;0;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 168;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 175;Italy;1526;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Linear equations,Quadratic equations,Simplify expressions 1087;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 175;Italy;1104;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 71;Portugal;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1109;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1252;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1322;Italy;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 669;Portugal;183;0;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 91;Lithuania;511;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 969;Romania;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 351;Portugal;730;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 80;Lithuania;514;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 80;Lithuania;280;1;Basic;Optimization;Linear Optimization;Linear programming 1557;Portugal;684;1;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Domain 1308;Italy;455;0;Basic;Linear Algebra;Vector Spaces;Basis 37;Portugal;887;1;Advanced;Differentiation;Partial Differentiation;First order 1219;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 658;Ireland;193;1;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 1220;Slovenia;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1244;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1146;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1525;Portugal;767;0;Basic;Probability ;Probability ;Event,Sample space 168;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1147;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 387;Portugal;446;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 28;Portugal;546;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonal projection,Distance,Cross product,Orthogonality 407;Portugal;786;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 885;Italy;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 725;Portugal;185;0;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 1022;Lithuania;1004;0;Basic;Optimization;Nonlinear Optimization;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 1146;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 468;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1271;Portugal;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 1081;Portugal;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 552;Portugal;576;0;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 1220;Slovenia;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 41;Portugal;193;0;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 26;Portugal;565;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonal projection,Orthogonality,Collinearity,Locus 1241;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 67;Portugal;79;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 174;Portugal;342;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 1044;Lithuania;261;1;Basic;Differentiation;Partial Differentiation;First order,Gradient 1525;Portugal;750;0;Advanced;Optimization;Linear Optimization;Sensitivity analysis,Postoptimality analysis,Duality theory,Excel solver add-in,Simplex method,Linear programming 376;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 457;Portugal;346;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 26;Portugal;829;0;Basic;Differential Equations;Differential Equations;Linear differential equation 1279;Portugal;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 972;Portugal;783;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 1229;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 168;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 37;Portugal;872;0;Basic;Differential Equations;Differential Equations;Linear differential equation 374;Portugal;853;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 378;Portugal;571;0;Basic;Analytic Geometry;Analytic Geometry;Intersection,Cartesian equations of a plane 380;Portugal;1015;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 885;Italy;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 509;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 37;Portugal;1013;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 899;Lithuania;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 899;Lithuania;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 576;Ireland;554;0;Basic;Analytic Geometry;Analytic Geometry;Scalar product,Orthogonality,Orthogonal projection,Distance 625;Russian Federation;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 625;Russian Federation;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 37;Portugal;1203;1;Basic;Integration;Definite Integrals;Volume of revolution,Fundamental theorem of Calculus 1087;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1284;Italy;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 664;Portugal;204;1;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 1132;Portugal;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1505;Portugal;965;0;Basic;Optimization;Linear Optimization;Excel solver add-in,Simplex method,Linear programming,Transportation problem 956;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 955;Lithuania;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 955;Lithuania;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1023;Lithuania;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1542;Portugal;1088;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 1375;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1093;Portugal;783;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 28;Portugal;547;0;Basic;Analytic Geometry;Analytic Geometry;Cross product,Orthogonality,Scalar product 955;Lithuania;1113;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1538;Portugal;1086;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 1281;Portugal;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1284;Italy;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 769;Portugal;326;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 1517;Portugal;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1047;Lithuania;999;0;Basic;Differentiation;Partial Differentiation;First order 966;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 155;Spain;96;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 71;Portugal;629;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue 890;Portugal;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 175;Italy;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 181;Italy;925;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 37;Portugal;1073;0;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule 1220;Slovenia;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1023;Lithuania;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 982;Portugal;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 899;Lithuania;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1517;Portugal;439;0;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 1147;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1256;Portugal;385;1;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 511;Portugal;136;1;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 468;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 913;Ireland;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 41;Portugal;550;0;Advanced;Analytic Geometry;Analytic Geometry;Cross product,Orthogonality 1269;Portugal;424;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1543;Portugal;1111;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 509;Portugal;641;1;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties,Hermitian matrix,Symmetric matrix,Matrix multiplication,Linearly independent rows,Matrix operations 509;Portugal;223;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 899;Lithuania;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1275;Lithuania;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 966;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1220;Slovenia;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 986;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1308;Italy;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 26;Portugal;220;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 28;Portugal;556;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line,Collinearity 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1087;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 397;Portugal;356;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers 1543;Portugal;1101;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1195;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 28;Portugal;558;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 1271;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 41;Portugal;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 411;Portugal;723;0;Basic;Integration;Integration Techniques;Substitution 80;Lithuania;837;0;Basic;Differential Equations;Differential Equations;Linear differential equation 674;Ireland;184;1;Basic;Statistics;Statistics;Frequency,Sample,Stem and Leaf diagram,Variance,Standard deviation,Relative frequency 69;Portugal;561;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 1194;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1077;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 359;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1196;Slovenia;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1158;Portugal;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 168;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 175;Italy;1216;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 955;Lithuania;1214;0;Basic;Numerical Methods;Numerical Methods;Mean,Median,Outliers,Interquartile range 81;Lithuania;114;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 988;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 633;Italy;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 552;Portugal;548;0;Basic;Analytic Geometry;Analytic Geometry;Collinearity,Distance,Locus,Cross product,Orthogonality,Scalar product 1504;Portugal;338;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 176;Italy;729;0;Basic;Differentiation;Derivatives;Quotient rule 1565;Portugal;732;0;Advanced;Integration;Integration Techniques;Trigonometric substitution 26;Portugal;829;1;Basic;Differential Equations;Differential Equations;Linear differential equation 1299;Italy;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1150;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1147;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 913;Ireland;1215;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 85;Lithuania;477;0;Basic;Graph Theory;Graph Theory;Simple graph 1487;Portugal;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1220;Slovenia;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1351;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 625;Russian Federation;367;0;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures 1197;Slovenia;447;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 625;Russian Federation;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 26;Portugal;555;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality,Locus,Distance 1271;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1171;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1375;Portugal;385;1;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1095;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 411;Portugal;339;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 91;Lithuania;460;1;Basic;Fundamental Mathematics;Elementary Geometry;Polyhedrons,Platonic solids,Geometric solids 168;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 91;Lithuania;463;1;Basic;Fundamental Mathematics;Elementary Geometry;Polyhedrons,Geometric solids,Classification of geometric solids 988;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1288;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 208;Lithuania;644;1;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Determinant computation,Matrix rank,Inverse matrix ,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 1220;Slovenia;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 80;Lithuania;848;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 1339;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 178;Italy;147;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1286;Italy;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 85;Lithuania;476;0;Basic;Graph Theory;Graph Theory;Adjacency matrix 986;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 394;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 90;Lithuania;645;1;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 1339;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1087;Portugal;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 218;Lithuania;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 168;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 972;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 64;Portugal;729;1;Basic;Differentiation;Derivatives;Quotient rule 1479;Portugal;1053;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 1565;Portugal;905;1;Advanced;Differential Equations;Differential Equations;Bernoulli equation,Linear differential equation 695;Portugal;183;1;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 349;Portugal;144;1;Basic;Differentiation;Derivatives;Trigonometric rules 91;Lithuania;502;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 451;Portugal;490;1;Advanced;Probability ;Probability ;Addition, multiplication, and total probability rules,Independence,Event 1220;Slovenia;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1324;Italy;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 91;Lithuania;348;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Complex plane ,Real part 403;Portugal;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1244;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 913;Ireland;1251;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 634;Italy;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 340;Portugal;77;1;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 1351;Portugal;778;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 625;Russian Federation;496;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 483;Portugal;113;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1146;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1322;Italy;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 852;Italy;948;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 1427;Portugal;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 975;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 128;Lithuania;641;0;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties,Hermitian matrix,Symmetric matrix,Matrix multiplication,Linearly independent rows,Matrix operations 1557;Portugal;87;1;Advanced;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 1220;Slovenia;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 750;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 359;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1487;Portugal;929;1;Basic;Graph Theory;Graph Theory;Cycle and circuit,Shortest path,Path,Planar graph,Tree,Adjacency matrix,Chromatic number,Simple graph,Spanning tree,Incidence matrix 986;Portugal;447;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1220;Slovenia;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 407;Portugal;368;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids,Regular polygon 1146;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 69;Portugal;703;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Scalar product 376;Portugal;357;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 1247;Portugal;650;0;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 1220;Slovenia;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 509;Portugal;141;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 1340;Portugal;1095;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 168;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 202;Lithuania;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1334;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1220;Slovenia;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 972;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1147;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 918;Portugal;266;0;Basic;Differentiation;Partial Differentiation;First order,Second order 420;Portugal;127;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Determinant computation,Determinant properties,Symmetric matrix,Inverse matrix ,Linearly independent rows,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank 175;Italy;339;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 913;Ireland;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1135;Portugal;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 1091;Lithuania;292;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 913;Ireland;1104;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 155;Spain;267;0;Basic;Differentiation;Partial Differentiation;First order,Second order 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1288;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 509;Portugal;218;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 955;Lithuania;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 219;Lithuania;666;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 576;Ireland;696;0;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Intersection,Cartesian equations of a line 1220;Slovenia;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1300;Italy;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 168;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 483;Portugal;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 168;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1023;Lithuania;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 26;Portugal;572;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Scalar product,Cross product,Distance,Collinearity,Orthogonality 1135;Portugal;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 956;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 91;Lithuania;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 411;Portugal;623;0;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 1081;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1146;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 80;Lithuania;738;1;Basic;Optimization;Linear Optimization;Graphical method,Linear programming 28;Portugal;701;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product,Distance 1044;Lithuania;258;1;Basic;Differentiation;Partial Differentiation;First order,Gradient 690;Portugal;193;0;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 1070;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 378;Portugal;549;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Cross product,Orthogonality 1487;Portugal;328;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 751;Lithuania;554;0;Basic;Analytic Geometry;Analytic Geometry;Scalar product,Orthogonality,Orthogonal projection,Distance 483;Portugal;359;1;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 955;Lithuania;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1196;Slovenia;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 175;Italy;1095;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 700;Portugal;80;0;Basic;Statistics;Statistics;Population,Variance,Median,Standard deviation,Mode,Quantile,Sample,Mean 1220;Slovenia;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 750;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 899;Lithuania;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1289;Italy;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 674;Ireland;179;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 71;Portugal;297;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 854;Italy;951;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 851;Italy;1053;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 851;Italy;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1219;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1079;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1220;Slovenia;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 625;Russian Federation;366;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 85;Lithuania;1127;0;Basic;Set Theory;Set Theory;Union of sets,Venn diagram,Complement of a set 1195;Portugal;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1288;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 176;Italy;118;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 376;Portugal;357;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 876;Italy;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1308;Italy;380;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 71;Portugal;1120;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 511;Portugal;229;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 91;Lithuania;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 72;Portugal;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1248;Italy;217;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 91;Lithuania;500;0;Advanced;Fundamental Mathematics;Elementary Geometry;Geometrical figures,Triangles,Classification of geometrical figures 913;Ireland;1120;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 176;Italy;788;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 956;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 28;Portugal;186;0;Basic;Statistics;Statistics;Population,Sample 1179;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 840;Italy;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1081;Portugal;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 1308;Italy;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 511;Portugal;91;0;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 695;Portugal;202;1;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 1543;Portugal;1115;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 91;Lithuania;371;0;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Geometrical figures 483;Portugal;363;1;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 599;Italy;617;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Spectrum,Eigenvector,Characteristic polynomial 352;Portugal;144;0;Basic;Differentiation;Derivatives;Trigonometric rules 1517;Portugal;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1288;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 483;Portugal;274;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 1247;Portugal;635;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 625;Russian Federation;802;1;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 36;Portugal;1150;0;Basic;Set Theory;Set Theory;Subset 576;Ireland;699;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Locus,Intersection,Cartesian equations of a line 406;Portugal;666;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 470;Portugal;700;0;Basic;Analytic Geometry;Analytic Geometry;Collinearity,Locus,Orthogonality,Orthogonal projection,Scalar product,Distance 1091;Lithuania;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 26;Portugal;837;1;Basic;Differential Equations;Differential Equations;Linear differential equation 250;Lithuania;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 884;Italy;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1135;Portugal;292;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 1081;Portugal;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 840;Italy;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 28;Portugal;569;1;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance,Scalar product,Cross product,Orthogonality,Collinearity 840;Italy;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1079;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 81;Lithuania;549;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Cross product,Orthogonality 1252;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 625;Russian Federation;792;1;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 525;Portugal;513;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 985;Romania;250;1;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Trigonometric rules 151;Portugal;114;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1081;Portugal;420;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 852;Italy;233;0;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 1044;Lithuania;266;1;Basic;Differentiation;Partial Differentiation;First order,Second order 855;Italy;227;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 151;Portugal;118;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 37;Portugal;309;1;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 165;Portugal;98;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 1220;Slovenia;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1056;Lithuania;999;0;Basic;Differentiation;Partial Differentiation;First order 37;Portugal;657;1;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 1286;Italy;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1273;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1331;Portugal;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 91;Lithuania;507;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry 966;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 985;Romania;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 394;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 128;Lithuania;353;1;Basic;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 1038;Lithuania;261;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 181;Italy;925;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 176;Italy;253;0;Basic;Differentiation;Derivatives;Logarithmic rule,Trigonometric rules 899;Lithuania;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1220;Slovenia;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 72;Portugal;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 827;Italy;636;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 91;Lithuania;493;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangles,Triangle inequality 1292;Italy;778;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1077;Portugal;382;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 414;Portugal;241;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1292;Italy;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1487;Portugal;1052;1;Basic;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Algebraic form,Operations with complex numbers,Real part,Equations involving complex numbers 91;Lithuania;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1350;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 411;Portugal;342;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 509;Portugal;637;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 1182;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 168;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1322;Italy;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1146;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 955;Lithuania;1117;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 552;Portugal;927;0;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 72;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 468;Portugal;354;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 406;Portugal;363;1;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 898;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 37;Portugal;733;1;Basic;Integration;Integration Techniques;Simple integration,Direct inspection 426;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 426;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1220;Slovenia;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 985;Romania;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 457;Portugal;332;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1023;Lithuania;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 986;Portugal;427;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1023;Lithuania;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 37;Portugal;412;1;Basic;Integration;Integration Techniques;Power of trigonometric functions 851;Italy;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 397;Portugal;352;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 1182;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 598;Italy;949;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 151;Portugal;118;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 913;Ireland;300;1;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 1220;Slovenia;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 204;Lithuania;666;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 913;Ireland;767;0;Basic;Probability ;Probability ;Event,Sample space 1284;Italy;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 28;Portugal;560;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 625;Russian Federation;117;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1219;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 168;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 973;Portugal;246;0;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1082;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1026;Lithuania;263;0;Basic;Differentiation;Partial Differentiation;First order 181;Italy;679;0;Basic;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 1288;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 633;Italy;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 352;Portugal;272;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 986;Portugal;306;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 1428;Portugal;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1039;Lithuania;885;0;Basic;Differentiation;Partial Differentiation;Second order,First order 90;Lithuania;354;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 967;Portugal;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 667;Portugal;183;1;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 1275;Lithuania;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 1220;Slovenia;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 411;Portugal;733;0;Basic;Integration;Integration Techniques;Simple integration,Direct inspection 28;Portugal;567;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a line,Orthogonality,Collinearity 1220;Slovenia;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 1291;Italy;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 955;Lithuania;1251;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 851;Italy;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 411;Portugal;610;0;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector,Spectrum,Characteristic polynomial 374;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 151;Portugal;113;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 85;Lithuania;1144;1;Basic;Set Theory;Set Theory;Subset 576;Ireland;699;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Locus,Intersection,Cartesian equations of a line 72;Portugal;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 913;Ireland;1100;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 61;Portugal;156;1;Basic;Differential Equations;Differential Equations;Linear differential equation 1543;Portugal;1087;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 899;Lithuania;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1331;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1023;Lithuania;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1220;Slovenia;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 899;Lithuania;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 67;Portugal;202;0;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 1353;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 973;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1244;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1135;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 168;Portugal;388;0;Advanced;Integration;Integration Techniques;Rational functions 1185;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 974;Portugal;439;1;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 1080;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 535;Portugal;351;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 85;Lithuania;1151;1;Basic;Set Theory;Set Theory;Subset 1308;Italy;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 986;Portugal;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1023;Lithuania;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 165;Portugal;542;0;Basic;Integration;Double Integration;y-simple region (type I),Cartesian coordinates,Area ,Iterate integrals 638;Italy;79;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 973;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1252;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 37;Portugal;1173;1;Basic;Integration;Definite Integrals; Integration by parts,Fundamental theorem of Calculus 467;Portugal;354;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 155;Spain;493;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangles,Triangle inequality 1428;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 769;Portugal;334;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 840;Italy;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1148;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1023;Lithuania;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1487;Portugal;145;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1289;Italy;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 725;Portugal;189;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 81;Lithuania;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 509;Portugal;227;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 80;Lithuania;736;1;Basic;Optimization;Linear Optimization;Linear programming,Excel solver add-in,Simplex method 1481;Portugal;671;0;Basic;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 1444;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1338;Portugal;289;0;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1126;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1130;Portugal;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 91;Lithuania;522;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Triangles 1220;Slovenia;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1044;Lithuania;148;1;Basic;Differentiation;Partial Differentiation;First order 1411;Portugal;385;1;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 598;Italy;130;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 1427;Portugal;278;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 854;Italy;215;0;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 625;Russian Federation;800;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Exponential function,Simplify expressions 1081;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 394;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 913;Ireland;486;0;Basic;Probability ;Probability ;Event,Addition, multiplication, and total probability rules,Sample space 1179;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1163;Portugal;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 576;Ireland;951;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 91;Lithuania;508;1;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 1517;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 91;Lithuania;456;1;Advanced;Fundamental Mathematics;Elementary Geometry;Triangles 1171;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 851;Italy;964;1;Basic;Optimization;Nonlinear Optimization;Simplex method,Duality theory 699;Portugal;180;1;Basic;Statistics;Statistics;Mean,Median,Mode 1319;Italy;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 37;Portugal;1070;1;Basic;Differentiation;Partial Differentiation;First order 646;Ireland;80;0;Basic;Statistics;Statistics;Population,Variance,Median,Standard deviation,Mode,Quantile,Sample,Mean 197;Portugal;118;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 411;Portugal;592;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Logarithmic rule,Product rule,Trigonometric rules 1220;Slovenia;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 854;Italy;88;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 1276;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1050;Lithuania;908;0;Basic;Differentiation;Partial Differentiation;Gradient,Directional derivative 956;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 80;Lithuania;559;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 394;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 359;Portugal;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1220;Slovenia;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 52;Portugal;653;1;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix rank 1049;Lithuania;260;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 1321;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1023;Lithuania;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 958;Lithuania;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1269;Portugal;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 510;Portugal;798;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1071;Lithuania;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 41;Portugal;181;0;Basic;Statistics;Statistics;Quantile,Frequency,Sample,Mean,Variance,Standard deviation,Median,Mode 1324;Italy;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1444;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 422;Portugal;643;0;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 625;Russian Federation;662;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 468;Portugal;350;0;Advanced;Complex Numbers;Complex Numbers;Complex plane 1220;Slovenia;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 71;Portugal;650;0;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 37;Portugal;1116;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 637;Italy;80;0;Basic;Statistics;Statistics;Population,Variance,Median,Standard deviation,Mode,Quantile,Sample,Mean 168;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 26;Portugal;217;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 465;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 414;Portugal;91;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1220;Slovenia;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 168;Portugal;381;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1229;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1220;Slovenia;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 969;Romania;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1146;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 483;Portugal;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 176;Italy;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 26;Portugal;146;1;Basic;Differential Equations;Differential Equations;Separable variables equation 37;Portugal;1014;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 1291;Italy;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 969;Romania;451;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1044;Lithuania;148;1;Basic;Differentiation;Partial Differentiation;First order 67;Portugal;181;0;Basic;Statistics;Statistics;Quantile,Frequency,Sample,Mean,Variance,Standard deviation,Median,Mode 876;Italy;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 374;Portugal;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1271;Portugal;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 352;Portugal;100;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Power rule 1220;Slovenia;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1543;Portugal;1094;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1135;Portugal;381;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 168;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 72;Portugal;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1219;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 509;Portugal;793;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 1022;Lithuania;1005;0;Basic;Optimization;Nonlinear Optimization;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 37;Portugal;1168;0;Basic;Integration;Definite Integrals;Direct integrals ,Fundamental theorem of Calculus 351;Portugal;795;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 168;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 168;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 626;Italy;274;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 57;Portugal;186;0;Basic;Statistics;Statistics;Population,Sample 639;Italy;177;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1286;Italy;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 91;Lithuania;330;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number 168;Portugal;288;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1517;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 168;Portugal;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1334;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1082;Portugal;777;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 142;Portugal;667;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1286;Italy;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1173;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 972;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 203;Lithuania;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1324;Italy;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 988;Portugal;948;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 1023;Lithuania;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 664;Portugal;211;1;Basic;Statistics;Statistics;Linear regression 1427;Portugal;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 457;Portugal;330;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number 986;Portugal;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 37;Portugal;309;1;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 80;Lithuania;647;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations 890;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1049;Lithuania;876;0;Basic;Differentiation;Partial Differentiation;Directional derivative,Gradient,First order,Second order 854;Italy;215;0;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 1220;Slovenia;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 625;Russian Federation;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 36;Portugal;1151;1;Basic;Set Theory;Set Theory;Subset 855;Italy;949;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 72;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1023;Lithuania;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1023;Lithuania;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 552;Portugal;904;0;Basic;Differential Equations;Differential Equations;Bernoulli equation,Linear differential equation 37;Portugal;821;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum,Second derivative test,Stationary point,Unconstrained optimization,Saddle point 524;Portugal;495;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 376;Portugal;346;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 827;Italy;602;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector,Spectrum,Characteristic polynomial 1276;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1023;Lithuania;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 751;Lithuania;703;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Scalar product 1322;Italy;454;1;Basic;Linear Algebra;Vector Spaces;Basis 972;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 974;Portugal;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 178;Italy;143;0;Basic;Differentiation;Derivatives;Trigonometric rules,Logarithmic rule 1334;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 913;Ireland;1138;1;Basic;Set Theory;Set Theory;Subset 1044;Lithuania;879;1;Basic;Differentiation;Partial Differentiation;First order,Second order 26;Portugal;557;1;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance 90;Lithuania;329;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 955;Lithuania;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 393;Lithuania;351;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 510;Portugal;646;0;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Commuting matrices,Solve matrix equation,Determinant computation,Inverse matrix ,Matrix rank,Determinant properties,Matrix multiplication,Symmetric matrix 1505;Portugal;488;1;Basic;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 1338;Portugal;778;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 422;Portugal;126;1;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Solve matrix equation 176;Italy;752;1;Basic;Differentiation;Derivatives;Power rule,Quotient rule,Product rule,Trigonometric rules 1044;Lithuania;257;1;Basic;Differentiation;Partial Differentiation;Gradient,First order 625;Russian Federation;114;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 753;Italy;258;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 1564;Portugal;399;0;Basic;Integration;Integration Techniques;Substitution,Direct inspection,Simple integration 1487;Portugal;335;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 625;Russian Federation;789;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 37;Portugal;1067;0;Advanced;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule 576;Ireland;565;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonal projection,Orthogonality,Collinearity,Locus 988;Portugal;229;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1080;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 175;Italy;1496;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1543;Portugal;1112;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 625;Russian Federation;117;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1479;Portugal;866;1;Basic;Optimization;Nonlinear Optimization;Stationary point,Maximum,Saddle point,Optimal solution,Minimum 155;Spain;904;0;Basic;Differential Equations;Differential Equations;Bernoulli equation,Linear differential equation 899;Lithuania;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1023;Lithuania;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1023;Lithuania;454;1;Basic;Linear Algebra;Vector Spaces;Basis 851;Italy;155;0;Basic;Optimization;Nonlinear Optimization;Lagrange multipliers,Maximum,Minimum 1039;Lithuania;885;0;Basic;Differentiation;Partial Differentiation;Second order,First order 1220;Slovenia;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 91;Lithuania;634;1;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Inverse matrix ,Solve matrix equation,Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Commuting matrices,Determinant computation 473;Portugal;288;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 876;Italy;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 91;Lithuania;513;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 898;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 426;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 200;Lithuania;733;1;Basic;Integration;Integration Techniques;Simple integration,Direct inspection 1179;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 175;Italy;1474;1;Basic;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 511;Portugal;130;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 1023;Lithuania;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1288;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 91;Lithuania;508;1;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 1252;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 91;Lithuania;367;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures 91;Lithuania;514;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 1277;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1289;Italy;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 625;Russian Federation;950;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1352;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 1143;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1023;Lithuania;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 851;Italy;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 524;Portugal;794;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1252;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1340;Portugal;1090;0;Basic;Numerical Methods;Numerical Methods;Nonlinear equation,Newton’s method 1196;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 582;Lithuania;698;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Distance 128;Lithuania;645;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 1070;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 28;Portugal;560;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 64;Portugal;576;1;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 634;Italy;657;1;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 1322;Italy;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1256;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 37;Portugal;1066;1;Advanced;Differentiation;Partial Differentiation;First order,Second order 1289;Italy;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 90;Lithuania;133;0;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 175;Italy;1485;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 853;Italy;245;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 204;Lithuania;366;0;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 28;Portugal;948;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 955;Lithuania;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1082;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 967;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 167;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1220;Slovenia;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 71;Portugal;612;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1157;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 986;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 852;Italy;215;0;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 1487;Portugal;331;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1220;Slovenia;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 174;Portugal;519;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1322;Italy;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 853;Italy;230;0;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 420;Portugal;342;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 972;Portugal;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 91;Lithuania;456;0;Advanced;Fundamental Mathematics;Elementary Geometry;Triangles 1308;Italy;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 1082;Portugal;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 80;Lithuania;327;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 91;Lithuania;424;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1049;Lithuania;1002;0;Basic;Differentiation;Partial Differentiation;First order 168;Portugal;420;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1081;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 351;Portugal;787;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 351;Portugal;735;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 990;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 625;Russian Federation;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 174;Portugal;341;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1219;Portugal;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 884;Italy;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1332;Portugal;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 625;Russian Federation;513;0;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 91;Lithuania;369;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Geometrical figures,Classification of geometrical figures 967;Portugal;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 1517;Portugal;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 91;Lithuania;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 642;Italy;191;1;Basic;Statistics;Statistics;Median,Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance 483;Portugal;665;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 890;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 884;Italy;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1282;Portugal;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1220;Slovenia;454;1;Basic;Linear Algebra;Vector Spaces;Basis 1351;Portugal;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 524;Portugal;494;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 741;Ireland;480;1;Basic;Graph Theory;Graph Theory;Planar graph 1122;Portugal;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 175;Italy;1106;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 374;Portugal;645;1;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 852;Italy;233;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 576;Ireland;567;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a line,Orthogonality,Collinearity 885;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1023;Lithuania;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 913;Ireland;222;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 625;Russian Federation;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 72;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 636;Italy;201;1;Basic;Statistics;Statistics;Chi square distribution,Student distribution,Quantile,Hypothesis testing 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 986;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1518;Portugal;767;1;Basic;Probability ;Probability ;Event,Sample space 168;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 387;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 979;Portugal;1251;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1087;Portugal;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 71;Portugal;1107;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 840;Italy;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 524;Portugal;646;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Commuting matrices,Solve matrix equation,Determinant computation,Inverse matrix ,Matrix rank,Determinant properties,Matrix multiplication,Symmetric matrix 1277;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 853;Italy;242;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1538;Portugal;1102;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 470;Portugal;552;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product 1147;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1341;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 426;Portugal;358;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 1220;Slovenia;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 69;Portugal;556;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line,Collinearity 1220;Slovenia;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;349;0;Advanced;Complex Numbers;Complex Numbers;Complex plane 551;Lithuania;340;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers,Conjugate number 690;Portugal;78;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 898;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 57;Portugal;187;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 28;Portugal;211;0;Basic;Statistics;Statistics;Linear regression 378;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1173;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 177;Italy;657;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 1291;Italy;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 351;Portugal;721;0;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules 71;Portugal;567;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a line,Orthogonality,Collinearity 1308;Italy;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1505;Portugal;958;0;Basic;Optimization;Linear Optimization;Linear programming 28;Portugal;699;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Locus,Intersection,Cartesian equations of a line 376;Portugal;340;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers,Conjugate number 899;Lithuania;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1220;Slovenia;454;0;Basic;Linear Algebra;Vector Spaces;Basis 876;Italy;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 168;Portugal;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 876;Italy;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 524;Portugal;787;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 41;Portugal;77;1;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 1081;Portugal;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1044;Lithuania;875;0;Basic;Differentiation;Partial Differentiation;Gradient,First order 524;Portugal;113;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 979;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 91;Lithuania;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 549;Portugal;703;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Scalar product 26;Portugal;92;1;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 387;Portugal;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 250;Lithuania;218;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 71;Portugal;328;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 166;Portugal;701;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product,Distance 426;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 168;Portugal;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 1220;Slovenia;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1081;Portugal;427;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1411;Portugal;778;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1122;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 625;Russian Federation;799;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 775;Portugal;301;0;Basic;Probability ;Probability ;Sample space,Event 1338;Portugal;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 80;Lithuania;363;1;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 359;Portugal;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 80;Lithuania;545;0;Basic;Integration;Double Integration;y-simple region (type I),Area ,Cartesian coordinates 1286;Italy;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 311;Ireland;125;0;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Symmetric matrix,Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication 1087;Portugal;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 414;Portugal;335;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 1286;Italy;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 956;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 473;Portugal;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 884;Italy;441;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span 462;Lithuania;272;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 1082;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1565;Portugal;412;0;Basic;Integration;Integration Techniques;Power of trigonometric functions 986;Portugal;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 1050;Lithuania;261;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 411;Portugal;88;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 1479;Portugal;821;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum,Second derivative test,Stationary point,Unconstrained optimization,Saddle point 955;Lithuania;1119;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 387;Portugal;439;1;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 91;Lithuania;369;1;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Geometrical figures,Classification of geometrical figures 72;Portugal;342;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 956;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 483;Portugal;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1379;Portugal;921;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 582;Lithuania;573;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Locus,Scalar product,Cross product,Collinearity 1286;Italy;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1166;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1095;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 840;Italy;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 198;Italy;460;0;Basic;Fundamental Mathematics;Elementary Geometry;Polyhedrons,Platonic solids,Geometric solids 884;Italy;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1333;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1517;Portugal;448;0;Advanced;Linear Algebra;Vector Spaces;Subspace 421;Portugal;327;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 913;Ireland;1095;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 884;Italy;451;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1299;Italy;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 36;Portugal;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 625;Russian Federation;464;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometrical figures 683;Ireland;211;1;Basic;Statistics;Statistics;Linear regression 1018;Lithuania;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 91;Lithuania;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 91;Lithuania;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 160;Portugal;104;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 457;Portugal;351;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 41;Portugal;584;1;Basic;Graph Theory;Graph Theory;Adjacency matrix 1135;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1220;Slovenia;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 967;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 71;Portugal;735;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 455;Portugal;640;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 1518;Portugal;135;0;Basic;Linear Algebra;Matrices and Determinants;Symmetric matrix,Determinant computation,Determinant properties 525;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 41;Portugal;211;1;Basic;Statistics;Statistics;Linear regression 974;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1517;Portugal;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1411;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 483;Portugal;371;0;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Geometrical figures 1220;Slovenia;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1271;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1080;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 955;Lithuania;455;0;Basic;Linear Algebra;Vector Spaces;Basis 80;Lithuania;281;1;Basic;Optimization;Linear Optimization;Linear programming 576;Ireland;702;0;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Intersection,Cartesian equations of a line 91;Lithuania;358;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 41;Portugal;185;1;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 91;Lithuania;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1308;Italy;778;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 80;Lithuania;765;1;Basic;Probability ;Probability ;Addition, multiplication, and total probability rules 411;Portugal;334;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 525;Portugal;612;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 689;Portugal;964;0;Basic;Optimization;Nonlinear Optimization;Simplex method,Duality theory 181;Italy;83;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 151;Portugal;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 674;Ireland;186;0;Basic;Statistics;Statistics;Population,Sample 175;Italy;1119;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 884;Italy;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 509;Portugal;640;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 1220;Slovenia;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;505;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangles 1281;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 658;Ireland;189;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 1044;Lithuania;878;1;Basic;Differentiation;Partial Differentiation;Second order,First order 168;Portugal;393;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 1505;Portugal;742;0;Basic;Optimization;Linear Optimization;Duality theory,Linear programming 972;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 955;Lithuania;1099;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 851;Italy;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 168;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 41;Portugal;570;1;Advanced;Analytic Geometry;Analytic Geometry;Distance,Orthogonal projection,Orthogonality 1244;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 91;Lithuania;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1564;Portugal;922;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1049;Lithuania;253;0;Basic;Differentiation;Derivatives;Logarithmic rule,Trigonometric rules 197;Portugal;667;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1289;Italy;783;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 684;Ireland;204;0;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 660;Portugal;182;0;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 979;Portugal;89;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 953;Lithuania;78;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 80;Lithuania;300;1;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 975;Portugal;603;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector,Spectrum,Characteristic polynomial 1379;Portugal;925;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 168;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 175;Italy;1092;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 969;Romania;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 151;Portugal;114;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 840;Italy;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 625;Russian Federation;458;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometric transformations,Geometrical figures 753;Italy;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 393;Lithuania;351;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 168;Portugal;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 884;Italy;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1192;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 524;Portugal;794;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1080;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 700;Portugal;193;1;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 1271;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 625;Russian Federation;461;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 1509;Portugal;923;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 509;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 913;Ireland;193;1;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 1324;Italy;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 80;Lithuania;736;1;Basic;Optimization;Linear Optimization;Linear programming,Excel solver add-in,Simplex method 1219;Portugal;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 955;Lithuania;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1322;Italy;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 91;Lithuania;448;1;Advanced;Linear Algebra;Vector Spaces;Subspace 898;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1334;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1023;Lithuania;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 28;Portugal;558;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 851;Italy;821;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum,Second derivative test,Stationary point,Unconstrained optimization,Saddle point 1220;Slovenia;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 168;Portugal;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 414;Portugal;222;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 625;Russian Federation;802;1;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1157;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1288;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 852;Italy;215;0;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 509;Portugal;123;1;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 349;Portugal;94;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 1158;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 576;Ireland;123;0;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 71;Portugal;666;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 91;Lithuania;521;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Regular polygon 1286;Italy;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 387;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1379;Portugal;923;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1220;Slovenia;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 376;Portugal;355;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 899;Lithuania;449;1;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 626;Italy;275;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 986;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1150;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 955;Lithuania;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1077;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 853;Italy;229;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 71;Portugal;294;0;Basic;Probability ;Probability ;Event,Axioms of probability,Sample space 359;Portugal;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 352;Portugal;93;0;Basic;Differentiation;Derivatives;Product rule,Logarithmic rule,Trigonometric rules 1109;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1564;Portugal;271;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 750;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 473;Portugal;351;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 1220;Slovenia;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 600;Italy;231;0;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system,Solution of linear system 168;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1292;Italy;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1044;Lithuania;875;0;Basic;Differentiation;Partial Differentiation;Gradient,First order 582;Lithuania;557;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance 1220;Slovenia;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 468;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1220;Slovenia;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 913;Ireland;1094;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 525;Portugal;495;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 851;Italy;911;1;Basic;Optimization;Nonlinear Optimization;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 36;Portugal;273;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 359;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 457;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 91;Lithuania;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 776;Portugal;562;0;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 181;Italy;918;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1034;Lithuania;883;0;Basic;Differentiation;Partial Differentiation;First order,Directional derivative 72;Portugal;326;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 1220;Slovenia;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1087;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1230;Portugal;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 699;Portugal;79;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 511;Portugal;92;1;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 884;Italy;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 979;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 376;Portugal;331;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 80;Lithuania;565;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonal projection,Orthogonality,Collinearity,Locus 91;Lithuania;461;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 955;Lithuania;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1517;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 899;Lithuania;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 91;Lithuania;368;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids,Regular polygon 1543;Portugal;1101;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1517;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 168;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 851;Italy;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1093;Portugal;381;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 524;Portugal;228;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 684;Ireland;182;1;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 913;Ireland;1213;1;Basic;Numerical Methods;Numerical Methods;Mean,Median,Outliers,Interquartile range 1029;Lithuania;262;0;Basic;Differentiation;Partial Differentiation;First order 380;Portugal;910;1;Basic;Optimization;Nonlinear Optimization;Minimum,Maximum,Lagrange multipliers,Saddle point,Unconstrained optimization,Second derivative test 1543;Portugal;1089;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 1219;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 411;Portugal;593;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue 1171;Portugal;960;0;Basic;Optimization;Nonlinear Optimization;Linear programming 679;Portugal;79;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 1505;Portugal;962;1;Basic;Optimization;Linear Optimization;Simplex method,Duality theory 1070;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1543;Portugal;1107;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1080;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 661;Portugal;177;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1277;Portugal;278;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 85;Lithuania;1128;1;Basic;Set Theory;Set Theory;Subset 91;Lithuania;517;1;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 81;Lithuania;454;1;Basic;Linear Algebra;Vector Spaces;Basis 1220;Slovenia;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1023;Lithuania;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1487;Portugal;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1402;Portugal;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 511;Portugal;239;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1308;Italy;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 422;Portugal;130;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 1256;Portugal;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 80;Lithuania;541;0;Basic;Integration;Double Integration;y-simple region (type I),Cartesian coordinates,Iterate integrals 1147;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 91;Lithuania;367;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures 827;Italy;218;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1273;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1077;Portugal;288;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1274;Portugal;794;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 175;Italy;147;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1288;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1037;Lithuania;1001;0;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule 1157;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1564;Portugal;414;0;Basic;Integration;Integration Techniques;Substitution,Direct inspection,Integration by parts,Rational functions 1561;Portugal;681;1;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 1561;Portugal;392;0;Advanced;Integration;Integration Techniques;Substitution 840;Italy;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1300;Italy;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1147;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 175;Italy;1103;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 407;Portugal;335;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 988;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1220;Slovenia;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1305;Italy;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 91;Lithuania;349;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 72;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 535;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1543;Portugal;1094;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1157;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1220;Slovenia;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1196;Slovenia;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 854;Italy;227;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 411;Portugal;414;0;Basic;Integration;Integration Techniques;Substitution,Direct inspection,Integration by parts,Rational functions 1220;Slovenia;454;0;Basic;Linear Algebra;Vector Spaces;Basis 64;Portugal;703;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Scalar product 1334;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 913;Ireland;1088;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 155;Spain;275;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 72;Portugal;548;0;Basic;Analytic Geometry;Analytic Geometry;Collinearity,Distance,Locus,Cross product,Orthogonality,Scalar product 1274;Portugal;614;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 380;Portugal;351;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 1148;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1286;Italy;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1077;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 411;Portugal;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 509;Portugal;640;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 1196;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1220;Slovenia;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 81;Lithuania;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 913;Ireland;1116;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 168;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 965;Portugal;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1244;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1275;Lithuania;448;0;Advanced;Linear Algebra;Vector Spaces;Subspace 71;Portugal;639;0;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Determinant computation,Determinant properties,Matrix operations 197;Portugal;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 411;Portugal;593;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue 1557;Portugal;670;1;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 1143;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 967;Portugal;449;1;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 422;Portugal;133;1;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 403;Portugal;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 1339;Portugal;446;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 71;Portugal;253;0;Basic;Differentiation;Derivatives;Logarithmic rule,Trigonometric rules 1173;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1279;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1288;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1081;Portugal;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 80;Lithuania;332;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 967;Portugal;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 81;Lithuania;783;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 576;Ireland;550;0;Advanced;Analytic Geometry;Analytic Geometry;Cross product,Orthogonality 913;Ireland;1119;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 411;Portugal;596;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Eigenvalue 955;Lithuania;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 473;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1023;Lithuania;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 551;Lithuania;358;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 913;Ireland;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 661;Portugal;81;1;Basic;Statistics;Statistics;Mean,Median,Mode 851;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 955;Lithuania;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1081;Portugal;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1080;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 956;Portugal;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 37;Portugal;399;1;Basic;Integration;Integration Techniques;Substitution,Direct inspection,Simple integration 72;Portugal;292;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 884;Italy;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 625;Russian Federation;460;0;Basic;Fundamental Mathematics;Elementary Geometry;Polyhedrons,Platonic solids,Geometric solids 91;Lithuania;346;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 1339;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 966;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 956;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 598;Italy;635;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 411;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1291;Italy;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 72;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 898;Portugal;818;0;Basic;Optimization;Nonlinear Optimization;Minimum,Maximum,Stationary point,Second derivative test,Unconstrained optimization,Saddle point,Optimal solution 72;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 411;Portugal;605;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Spectrum,Diagonalization,Characteristic polynomial 406;Portugal;230;0;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1182;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 240;Lithuania;83;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 1087;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 776;Portugal;553;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Distance,Scalar product 197;Portugal;666;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 979;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 876;Italy;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 956;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1375;Portugal;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1271;Portugal;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 168;Portugal;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 918;Portugal;268;0;Basic;Differentiation;Partial Differentiation;First order,Second order 1271;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 851;Italy;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 753;Italy;876;0;Basic;Differentiation;Partial Differentiation;Directional derivative,Gradient,First order,Second order 91;Lithuania;777;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1286;Italy;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 483;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1049;Lithuania;269;1;Basic;Differentiation;Partial Differentiation;First order,Second order 91;Lithuania;342;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 1220;Slovenia;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 876;Italy;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 166;Portugal;573;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Locus,Scalar product,Cross product,Collinearity 202;Lithuania;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 851;Italy;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 890;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1481;Portugal;546;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonal projection,Distance,Cross product,Orthogonality 470;Portugal;554;1;Basic;Analytic Geometry;Analytic Geometry;Scalar product,Orthogonality,Orthogonal projection,Distance 1220;Slovenia;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1481;Portugal;757;0;Basic;Integration;Double Integration;Iterate integrals,Cartesian coordinates,y-simple region (type I) 524;Portugal;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 853;Italy;222;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 524;Portugal;461;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 898;Portugal;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 165;Portugal;393;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 142;Portugal;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 884;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1126;Portugal;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1220;Slovenia;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 359;Portugal;665;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1286;Italy;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 203;Lithuania;112;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 509;Portugal;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 851;Italy;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 689;Portugal;862;0;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 1517;Portugal;854;0;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Diagonalization,Spectrum,Characteristic polynomial 374;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 405;Portugal;104;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1022;Lithuania;965;0;Basic;Optimization;Linear Optimization;Excel solver add-in,Simplex method,Linear programming,Transportation problem 511;Portugal;612;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1557;Portugal;676;0;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 1291;Italy;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1284;Italy;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 422;Portugal;326;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 483;Portugal;142;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 965;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 69;Portugal;564;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonality 1023;Lithuania;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 966;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1252;Portugal;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1158;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1026;Lithuania;878;0;Basic;Differentiation;Partial Differentiation;Second order,First order 1220;Slovenia;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1339;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1146;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1256;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 91;Lithuania;505;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangles 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 378;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1504;Portugal;330;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number 37;Portugal;787;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 1271;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 80;Lithuania;233;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 890;Portugal;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 683;Ireland;188;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 840;Italy;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 344;Portugal;665;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1146;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1076;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 72;Portugal;338;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 411;Portugal;94;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 168;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 986;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1135;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 90;Lithuania;125;0;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Symmetric matrix,Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication 913;Ireland;773;1;Basic;Probability ;Probability ;Event,Sample space,Addition, multiplication, and total probability rules,Axioms of probability 551;Lithuania;335;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 956;Portugal;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 988;Portugal;952;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1220;Slovenia;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 405;Portugal;795;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 168;Portugal;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 853;Italy;244;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1324;Italy;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 91;Lithuania;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 168;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 81;Lithuania;568;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 1082;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1032;Lithuania;1000;0;Basic;Differentiation;Partial Differentiation;First order 898;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1135;Portugal;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 634;Italy;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1505;Portugal;1021;0;Basic;Optimization;Linear Optimization;Simplex method,Linear programming,Assignment problem,Excel solver add-in 1182;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 200;Lithuania;723;0;Basic;Integration;Integration Techniques;Substitution 1156;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 750;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 71;Portugal;645;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 1220;Slovenia;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1220;Slovenia;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1332;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 349;Portugal;252;0;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Power rule,Trigonometric rules 851;Italy;860;1;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 966;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 637;Italy;204;1;Basic;Statistics;Statistics;Student distribution,Hypothesis testing 1334;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1135;Portugal;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 91;Lithuania;504;0;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 1220;Slovenia;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1289;Italy;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1322;Italy;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1220;Slovenia;455;1;Basic;Linear Algebra;Vector Spaces;Basis 168;Portugal;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 457;Portugal;333;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 91;Lithuania;498;1;Advanced;Fundamental Mathematics;Elementary Geometry;Triangles,Classification of geometrical figures,Geometrical figures 1093;Portugal;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 854;Italy;949;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 168;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 239;Lithuania;143;1;Basic;Differentiation;Derivatives;Trigonometric rules,Logarithmic rule 37;Portugal;329;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1252;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1109;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 176;Italy;250;1;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Trigonometric rules 175;Italy;1104;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 175;Italy;1216;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 913;Ireland;1105;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 61;Portugal;165;1;Basic;Differential Equations;Differential Equations;Linear differential equation,Homogeneous equation 168;Portugal;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 751;Lithuania;557;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance 511;Portugal;224;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 967;Portugal;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 985;Romania;794;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1256;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1182;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 986;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 524;Portugal;219;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 851;Italy;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1282;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1044;Lithuania;999;0;Basic;Differentiation;Partial Differentiation;First order 1252;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 913;Ireland;427;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 885;Italy;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 177;Italy;112;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 851;Italy;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1557;Portugal;835;0;Basic;Differential Equations;Differential Equations;Exact differential form,Cauchy problem 625;Russian Federation;517;0;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 1109;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 26;Portugal;302;1;Basic;Probability ;Probability ;Addition, multiplication, and total probability rules,Sample space,Event,Axioms of probability 1146;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 394;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 37;Portugal;1198;0;Basic;Integration;Definite Integrals;Area of a planar region ,Fundamental theorem of Calculus 1288;Portugal;777;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1271;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1286;Italy;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1082;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1256;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 201;Lithuania;786;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 37;Portugal;735;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1109;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 421;Portugal;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1339;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 990;Portugal;625;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 176;Italy;254;0;Basic;Differentiation;Derivatives;Logarithmic rule,Power rule,Trigonometric rules 52;Portugal;137;1;Basic;Linear Algebra;Matrices and Determinants;Matrix equivalent - echelon,Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Linearly independent rows,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 1182;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1543;Portugal;1098;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 168;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 918;Portugal;394;0;Basic;Integration;Integration Techniques;Substitution 175;Italy;720;0;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules,Logarithmic rule,Product rule 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 197;Portugal;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1271;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 913;Ireland;1107;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 91;Lithuania;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 91;Lithuania;367;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures 359;Portugal;506;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry 168;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 988;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1525;Portugal;749;0;Advanced;Optimization;Linear Optimization;Postoptimality analysis,Duality theory,Excel solver add-in,Simplex method,Linear programming,Sensitivity analysis 411;Portugal;646;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Commuting matrices,Solve matrix equation,Determinant computation,Inverse matrix ,Matrix rank,Determinant properties,Matrix multiplication,Symmetric matrix 658;Ireland;184;0;Basic;Statistics;Statistics;Frequency,Sample,Stem and Leaf diagram,Variance,Standard deviation,Relative frequency 72;Portugal;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1220;Slovenia;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 69;Portugal;558;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 1194;Portugal;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 91;Lithuania;497;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 852;Italy;215;0;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 1220;Slovenia;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 660;Portugal;177;1;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 625;Russian Federation;796;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 1242;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 91;Lithuania;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 511;Portugal;796;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 525;Portugal;102;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 725;Portugal;187;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 986;Portugal;777;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 955;Lithuania;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 899;Lithuania;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1082;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1542;Portugal;1087;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 720;Portugal;181;1;Basic;Statistics;Statistics;Quantile,Frequency,Sample,Mean,Variance,Standard deviation,Median,Mode 1542;Portugal;1106;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1505;Portugal;79;1;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 876;Italy;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 311;Ireland;130;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 1044;Lithuania;257;1;Basic;Differentiation;Partial Differentiation;Gradient,First order 955;Lithuania;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 986;Portugal;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 988;Portugal;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1322;Italy;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1543;Portugal;1091;0;Basic;Numerical Methods;Numerical Methods;Nonlinear equation,Newton’s method 57;Portugal;186;0;Basic;Statistics;Statistics;Population,Sample 1427;Portugal;778;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 965;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 201;Lithuania;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 890;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1525;Portugal;744;0;Basic;Optimization;Linear Optimization;Excel solver add-in,Simplex method,Linear programming 1220;Slovenia;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 91;Lithuania;502;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 955;Lithuania;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 840;Italy;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 717;Portugal;190;1;Basic;Statistics;Statistics;Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance,Median 1247;Portugal;130;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 1024;Lithuania;261;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 986;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1080;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 411;Portugal;271;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 1322;Italy;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 406;Portugal;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 599;Italy;610;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector,Spectrum,Characteristic polynomial 91;Lithuania;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 1220;Slovenia;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 72;Portugal;338;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 167;Portugal;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1243;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1289;Italy;439;0;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 1044;Lithuania;266;1;Basic;Differentiation;Partial Differentiation;First order,Second order 91;Lithuania;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 751;Lithuania;275;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 128;Lithuania;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 177;Italy;665;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1481;Portugal;192;1;Basic;Integration;Integration Techniques;Trigonometric substitution,Simple integration 1288;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1087;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 64;Portugal;94;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 1319;Italy;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 483;Portugal;112;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1044;Lithuania;153;1;Advanced;Differentiation;Partial Differentiation;Stationary point,Minimum,Optimal solution,Lagrange multipliers 203;Lithuania;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1045;Lithuania;268;0;Basic;Differentiation;Partial Differentiation;First order,Second order 351;Portugal;660;0;Advanced;Differentiation;Derivatives;Product rule,Trigonometric rules,Quotient rule 1271;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1150;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 483;Portugal;503;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 669;Portugal;190;0;Basic;Statistics;Statistics;Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance,Median 473;Portugal;359;1;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 885;Italy;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 359;Portugal;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 625;Russian Federation;363;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 375;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 473;Portugal;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 483;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 840;Italy;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1220;Slovenia;454;1;Basic;Linear Algebra;Vector Spaces;Basis 986;Portugal;448;0;Advanced;Linear Algebra;Vector Spaces;Subspace 1518;Portugal;123;1;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 953;Lithuania;77;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 658;Ireland;202;0;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 1023;Lithuania;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 393;Lithuania;347;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 37;Portugal;143;1;Basic;Differentiation;Derivatives;Trigonometric rules,Logarithmic rule 1087;Portugal;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1220;Slovenia;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 378;Portugal;561;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 1146;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 37;Portugal;337;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 72;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 641;Italy;182;0;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 1324;Italy;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 175;Italy;1052;0;Basic;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Algebraic form,Operations with complex numbers,Real part,Equations involving complex numbers 551;Lithuania;329;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1247;Portugal;345;1;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 972;Portugal;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 41;Portugal;165;1;Basic;Differential Equations;Differential Equations;Linear differential equation,Homogeneous equation 422;Portugal;335;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 988;Portugal;243;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 26;Portugal;1144;1;Basic;Set Theory;Set Theory;Subset 455;Portugal;192;0;Basic;Integration;Integration Techniques;Trigonometric substitution,Simple integration 71;Portugal;909;1;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule 91;Lithuania;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 69;Portugal;559;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 1291;Italy;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 175;Italy;329;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1023;Lithuania;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1402;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 876;Italy;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1220;Slovenia;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 473;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1079;Portugal;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 683;Ireland;78;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 1242;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 576;Ireland;546;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonal projection,Distance,Cross product,Orthogonality 1143;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 26;Portugal;560;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 189;Portugal;363;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 359;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1081;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 91;Lithuania;350;0;Advanced;Complex Numbers;Complex Numbers;Complex plane 988;Portugal;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 91;Lithuania;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1087;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 72;Portugal;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1322;Italy;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1122;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1023;Lithuania;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1339;Portugal;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 985;Romania;668;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 600;Italy;234;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 409;Portugal;331;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 552;Portugal;566;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Orthogonality,Locus 175;Italy;338;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 913;Ireland;190;1;Basic;Statistics;Statistics;Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance,Median 1143;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1157;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 599;Italy;606;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector,Diagonalization 80;Lithuania;558;0;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 1026;Lithuania;148;0;Basic;Differentiation;Partial Differentiation;First order 470;Portugal;354;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 91;Lithuania;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1220;Slovenia;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 955;Lithuania;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1023;Lithuania;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 351;Portugal;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 37;Portugal;97;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 979;Portugal;136;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 470;Portugal;563;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 851;Italy;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1247;Portugal;340;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers,Conjugate number 511;Portugal;229;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1311;Italy;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 851;Italy;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 890;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1286;Italy;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 198;Italy;461;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 918;Portugal;94;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 91;Lithuania;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 956;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 80;Lithuania;297;1;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 415;Portugal;132;1;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 700;Portugal;183;0;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 199;Lithuania;114;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 753;Italy;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 969;Romania;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 483;Portugal;795;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 1044;Lithuania;876;1;Basic;Differentiation;Partial Differentiation;Directional derivative,Gradient,First order,Second order 956;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 975;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1252;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1093;Portugal;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 552;Portugal;835;0;Basic;Differential Equations;Differential Equations;Exact differential form,Cauchy problem 1220;Slovenia;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 376;Portugal;347;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 1379;Portugal;920;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 168;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1557;Portugal;920;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1517;Portugal;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1543;Portugal;1112;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1525;Portugal;304;0;Basic;Probability ;Probability ;Addition, multiplication, and total probability rules,Sample space,Event,Axioms of probability 37;Portugal;881;1;Advanced;Differentiation;Partial Differentiation;Directional derivative,Gradient 890;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 393;Lithuania;349;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 955;Lithuania;1110;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1023;Lithuania;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 972;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 311;Ireland;131;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 510;Portugal;497;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1284;Italy;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 177;Italy;735;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 128;Lithuania;642;1;Basic;Linear Algebra;Matrices and Determinants;Symmetric matrix,Matrix multiplication,Matrix operations 28;Portugal;572;1;Basic;Analytic Geometry;Analytic Geometry;Locus,Scalar product,Cross product,Distance,Collinearity,Orthogonality 955;Lithuania;1216;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 913;Ireland;298;0;Basic;Probability ;Probability ;Event,Axioms of probability 91;Lithuania;494;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 376;Portugal;350;0;Advanced;Complex Numbers;Complex Numbers;Complex plane 913;Ireland;948;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 913;Ireland;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 455;Portugal;135;1;Basic;Linear Algebra;Matrices and Determinants;Symmetric matrix,Determinant computation,Determinant properties 1220;Slovenia;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 955;Lithuania;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1229;Portugal;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 552;Portugal;870;0;Basic;Differential Equations;Differential Equations;Homogeneous equation 483;Portugal;522;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Triangles 1379;Portugal;102;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1196;Slovenia;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1171;Portugal;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 407;Portugal;507;0;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry 1292;Italy;849;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 840;Italy;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1333;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 90;Lithuania;342;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 1158;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 80;Lithuania;529;1;Basic;Integration;Double Integration;Iterate integrals 913;Ireland;916;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Square linear system,Consistent system 1244;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 61;Portugal;547;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Orthogonality,Scalar product 165;Portugal;94;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 1288;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1244;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 71;Portugal;1061;1;Basic;Complex Numbers;Complex Numbers;Complex plane 1023;Lithuania;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1163;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 552;Portugal;571;0;Basic;Analytic Geometry;Analytic Geometry;Intersection,Cartesian equations of a plane 91;Lithuania;523;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures,Polygons 91;Lithuania;446;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 26;Portugal;558;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 411;Portugal;629;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue 693;Portugal;181;0;Basic;Statistics;Statistics;Quantile,Frequency,Sample,Mean,Variance,Standard deviation,Median,Mode 91;Lithuania;515;1;Advanced;Fundamental Mathematics;Elementary Geometry;Geometrical figures,Quadrilaterals,Rhombus 91;Lithuania;456;0;Advanced;Fundamental Mathematics;Elementary Geometry;Triangles 899;Lithuania;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 168;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1220;Slovenia;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 625;Russian Federation;790;1;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 1322;Italy;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1481;Portugal;492;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Axioms of probability,Event 956;Portugal;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1331;Portugal;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 71;Portugal;796;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 176;Italy;112;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 411;Portugal;252;0;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Power rule,Trigonometric rules 1109;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1171;Portugal;1016;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 448;Portugal;320;1;Advanced;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 1179;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 168;Portugal;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 1220;Slovenia;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1284;Italy;447;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1284;Italy;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 457;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 913;Ireland;1107;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 411;Portugal;595;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Eigenvalue 965;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 168;Portugal;381;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 899;Lithuania;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 189;Portugal;274;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 128;Lithuania;637;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 1135;Portugal;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 509;Portugal;793;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 511;Portugal;642;1;Basic;Linear Algebra;Matrices and Determinants;Symmetric matrix,Matrix multiplication,Matrix operations 1076;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 1292;Italy;852;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 852;Italy;227;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 168;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1543;Portugal;1096;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1351;Portugal;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 422;Portugal;141;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 26;Portugal;552;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product 551;Lithuania;700;0;Basic;Analytic Geometry;Analytic Geometry;Collinearity,Locus,Orthogonality,Orthogonal projection,Scalar product,Distance 1182;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 91;Lithuania;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 731;Portugal;179;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1411;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1182;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 374;Portugal;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 415;Portugal;634;0;Basic;Linear Algebra;Matrices and Determinants;Determinant properties,Inverse matrix ,Solve matrix equation,Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Commuting matrices,Determinant computation 1179;Portugal;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 974;Portugal;441;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1353;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1533;Portugal;556;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line,Collinearity 625;Russian Federation;464;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometrical figures 1484;Portugal;667;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 986;Portugal;449;1;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 700;Portugal;190;0;Basic;Statistics;Statistics;Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance,Median 1147;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 643;Italy;185;1;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 1288;Portugal;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1196;Slovenia;455;1;Basic;Linear Algebra;Vector Spaces;Basis 175;Italy;1215;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 967;Portugal;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 91;Lithuania;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 509;Portugal;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 175;Italy;1495;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1140;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 966;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 91;Lithuania;504;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 52;Portugal;123;0;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 1077;Portugal;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1220;Slovenia;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1023;Lithuania;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 972;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1256;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 91;Lithuania;334;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 1352;Portugal;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 91;Lithuania;117;1;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 168;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 380;Portugal;864;0;Basic;Optimization;Nonlinear Optimization;Lagrange multipliers,Optimal solution,Minimum,Maximum 69;Portugal;560;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 851;Italy;1246;0;Basic;Optimization;Nonlinear Optimization;Unconstrained optimization,Second derivative test,Optimal solution 693;Portugal;183;0;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 1163;Portugal;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 955;Lithuania;1099;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1565;Portugal;391;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 1185;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1312;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 168;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 91;Lithuania;351;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 634;Italy;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 855;Italy;220;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1179;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 37;Portugal;327;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 509;Portugal;496;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 985;Romania;786;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 890;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 722;Portugal;193;1;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 1044;Lithuania;259;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 720;Portugal;202;1;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 1324;Italy;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 91;Lithuania;513;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 1351;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 37;Portugal;155;0;Basic;Optimization;Nonlinear Optimization;Lagrange multipliers,Maximum,Minimum 340;Portugal;299;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 1220;Slovenia;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 378;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 128;Lithuania;329;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 457;Portugal;333;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 26;Portugal;546;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonal projection,Distance,Cross product,Orthogonality 128;Lithuania;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1288;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1542;Portugal;1099;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1146;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 81;Lithuania;701;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product,Distance 36;Portugal;853;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 81;Lithuania;565;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonal projection,Orthogonality,Collinearity,Locus 311;Ireland;652;1;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 552;Portugal;156;0;Basic;Differential Equations;Differential Equations;Linear differential equation 1220;Slovenia;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1070;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 26;Portugal;231;0;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system,Solution of linear system 1331;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 666;Portugal;186;0;Basic;Statistics;Statistics;Population,Sample 1080;Portugal;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 643;Italy;179;1;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 72;Portugal;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 91;Lithuania;358;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 1093;Portugal;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1288;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1324;Italy;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 37;Portugal;820;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum,Stationary point,Saddle point 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 899;Lithuania;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 918;Portugal;908;0;Basic;Differentiation;Partial Differentiation;Gradient,Directional derivative 71;Portugal;645;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 374;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 913;Ireland;771;0;Basic;Probability ;Probability ;Event,Sample space,Addition, multiplication, and total probability rules,Axioms of probability 1517;Portugal;306;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 1179;Portugal;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1557;Portugal;919;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 91;Lithuania;192;0;Basic;Integration;Integration Techniques;Trigonometric substitution,Simple integration 1220;Slovenia;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 90;Lithuania;360;0;Basic;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 1219;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 636;Italy;77;1;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 851;Italy;1246;0;Basic;Optimization;Nonlinear Optimization;Unconstrained optimization,Second derivative test,Optimal solution 1244;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1080;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 851;Italy;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 776;Portugal;575;0;Advanced;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Cross product,Scalar product 1087;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1505;Portugal;298;1;Basic;Probability ;Probability ;Event,Axioms of probability 71;Portugal;100;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Power rule 884;Italy;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 741;Ireland;478;0;Basic;Graph Theory;Graph Theory;Adjacency matrix 199;Lithuania;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1143;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 80;Lithuania;486;1;Basic;Probability ;Probability ;Event,Addition, multiplication, and total probability rules,Sample space 1292;Italy;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1023;Lithuania;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 689;Portugal;821;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum,Second derivative test,Stationary point,Unconstrained optimization,Saddle point 376;Portugal;356;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers 200;Lithuania;393;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 91;Lithuania;501;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids 1220;Slovenia;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 591;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1331;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1220;Slovenia;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 840;Italy;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 218;Lithuania;667;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 626;Italy;82;0;Basic;Differentiation;Derivatives;Logarithmic rule,Power rule,Exponential rule,Trigonometric rules,Product rule 1220;Slovenia;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1071;Lithuania;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 658;Ireland;181;0;Basic;Statistics;Statistics;Quantile,Frequency,Sample,Mean,Variance,Standard deviation,Median,Mode 26;Portugal;565;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonal projection,Orthogonality,Collinearity,Locus 71;Portugal;326;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 633;Italy;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1565;Portugal;394;0;Basic;Integration;Integration Techniques;Substitution 189;Portugal;144;0;Basic;Differentiation;Derivatives;Trigonometric rules 1220;Slovenia;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1543;Portugal;1088;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 91;Lithuania;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1308;Italy;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 37;Portugal;1201;1;Basic;Integration;Definite Integrals;Fundamental theorem of Calculus,Volume of revolution 422;Portugal;128;1;Advanced;Linear Algebra;Matrices and Determinants;Matrix multiplication,Determinant computation,Determinant properties,Symmetric matrix,Hermitian matrix,Inverse matrix ,Linearly independent rows,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Matrix equivalent - echelon 1220;Slovenia;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1077;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 876;Italy;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1252;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 91;Lithuania;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 80;Lithuania;545;1;Basic;Integration;Double Integration;y-simple region (type I),Area ,Cartesian coordinates 509;Portugal;795;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 72;Portugal;329;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1150;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 90;Lithuania;331;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1543;Portugal;1112;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1291;Italy;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 175;Italy;721;0;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules 168;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 200;Lithuania;113;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 972;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 181;Italy;921;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 91;Lithuania;368;1;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids,Regular polygon 967;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1023;Lithuania;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 176;Italy;735;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 956;Portugal;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1299;Italy;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 218;Lithuania;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 638;Italy;78;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 1517;Portugal;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 1146;Portugal;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 80;Lithuania;215;1;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 1220;Slovenia;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 851;Italy;860;1;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 1109;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1565;Portugal;315;0;Advanced;Integration;Integration Techniques;Integration by parts 979;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 483;Portugal;356;1;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers 1322;Italy;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 986;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1517;Portugal;448;0;Advanced;Linear Algebra;Vector Spaces;Subspace 598;Italy;131;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 411;Portugal;849;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 176;Italy;1121;0;Basic;Differentiation;Derivatives;Trigonometric rules,Quotient rule 955;Lithuania;1088;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 1561;Portugal;718;0;Advanced;Integration;Integration Techniques;Substitution 155;Spain;160;1;Basic;Differential Equations;Differential Equations;Linear differential equation 1291;Italy;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 168;Portugal;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1220;Slovenia;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 510;Portugal;141;0;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 1543;Portugal;1095;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1220;Slovenia;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 986;Portugal;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 751;Lithuania;567;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a line,Orthogonality,Collinearity 151;Portugal;104;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 524;Portugal;217;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 955;Lithuania;1093;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1244;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 851;Italy;1007;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Stationary point,Maximum,Saddle point 407;Portugal;273;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 1241;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 465;Portugal;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 483;Portugal;345;1;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 80;Lithuania;917;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1049;Lithuania;270;0;Basic;Differentiation;Partial Differentiation;First order,Second order 26;Portugal;88;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 1220;Slovenia;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 28;Portugal;573;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Locus,Scalar product,Cross product,Collinearity 510;Portugal;89;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 406;Portugal;218;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 899;Lithuania;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 91;Lithuania;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 351;Portugal;796;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 975;Portugal;131;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 956;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1273;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 72;Portugal;553;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Distance,Scalar product 955;Lithuania;454;0;Basic;Linear Algebra;Vector Spaces;Basis 625;Russian Federation;794;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 198;Italy;666;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1080;Portugal;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 876;Italy;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 81;Lithuania;571;1;Basic;Analytic Geometry;Analytic Geometry;Intersection,Cartesian equations of a plane 1487;Portugal;1197;1;Basic;Integration;Definite Integrals;Area of a planar region ,Fundamental theorem of Calculus 633;Italy;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 189;Portugal;729;1;Basic;Differentiation;Derivatives;Quotient rule 1564;Portugal;142;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 1166;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1077;Portugal;439;0;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 776;Portugal;552;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1023;Lithuania;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1146;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 397;Portugal;333;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 956;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1044;Lithuania;259;1;Basic;Differentiation;Partial Differentiation;First order,Gradient 351;Portugal;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1284;Italy;419;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 37;Portugal;879;1;Basic;Differentiation;Partial Differentiation;First order,Second order 128;Lithuania;326;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 658;Ireland;179;1;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1334;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1056;Lithuania;256;0;Basic;Differentiation;Partial Differentiation;First order 72;Portugal;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 840;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1143;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 967;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1220;Slovenia;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 175;Italy;1477;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 898;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1281;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 753;Italy;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1220;Slovenia;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 972;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1023;Lithuania;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1517;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1087;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1564;Portugal;686;0;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 81;Lithuania;470;0;Advanced;Graph Theory;Graph Theory;Simple graph,Adjacency matrix 204;Lithuania;114;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 986;Portugal;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 890;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 600;Italy;89;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1505;Portugal;736;0;Basic;Optimization;Linear Optimization;Linear programming,Excel solver add-in,Simplex method 1076;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 176;Italy;613;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 411;Portugal;645;1;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 956;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1093;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 988;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1192;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 582;Lithuania;354;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 168;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1220;Slovenia;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 85;Lithuania;374;0;Basic;Graph Theory;Graph Theory;Tree,Spanning tree 549;Portugal;230;1;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 422;Portugal;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1150;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 852;Italy;88;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 1182;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1026;Lithuania;147;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 1557;Portugal;983;0;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 890;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 175;Italy;1108;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 509;Portugal;523;0;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures,Polygons 684;Ireland;211;1;Basic;Statistics;Statistics;Linear regression 189;Portugal;371;0;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Geometrical figures 1079;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 91;Lithuania;498;0;Advanced;Fundamental Mathematics;Elementary Geometry;Triangles,Classification of geometrical figures,Geometrical figures 311;Ireland;130;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 1256;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 776;Portugal;702;0;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Intersection,Cartesian equations of a line 1087;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 175;Italy;1111;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 898;Portugal;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 1179;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 552;Portugal;683;0;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Domain 1289;Italy;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1044;Lithuania;998;1;Basic;Differentiation;Partial Differentiation;First order 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 625;Russian Federation;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 165;Portugal;828;0;Basic;Differential Equations;Differential Equations;Linear differential equation 986;Portugal;778;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 80;Lithuania;698;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Distance 1542;Portugal;1100;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 72;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1543;Portugal;1096;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 470;Portugal;563;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 986;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 61;Portugal;889;0;Basic;Differential Equations;Differential Equations;Linear differential equation 378;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1093;Portugal;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 411;Portugal;616;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector 359;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1150;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 71;Portugal;701;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Cross product,Distance 1269;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1182;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 853;Italy;221;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1244;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 81;Lithuania;572;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Scalar product,Cross product,Distance,Collinearity,Orthogonality 81;Lithuania;564;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonality 91;Lithuania;520;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 91;Lithuania;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1289;Italy;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 955;Lithuania;432;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 168;Portugal;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1220;Slovenia;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1273;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 884;Italy;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 955;Lithuania;1110;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 483;Portugal;347;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 1135;Portugal;382;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 175;Italy;271;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 955;Lithuania;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 407;Portugal;82;0;Basic;Differentiation;Derivatives;Logarithmic rule,Power rule,Exponential rule,Trigonometric rules,Product rule 972;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 955;Lithuania;1099;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 175;Italy;144;0;Basic;Differentiation;Derivatives;Trigonometric rules 26;Portugal;244;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 426;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 582;Lithuania;548;1;Basic;Analytic Geometry;Analytic Geometry;Collinearity,Distance,Locus,Cross product,Orthogonality,Scalar product 855;Italy;231;0;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system,Solution of linear system 625;Russian Federation;367;0;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures 855;Italy;239;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 470;Portugal;699;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Locus,Intersection,Cartesian equations of a line 380;Portugal;356;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers 163;Portugal;327;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1034;Lithuania;878;0;Basic;Differentiation;Partial Differentiation;Second order,First order 691;Portugal;190;1;Basic;Statistics;Statistics;Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance,Median 639;Italy;182;0;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 1564;Portugal;921;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 966;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 351;Portugal;147;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 359;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 511;Portugal;230;1;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1565;Portugal;678;1;Basic;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 1219;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 852;Italy;219;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 80;Lithuania;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 91;Lithuania;501;0;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids 26;Portugal;765;1;Basic;Probability ;Probability ;Addition, multiplication, and total probability rules 1557;Portugal;83;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 1219;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1269;Portugal;439;0;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 1288;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 168;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 176;Italy;923;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1150;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 26;Portugal;165;1;Basic;Differential Equations;Differential Equations;Linear differential equation,Homogeneous equation 1087;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1428;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 663;Portugal;77;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 719;Portugal;186;0;Basic;Statistics;Statistics;Population,Sample 181;Italy;922;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 657;Ireland;184;1;Basic;Statistics;Statistics;Frequency,Sample,Stem and Leaf diagram,Variance,Standard deviation,Relative frequency 1363;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1340;Portugal;1106;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 524;Portugal;519;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1291;Italy;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1543;Portugal;1120;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 966;Portugal;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 969;Romania;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 411;Portugal;127;0;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Determinant computation,Determinant properties,Symmetric matrix,Inverse matrix ,Linearly independent rows,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank 175;Italy;272;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 955;Lithuania;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1220;Slovenia;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 468;Portugal;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 643;Italy;177;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1080;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 376;Portugal;352;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 913;Ireland;492;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Axioms of probability,Event 717;Portugal;185;1;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 1284;Italy;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 37;Portugal;262;0;Basic;Differentiation;Partial Differentiation;First order 549;Portugal;948;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 1334;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 551;Lithuania;553;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Distance,Scalar product 91;Lithuania;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1338;Portugal;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 876;Italy;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 697;Portugal;77;1;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 1220;Slovenia;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 955;Lithuania;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 986;Portugal;645;1;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 1543;Portugal;1104;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1505;Portugal;737;0;Basic;Optimization;Linear Optimization;Linear programming 91;Lithuania;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1185;Portugal;783;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 890;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 151;Portugal;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 986;Portugal;123;1;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 91;Lithuania;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 986;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 509;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1179;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 414;Portugal;229;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1093;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 374;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 80;Lithuania;338;1;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 634;Italy;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 422;Portugal;331;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 483;Portugal;505;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangles 1252;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 91;Lithuania;502;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 1256;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1292;Italy;292;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 64;Portugal;1123;1;Basic;Integration;Integration Techniques;Integration by parts,Substitution,Simple integration,Direct inspection 955;Lithuania;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 509;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 91;Lithuania;351;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 1220;Slovenia;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 378;Portugal;558;1;Basic;Analytic Geometry;Analytic Geometry;Cross product,Cartesian equations of a plane,Orthogonality,Cartesian equations of a line 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1292;Italy;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 851;Italy;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 651;Ireland;185;1;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 1028;Lithuania;912;0;Basic;Differentiation;Partial Differentiation;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 663;Portugal;78;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 1220;Slovenia;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 426;Portugal;333;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 973;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1087;Portugal;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 393;Lithuania;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 890;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1109;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1292;Italy;616;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector 958;Lithuania;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1275;Lithuania;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1516;Portugal;157;1;Basic;Differential Equations;Differential Equations;Homogeneous equation,Cauchy problem 168;Portugal;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 240;Lithuania;923;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 966;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 71;Portugal;1061;1;Basic;Complex Numbers;Complex Numbers;Complex plane 1252;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 955;Lithuania;1100;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 198;Italy;518;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 852;Italy;243;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1272;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 468;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 913;Ireland;1114;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 64;Portugal;551;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality 175;Italy;331;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 552;Portugal;928;0;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 80;Lithuania;246;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 851;Italy;1247;0;Basic;Optimization;Nonlinear Optimization;Unconstrained optimization,Second derivative test,Optimal solution 853;Italy;230;1;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1093;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 855;Italy;225;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 41;Portugal;575;1;Advanced;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Cross product,Scalar product 898;Portugal;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 455;Portugal;136;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 1076;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 855;Italy;234;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 651;Ireland;186;0;Basic;Statistics;Statistics;Population,Sample 969;Romania;439;1;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 1284;Italy;420;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1070;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1292;Italy;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 525;Portugal;789;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1324;Italy;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1481;Portugal;679;0;Basic;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 421;Portugal;331;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 37;Portugal;274;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 1352;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1080;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 197;Portugal;614;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 91;Lithuania;347;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 955;Lithuania;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1518;Portugal;136;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 1076;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1229;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 511;Portugal;795;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 955;Lithuania;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 1487;Portugal;272;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 168;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 979;Portugal;1101;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1196;Slovenia;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;454;0;Basic;Linear Algebra;Vector Spaces;Basis 393;Lithuania;347;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 168;Portugal;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1252;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1023;Lithuania;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1146;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 37;Portugal;304;0;Basic;Probability ;Probability ;Addition, multiplication, and total probability rules,Sample space,Event,Axioms of probability 85;Lithuania;1157;0;Basic;Set Theory;Set Theory;Subset 1179;Portugal;382;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1505;Portugal;181;0;Basic;Statistics;Statistics;Quantile,Frequency,Sample,Mean,Variance,Standard deviation,Median,Mode 374;Portugal;345;1;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 359;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 41;Portugal;507;0;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry 176;Italy;108;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 71;Portugal;596;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Eigenvalue 525;Portugal;524;0;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Rhombus 41;Portugal;561;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 72;Portugal;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 667;Portugal;190;1;Basic;Statistics;Statistics;Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance,Median 1220;Slovenia;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1543;Portugal;1110;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 853;Italy;916;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Square linear system,Consistent system 1292;Italy;382;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 913;Ireland;449;1;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 524;Portugal;118;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 966;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 473;Portugal;355;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 131;Lithuania;586;1;Advanced;Graph Theory;Graph Theory;Adjacency matrix 448;Portugal;318;1;Advanced;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 1292;Italy;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 81;Lithuania;556;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line,Collinearity 41;Portugal;211;0;Basic;Statistics;Statistics;Linear regression 1220;Slovenia;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 986;Portugal;424;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 378;Portugal;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1087;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1148;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1220;Slovenia;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 155;Spain;274;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 1135;Portugal;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1076;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 340;Portugal;295;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 340;Portugal;320;0;Advanced;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 625;Russian Federation;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 753;Italy;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1256;Portugal;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1274;Portugal;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1146;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 913;Ireland;1110;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 626;Italy;274;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 1220;Slovenia;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1557;Portugal;694;1;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 1197;Slovenia;446;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1518;Portugal;645;1;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 1273;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1093;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1220;Slovenia;455;1;Basic;Linear Algebra;Vector Spaces;Basis 311;Ireland;636;0;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 168;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 69;Portugal;556;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line,Collinearity 1023;Lithuania;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 524;Portugal;368;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids,Regular polygon 36;Portugal;288;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 986;Portugal;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1150;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 181;Italy;83;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 394;Portugal;351;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 1331;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1150;Portugal;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1271;Portugal;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 90;Lithuania;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1219;Portugal;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 28;Portugal;242;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1140;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 37;Portugal;1010;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum 918;Portugal;273;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 1219;Portugal;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 81;Lithuania;938;1;Advanced;Graph Theory;Graph Theory;Chromatic number 26;Portugal;697;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Distance,Cross product 1220;Slovenia;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1248;Italy;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1517;Portugal;783;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 1271;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1146;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 898;Portugal;1053;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 599;Italy;856;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Diagonalization,Spectrum,Characteristic polynomial 853;Italy;948;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 72;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 81;Lithuania;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 168;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 955;Lithuania;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 1220;Slovenia;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 979;Portugal;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1525;Portugal;740;0;Advanced;Optimization;Linear Optimization;Linear programming 80;Lithuania;282;0;Basic;Optimization;Linear Optimization;Linear programming 1543;Portugal;1105;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1087;Portugal;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1351;Portugal;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 855;Italy;217;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 174;Portugal;327;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 973;Portugal;635;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 37;Portugal;521;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Regular polygon 473;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1253;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 72;Portugal;653;0;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix rank 311;Ireland;645;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 965;Portugal;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 91;Lithuania;505;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangles 1351;Portugal;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1271;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1197;Slovenia;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 394;Portugal;347;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 403;Portugal;345;1;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 642;Italy;211;1;Basic;Statistics;Statistics;Linear regression 1077;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 966;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1284;Italy;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 168;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 899;Lithuania;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 71;Portugal;327;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1023;Lithuania;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 37;Portugal;821;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum,Second derivative test,Stationary point,Unconstrained optimization,Saddle point 1220;Slovenia;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1256;Portugal;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 426;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 693;Portugal;211;1;Basic;Statistics;Statistics;Linear regression 851;Italy;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 972;Portugal;289;0;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 380;Portugal;333;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1518;Portugal;635;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 1219;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 535;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 666;Portugal;190;1;Basic;Statistics;Statistics;Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance,Median 972;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 600;Italy;138;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Determinant computation,Determinant properties,Inverse matrix 91;Lithuania;500;0;Advanced;Fundamental Mathematics;Elementary Geometry;Geometrical figures,Triangles,Classification of geometrical figures 1375;Portugal;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1080;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 72;Portugal;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 168;Portugal;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 1220;Slovenia;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 57;Portugal;79;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 851;Italy;1007;1;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Stationary point,Maximum,Saddle point 1351;Portugal;380;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;455;1;Basic;Linear Algebra;Vector Spaces;Basis 884;Italy;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 378;Portugal;289;0;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1517;Portugal;432;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 1023;Lithuania;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 151;Portugal;104;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1284;Italy;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1339;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1252;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 26;Portugal;568;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 969;Romania;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1252;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 972;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1044;Lithuania;880;0;Advanced;Differentiation;Partial Differentiation;First order,Directional derivative,Gradient 1322;Italy;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 955;Lithuania;1099;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 955;Lithuania;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 411;Portugal;335;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 1034;Lithuania;264;0;Basic;Differentiation;Partial Differentiation;Chain rule 956;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1163;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1319;Italy;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 448;Portugal;310;1;Advanced;Probability ;Probability ;Direct inspection,Simple integration 91;Lithuania;521;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Regular polygon 349;Portugal;271;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 1292;Italy;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 509;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 1220;Slovenia;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1220;Slovenia;454;1;Basic;Linear Algebra;Vector Spaces;Basis 483;Portugal;98;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 406;Portugal;215;1;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 884;Italy;446;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1274;Portugal;120;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 751;Lithuania;697;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Distance,Cross product 91;Lithuania;519;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1517;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 955;Lithuania;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 26;Portugal;698;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Distance 663;Portugal;187;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 1350;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 625;Russian Federation;664;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 166;Portugal;646;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Commuting matrices,Solve matrix equation,Determinant computation,Inverse matrix ,Matrix rank,Determinant properties,Matrix multiplication,Symmetric matrix 1022;Lithuania;959;0;Basic;Optimization;Linear Optimization;Linear programming 876;Italy;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 966;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 409;Portugal;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 72;Portugal;326;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number,Real part 468;Portugal;345;1;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 955;Lithuania;1112;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1220;Slovenia;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 853;Italy;215;0;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Inconsistent system,Solution of linear system 692;Portugal;180;1;Basic;Statistics;Statistics;Mean,Median,Mode 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 168;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 37;Portugal;192;0;Basic;Integration;Integration Techniques;Trigonometric substitution,Simple integration 1557;Portugal;925;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 351;Portugal;102;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 422;Portugal;342;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 189;Portugal;798;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 524;Portugal;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 465;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 972;Portugal;439;0;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 552;Portugal;868;1;Basic;Differential Equations;Differential Equations;Separable variables equation 1109;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 468;Portugal;358;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 890;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 91;Lithuania;516;1;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 1179;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 913;Ireland;441;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1109;Portugal;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 955;Lithuania;1101;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 510;Portugal;608;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector 359;Portugal;501;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids 1557;Portugal;834;1;Basic;Differential Equations;Differential Equations;Linear differential equation 884;Italy;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1230;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 483;Portugal;496;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 552;Portugal;87;0;Advanced;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 669;Portugal;193;1;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 1427;Portugal;380;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 80;Lithuania;335;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 1276;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 359;Portugal;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 985;Romania;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 890;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 967;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1350;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1341;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 239;Lithuania;273;1;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 91;Lithuania;349;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 1220;Slovenia;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1220;Slovenia;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1543;Portugal;1106;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 168;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 660;Portugal;202;0;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 741;Ireland;180;1;Basic;Statistics;Statistics;Mean,Median,Mode 634;Italy;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 972;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1023;Lithuania;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1194;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 311;Ireland;644;1;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Determinant computation,Matrix rank,Inverse matrix ,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 151;Portugal;113;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 633;Italy;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1284;Italy;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1289;Italy;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 380;Portugal;871;0;Basic;Differential Equations;Differential Equations;Cauchy problem,Exact differential form 1511;Portugal;563;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 1220;Slovenia;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1220;Slovenia;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 525;Portugal;518;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 884;Italy;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 37;Portugal;153;1;Advanced;Differentiation;Partial Differentiation;Stationary point,Minimum,Optimal solution,Lagrange multipliers 411;Portugal;360;0;Basic;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 890;Portugal;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1284;Italy;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1039;Lithuania;258;1;Basic;Differentiation;Partial Differentiation;First order,Gradient 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1220;Slovenia;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 955;Lithuania;1114;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 311;Ireland;653;1;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix rank 851;Italy;858;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Minimum,Maximum,Stationary point,Saddle point 851;Italy;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 672;Portugal;492;1;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Axioms of probability,Event 426;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 155;Spain;144;0;Basic;Differentiation;Derivatives;Trigonometric rules 510;Portugal;850;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 80;Lithuania;756;1;Basic;Integration;Double Integration;Cartesian coordinates,x-simple region (type II),Changing order of integration 1351;Portugal;382;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 556;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1143;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1135;Portugal;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1271;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 625;Russian Federation;102;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 175;Italy;1521;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Quadratic equations,Simplify expressions,Linear equations 884;Italy;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1289;Italy;439;1;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 986;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 168;Portugal;678;0;Basic;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 1080;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1308;Italy;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1082;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 1517;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 535;Portugal;354;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 468;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 374;Portugal;359;1;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 466;Portugal;333;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 80;Lithuania;307;1;Basic;Probability ;Probability ;Event,Addition, multiplication, and total probability rules,Independence 1023;Lithuania;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1487;Portugal;940;0;Basic;Graph Theory;Graph Theory;Spanning tree,Shortest path,Path,Tree 426;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1087;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 986;Portugal;451;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 986;Portugal;643;1;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties,Hermitian matrix,Matrix multiplication,Linearly independent rows,Symmetric matrix,Matrix operations 1122;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1324;Italy;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 913;Ireland;916;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Square linear system,Consistent system 576;Ireland;575;0;Advanced;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Cross product,Scalar product 1339;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1140;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 406;Portugal;787;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 625;Russian Federation;517;1;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 91;Lithuania;516;0;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 80;Lithuania;234;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1220;Slovenia;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 81;Lithuania;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 91;Lithuania;463;1;Basic;Fundamental Mathematics;Elementary Geometry;Polyhedrons,Geometric solids,Classification of geometric solids 174;Portugal;337;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 1411;Portugal;382;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 128;Lithuania;335;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 1525;Portugal;769;0;Advanced;Probability ;Probability ;Bayes' Theorem,Conditional probability 1256;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 91;Lithuania;336;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Modulus of a complex number,Imaginary part 1038;Lithuania;908;0;Basic;Differentiation;Partial Differentiation;Gradient,Directional derivative 69;Portugal;563;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 509;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 576;Ireland;549;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Cross product,Orthogonality 41;Portugal;463;1;Basic;Fundamental Mathematics;Elementary Geometry;Polyhedrons,Geometric solids,Classification of geometric solids 61;Portugal;888;1;Basic;Differential Equations;Differential Equations;Linear differential equation 1402;Portugal;288;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1284;Italy;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 1220;Slovenia;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 955;Lithuania;1114;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1049;Lithuania;657;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 241;Lithuania;603;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector,Spectrum,Characteristic polynomial 91;Lithuania;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1220;Slovenia;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 397;Portugal;352;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 1481;Portugal;714;1;Basic;Integration;Integration Techniques;Simple integration,Direct inspection 1271;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 411;Portugal;597;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Diagonalization,Eigenvalue 351;Portugal;614;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 168;Portugal;379;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 168;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1277;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 634;Italy;273;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 633;Italy;139;0;Advanced;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication,Determinant computation,Determinant properties 91;Lithuania;495;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1023;Lithuania;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1229;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1428;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 967;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 525;Portugal;667;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 71;Portugal;275;0;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 406;Portugal;497;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 1538;Portugal;1097;0;Basic;Numerical Methods;Numerical Methods;Lagrange's interpolation,Polynomial interpolation 955;Lithuania;1105;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 973;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 969;Romania;427;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1505;Portugal;1003;0;Basic;Optimization;Linear Optimization;Linear programming 351;Portugal;795;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 1269;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 72;Portugal;783;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 344;Portugal;734;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Exponential rule 1271;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 394;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1220;Slovenia;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 854;Italy;89;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 240;Lithuania;922;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1487;Portugal;332;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 168;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1517;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 913;Ireland;430;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 712;Portugal;185;0;Basic;Statistics;Statistics;Frequency,Quantile,Mean,Variance,Median,Mode 1150;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 394;Portugal;348;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Complex plane ,Real part 674;Ireland;183;0;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 90;Lithuania;951;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 690;Portugal;191;0;Basic;Statistics;Statistics;Median,Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance 966;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 168;Portugal;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1256;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1543;Portugal;1112;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 753;Italy;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 406;Portugal;635;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 175;Italy;1487;1;Basic;Complex Numbers;Complex Numbers;Modulus of a complex number,Algebraic form,Real part,Equations involving complex numbers,Imaginary part,Conjugate number 380;Portugal;865;1;Basic;Optimization;Nonlinear Optimization;Lagrange multipliers,Minimum,Maximum,Stationary point 80;Lithuania;230;1;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 57;Portugal;190;1;Basic;Statistics;Statistics;Frequency,Mode,Quantile,Population,Data type,Sample,Relative frequency,Mean,Standard deviation,Variance,Median 1194;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 972;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 91;Lithuania;352;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 1219;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 851;Italy;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 28;Portugal;571;1;Basic;Analytic Geometry;Analytic Geometry;Intersection,Cartesian equations of a plane 669;Portugal;184;1;Basic;Statistics;Statistics;Frequency,Sample,Stem and Leaf diagram,Variance,Standard deviation,Relative frequency 720;Portugal;193;1;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 626;Italy;752;1;Basic;Differentiation;Derivatives;Power rule,Quotient rule,Product rule,Trigonometric rules 1056;Lithuania;877;0;Basic;Differentiation;Partial Differentiation;Second order 1081;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1157;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 91;Lithuania;458;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Geometric transformations,Geometrical figures 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 91;Lithuania;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 91;Lithuania;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 198;Italy;364;0;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 986;Portugal;783;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 451;Portugal;318;1;Advanced;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 1271;Portugal;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 411;Portugal;630;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue 1081;Portugal;447;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1023;Lithuania;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 851;Italy;862;1;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 1487;Portugal;1060;0;Basic;Complex Numbers;Complex Numbers;Complex plane 898;Portugal;864;1;Basic;Optimization;Nonlinear Optimization;Lagrange multipliers,Optimal solution,Minimum,Maximum 28;Portugal;180;0;Basic;Statistics;Statistics;Mean,Median,Mode 624;Portugal;364;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 1091;Lithuania;437;1;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1243;Portugal;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1043;Lithuania;873;0;Basic;Differentiation;Partial Differentiation;First order 465;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1292;Italy;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 470;Portugal;359;1;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 626;Italy;921;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1247;Portugal;349;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 81;Lithuania;783;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 965;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1334;Portugal;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1023;Lithuania;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1220;Slovenia;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1220;Slovenia;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 176;Italy;104;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 457;Portugal;333;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1158;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 91;Lithuania;500;1;Advanced;Fundamental Mathematics;Elementary Geometry;Geometrical figures,Triangles,Classification of geometrical figures 1286;Italy;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 168;Portugal;432;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 41;Portugal;549;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Cross product,Orthogonality 1305;Italy;783;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Isomorphism 483;Portugal;340;1;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers,Conjugate number 155;Spain;157;1;Basic;Differential Equations;Differential Equations;Homogeneous equation,Cauchy problem 634;Italy;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1271;Portugal;382;1;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 28;Portugal;187;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 511;Portugal;130;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 448;Portugal;343;0;Advanced;Probability ;Probability ;Conditional probability,Bayes' Theorem 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1557;Portugal;889;1;Basic;Differential Equations;Differential Equations;Linear differential equation 41;Portugal;168;1;Basic;Differential Equations;Differential Equations;Linear differential equation 168;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 168;Portugal;441;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1158;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 625;Russian Federation;795;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 1182;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 524;Portugal;368;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids,Regular polygon 37;Portugal;335;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 986;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1525;Portugal;860;0;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 972;Portugal;375;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1080;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1185;Portugal;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 510;Portugal;668;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 988;Portugal;916;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Square linear system,Consistent system 407;Portugal;614;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 80;Lithuania;160;1;Basic;Differential Equations;Differential Equations;Linear differential equation 1487;Portugal;729;1;Basic;Differentiation;Derivatives;Quotient rule 972;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 974;Portugal;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1292;Italy;622;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 913;Ireland;1131;0;Basic;Set Theory;Set Theory;Subset 898;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 406;Portugal;467;0;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Polygons,Classification of geometrical figures,Geometrical figures 41;Portugal;328;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1338;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 351;Portugal;112;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1542;Portugal;1096;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1026;Lithuania;729;1;Basic;Differentiation;Derivatives;Quotient rule 1543;Portugal;1109;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 1081;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 219;Lithuania;795;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 625;Russian Federation;120;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1140;Portugal;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1195;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1080;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1229;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 403;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1081;Portugal;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 160;Portugal;118;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 81;Lithuania;557;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance 380;Portugal;890;0;Basic;Differential Equations;Differential Equations;Linear differential equation 1288;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 344;Portugal;720;0;Basic;Differentiation;Derivatives;Quotient rule,Trigonometric rules,Logarithmic rule,Product rule 1517;Portugal;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1077;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1351;Portugal;381;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1525;Portugal;763;0;Advanced;Probability ;Probability ;Conditional probability 697;Portugal;178;1;Basic;Statistics;Statistics;Mean,Variance,Standard deviation,Median,Mode 913;Ireland;1118;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1253;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1557;Portugal;83;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 1289;Italy;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 90;Lithuania;132;0;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 913;Ireland;1112;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 168;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1486;Portugal;614;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 174;Portugal;364;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 972;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 71;Portugal;653;0;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix rank 26;Portugal;549;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Cross product,Orthogonality 1023;Lithuania;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1299;Italy;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 511;Portugal;952;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 712;Portugal;177;0;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1517;Portugal;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 524;Portugal;668;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1076;Portugal;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 64;Portugal;309;1;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 375;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1271;Portugal;385;1;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 311;Ireland;645;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 376;Portugal;358;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 91;Lithuania;507;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry 972;Portugal;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 448;Portugal;487;0;Basic;Probability ;Probability ;Axioms of probability,Event,Independence,Addition, multiplication, and total probability rules,Sample space 1333;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 468;Portugal;348;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Complex plane ,Real part 71;Portugal;786;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 979;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1241;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1185;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 91;Lithuania;511;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangle inequality,Triangles 177;Italy;252;0;Basic;Differentiation;Derivatives;Quotient rule,Product rule,Power rule,Trigonometric rules 26;Portugal;567;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a line,Orthogonality,Collinearity 741;Ireland;187;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 638;Italy;193;0;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 1093;Portugal;278;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1291;Italy;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 37;Portugal;703;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Scalar product 1220;Slovenia;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 175;Italy;1096;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 852;Italy;91;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1093;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1273;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 634;Italy;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1289;Italy;449;1;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 1147;Portugal;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 414;Portugal;91;1;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 852;Italy;88;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 876;Italy;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1044;Lithuania;1002;1;Basic;Differentiation;Partial Differentiation;First order 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 41;Portugal;81;0;Basic;Statistics;Statistics;Mean,Median,Mode 898;Portugal;1053;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 1077;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1173;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1319;Italy;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 204;Lithuania;614;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 885;Italy;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 625;Russian Federation;667;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 625;Russian Federation;799;1;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 80;Lithuania;136;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 411;Portugal;624;0;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Characteristic polynomial,Eigenvalue,Diagonalization,Eigenvector,Spectrum 468;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 986;Portugal;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 1091;Lithuania;293;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 750;Portugal;83;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 177;Italy;254;0;Basic;Differentiation;Derivatives;Logarithmic rule,Power rule,Trigonometric rules 1087;Portugal;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 177;Italy;143;0;Basic;Differentiation;Derivatives;Trigonometric rules,Logarithmic rule 1324;Italy;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1244;Portugal;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 576;Ireland;572;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Scalar product,Cross product,Distance,Collinearity,Orthogonality 972;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 674;Ireland;81;0;Basic;Statistics;Statistics;Mean,Median,Mode 510;Portugal;652;0;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 406;Portugal;123;0;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 80;Lithuania;752;1;Basic;Differentiation;Derivatives;Power rule,Quotient rule,Product rule,Trigonometric rules 851;Italy;155;1;Basic;Optimization;Nonlinear Optimization;Lagrange multipliers,Maximum,Minimum 525;Portugal;112;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 955;Lithuania;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 973;Portugal;135;1;Basic;Linear Algebra;Matrices and Determinants;Symmetric matrix,Determinant computation,Determinant properties 1244;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 525;Portugal;668;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 913;Ireland;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1292;Italy;849;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 876;Italy;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1081;Portugal;449;1;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 37;Portugal;1063;1;Basic;Differentiation;Partial Differentiation;Second order,First order 349;Portugal;275;1;Basic;Differentiation;Derivatives;Logarithmic rule,Product rule,Trigonometric rules 26;Portugal;948;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 689;Portugal;860;1;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 72;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 36;Portugal;274;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 1146;Portugal;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1185;Portugal;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1182;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1157;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 26;Portugal;878;1;Basic;Differentiation;Partial Differentiation;Second order,First order 71;Portugal;1099;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1147;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 168;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 455;Portugal;652;1;Basic;Linear Algebra;Matrices and Determinants;Linearly independent rows,Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 473;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1147;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1197;Slovenia;424;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1023;Lithuania;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1185;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 913;Ireland;1105;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1220;Slovenia;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 591;Portugal;335;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 91;Lithuania;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 239;Lithuania;256;0;Basic;Differentiation;Partial Differentiation;First order 1076;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1079;Portugal;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 1147;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 958;Lithuania;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 553;Portugal;630;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue 582;Lithuania;562;0;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 851;Italy;818;0;Basic;Optimization;Nonlinear Optimization;Minimum,Maximum,Stationary point,Second derivative test,Unconstrained optimization,Saddle point,Optimal solution 854;Italy;246;0;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1288;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 986;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 168;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 151;Portugal;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 890;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 376;Portugal;327;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 376;Portugal;357;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 986;Portugal;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 128;Lithuania;330;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number 524;Portugal;504;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 1543;Portugal;1115;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 956;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 41;Portugal;188;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 625;Russian Federation;792;1;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 1543;Portugal;1110;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1093;Portugal;420;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 359;Portugal;351;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 81;Lithuania;561;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 1428;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 470;Portugal;351;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 1220;Slovenia;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 175;Italy;1090;1;Basic;Numerical Methods;Numerical Methods;Nonlinear equation,Newton’s method 918;Portugal;399;0;Basic;Integration;Integration Techniques;Substitution,Direct inspection,Simple integration 174;Portugal;366;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 1322;Italy;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1122;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1044;Lithuania;883;0;Basic;Differentiation;Partial Differentiation;First order,Directional derivative 1023;Lithuania;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 26;Portugal;573;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Locus,Scalar product,Cross product,Collinearity 852;Italy;949;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1427;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 955;Lithuania;1094;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 351;Portugal;796;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 966;Portugal;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 1505;Portugal;308;1;Basic;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 175;Italy;1119;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 913;Ireland;1102;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 175;Italy;1115;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 979;Portugal;1093;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1146;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1220;Slovenia;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 524;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 168;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 174;Portugal;336;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Modulus of a complex number,Imaginary part 1219;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 884;Italy;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1077;Portugal;292;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 394;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1195;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1252;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 168;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 591;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 776;Portugal;576;0;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 966;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1049;Lithuania;148;0;Basic;Differentiation;Partial Differentiation;First order 151;Portugal;114;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 91;Lithuania;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1241;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 419;Portugal;360;0;Basic;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 1076;Portugal;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 510;Portugal;789;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 465;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 72;Portugal;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 380;Portugal;1012;0;Basic;Optimization;Nonlinear Optimization;Optimal solution,Stationary point,Minimum,Maximum,Saddle point 397;Portugal;357;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 851;Italy;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 582;Lithuania;575;0;Advanced;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Cross product,Scalar product 1220;Slovenia;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1516;Portugal;891;0;Basic;Differential Equations;Differential Equations;Linear differential equation 986;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 979;Portugal;1093;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1032;Lithuania;877;1;Basic;Differentiation;Partial Differentiation;Second order 168;Portugal;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 855;Italy;233;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 1334;Portugal;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1220;Slovenia;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 525;Portugal;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 979;Portugal;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 168;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 576;Ireland;553;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Distance,Scalar product 165;Portugal;391;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 955;Lithuania;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 511;Portugal;245;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 483;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 884;Italy;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 913;Ireland;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1292;Italy;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 465;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 168;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 689;Portugal;867;0;Basic;Optimization;Nonlinear Optimization;Stationary point,Maximum,Saddle point,Second derivative test,Optimal solution,Minimum 956;Portugal;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 91;Lithuania;360;0;Basic;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 1220;Slovenia;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 344;Portugal;253;0;Basic;Differentiation;Derivatives;Logarithmic rule,Trigonometric rules 1173;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1220;Slovenia;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 163;Portugal;329;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1284;Italy;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1150;Portugal;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1044;Lithuania;874;0;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule 1147;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1288;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 175;Italy;342;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 625;Russian Federation;121;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1182;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1288;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1095;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 91;Lithuania;439;0;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 955;Lithuania;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 851;Italy;963;0;Basic;Optimization;Nonlinear Optimization;Simplex method,Duality theory 240;Lithuania;919;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1288;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1080;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 510;Portugal;137;0;Basic;Linear Algebra;Matrices and Determinants;Matrix equivalent - echelon,Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Linearly independent rows,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 956;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 898;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 986;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 483;Portugal;523;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures,Polygons 509;Portugal;244;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 840;Italy;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 80;Lithuania;917;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 175;Italy;330;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number 81;Lithuania;582;1;Advanced;Graph Theory;Graph Theory;Path,Cycle and circuit 509;Portugal;636;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 979;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 972;Portugal;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1352;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 409;Portugal;329;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 955;Lithuania;1120;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 351;Portugal;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1487;Portugal;658;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 340;Portugal;300;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 1034;Lithuania;875;0;Basic;Differentiation;Partial Differentiation;Gradient,First order 969;Romania;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 852;Italy;242;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 633;Italy;132;0;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 1087;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1220;Slovenia;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 36;Portugal;292;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 986;Portugal;779;1;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 548;Portugal;300;1;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 689;Portugal;964;1;Basic;Optimization;Nonlinear Optimization;Simplex method,Duality theory 1543;Portugal;1116;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 199;Lithuania;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1282;Portugal;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 956;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1518;Portugal;637;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 85;Lithuania;1151;0;Basic;Set Theory;Set Theory;Subset 1288;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 885;Italy;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 175;Italy;1497;1;Basic;Complex Numbers;Complex Numbers;Imaginary part,Conjugate number,Modulus of a complex number,Algebraic form,Real part,Equations involving complex numbers 511;Portugal;112;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 642;Italy;189;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 985;Romania;143;0;Basic;Differentiation;Derivatives;Trigonometric rules,Logarithmic rule 956;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 36;Portugal;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 913;Ireland;1098;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1044;Lithuania;998;1;Basic;Differentiation;Partial Differentiation;First order 982;Portugal;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 1299;Italy;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1341;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 91;Lithuania;462;1;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids 151;Portugal;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 657;Ireland;211;0;Basic;Statistics;Statistics;Linear regression 1220;Slovenia;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1230;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 899;Lithuania;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1319;Italy;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1047;Lithuania;259;1;Basic;Differentiation;Partial Differentiation;First order,Gradient 451;Portugal;344;1;Advanced;Probability ;Probability ;Event,Independence,Addition, multiplication, and total probability rules 986;Portugal;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 28;Portugal;557;1;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance 359;Portugal;296;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 524;Portugal;666;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 511;Portugal;364;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 966;Portugal;379;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1516;Portugal;892;1;Basic;Differential Equations;Differential Equations;Linear differential equation 91;Lithuania;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 1220;Slovenia;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 898;Portugal;911;1;Basic;Optimization;Nonlinear Optimization;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 576;Ireland;568;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 174;Portugal;98;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 1220;Slovenia;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 41;Portugal;79;1;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 91;Lithuania;515;1;Advanced;Fundamental Mathematics;Elementary Geometry;Geometrical figures,Quadrilaterals,Rhombus 175;Italy;1549;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Linear equations,Quadratic equations 1077;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 411;Portugal;225;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 176;Italy;796;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 625;Russian Federation;614;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1229;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1339;Portugal;278;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 853;Italy;217;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 470;Portugal;345;0;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 972;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 855;Italy;231;1;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system,Solution of linear system 1081;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1046;Lithuania;998;0;Basic;Differentiation;Partial Differentiation;First order 91;Lithuania;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 684;Ireland;177;1;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 426;Portugal;359;1;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 421;Portugal;360;0;Basic;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 378;Portugal;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 198;Italy;367;0;Basic;Fundamental Mathematics;Elementary Geometry;Geometrical figures 91;Lithuania;359;1;Advanced;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 37;Portugal;1032;1;Basic;Differentiation;Partial Differentiation;Power rule,Trigonometric rules,Logarithmic rule,First order 582;Lithuania;570;0;Advanced;Analytic Geometry;Analytic Geometry;Distance,Orthogonal projection,Orthogonality 1543;Portugal;1093;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1157;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1220;Slovenia;454;0;Basic;Linear Algebra;Vector Spaces;Basis 1248;Italy;234;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 168;Portugal;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1375;Portugal;278;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 465;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1256;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 219;Lithuania;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 91;Lithuania;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 411;Portugal;144;0;Basic;Differentiation;Derivatives;Trigonometric rules 71;Portugal;136;0;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 1087;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1518;Portugal;141;1;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Matrix multiplication 168;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 189;Portugal;665;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 175;Italy;1116;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1411;Portugal;781;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1075;Portugal;148;0;Basic;Differentiation;Partial Differentiation;First order 1244;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1291;Italy;292;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 1220;Slovenia;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 658;Ireland;79;0;Basic;Statistics;Statistics;Stem and Leaf diagram,Relative frequency,Sample,Frequency 913;Ireland;487;0;Basic;Probability ;Probability ;Axioms of probability,Event,Independence,Addition, multiplication, and total probability rules,Sample space 840;Italy;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 91;Lithuania;376;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 407;Portugal;97;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Logarithmic rule,Power rule 37;Portugal;1230;1;Basic;Differentiation;Partial Differentiation;Second order,First order 884;Italy;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 72;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1037;Lithuania;998;0;Basic;Differentiation;Partial Differentiation;First order 72;Portugal;385;0;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1220;Slovenia;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1024;Lithuania;877;0;Basic;Differentiation;Partial Differentiation;Second order 457;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 1220;Slovenia;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 899;Lithuania;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 986;Portugal;420;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 511;Portugal;230;1;Basic;Linear Algebra;Linear Systems;Consistent system,Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1219;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 311;Ireland;131;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 378;Portugal;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1179;Portugal;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1197;Slovenia;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 955;Lithuania;1099;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 1220;Slovenia;416;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 972;Portugal;448;0;Advanced;Linear Algebra;Vector Spaces;Subspace 1305;Italy;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1081;Portugal;439;0;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 988;Portugal;216;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 1143;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1505;Portugal;955;0;Basic;Optimization;Linear Optimization;Linear programming 175;Italy;334;1;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 71;Portugal;271;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 64;Portugal;253;1;Basic;Differentiation;Derivatives;Logarithmic rule,Trigonometric rules 311;Ireland;635;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 1517;Portugal;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 378;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;424;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 91;Lithuania;506;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry 128;Lithuania;138;0;Basic;Linear Algebra;Matrices and Determinants;Matrix operations,Determinant computation,Determinant properties,Inverse matrix 71;Portugal;852;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 1182;Portugal;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 155;Spain;165;0;Basic;Differential Equations;Differential Equations;Linear differential equation,Homogeneous equation 551;Lithuania;352;0;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 1220;Slovenia;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 483;Portugal;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 41;Portugal;562;1;Advanced;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 913;Ireland;1108;0;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 667;Portugal;177;1;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1135;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1290;Italy;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 599;Italy;628;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue,Diagonalization 967;Portugal;313;1;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1158;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 840;Italy;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 625;Russian Federation;501;0;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids 1173;Portugal;437;0;Basic;Linear Algebra;Linear Transformations;Linear application,Composition of linear applications 1130;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 876;Italy;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1322;Italy;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1339;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 751;Lithuania;999;0;Basic;Differentiation;Partial Differentiation;First order 1171;Portugal;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 397;Portugal;358;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 1147;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1290;Italy;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 411;Portugal;856;1;Advanced;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Diagonalization,Spectrum,Characteristic polynomial 1032;Lithuania;257;0;Basic;Differentiation;Partial Differentiation;Gradient,First order 1220;Slovenia;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 80;Lithuania;231;1;Basic;Linear Algebra;Linear Systems;Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system,Solution of linear system 876;Italy;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 986;Portugal;293;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 473;Portugal;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 91;Lithuania;356;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers 69;Portugal;565;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonal projection,Orthogonality,Collinearity,Locus 1533;Portugal;564;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonality 988;Portugal;217;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 509;Portugal;635;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 175;Italy;1252;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 956;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1564;Portugal;981;0;Basic;Real Functions of a single variable;Limits and Continuity;Limits 840;Italy;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1275;Lithuania;440;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 64;Portugal;564;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonality 37;Portugal;886;1;Advanced;Differentiation;Partial Differentiation;Second order,First order 1220;Slovenia;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 37;Portugal;394;1;Basic;Integration;Integration Techniques;Substitution 26;Portugal;217;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 204;Lithuania;668;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 80;Lithuania;951;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 340;Portugal;304;0;Basic;Probability ;Probability ;Addition, multiplication, and total probability rules,Sample space,Event,Axioms of probability 840;Italy;778;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 426;Portugal;351;1;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Imaginary part,Complex plane ,Operations with complex numbers,Real part,Principal argument,De Moivre formulas 1082;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1179;Portugal;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 511;Portugal;88;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Square linear system,Solution of linear system,Undetermined solution of linear system,Consistent system 1269;Portugal;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 91;Lithuania;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 851;Italy;911;0;Basic;Optimization;Nonlinear Optimization;Minimum,Stationary point,Maximum,Saddle point,Optimal solution 1288;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1322;Italy;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1300;Italy;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1077;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1279;Portugal;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 548;Portugal;302;0;Basic;Probability ;Probability ;Addition, multiplication, and total probability rules,Sample space,Event,Axioms of probability 510;Portugal;368;0;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids,Regular polygon 1195;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 669;Portugal;81;0;Basic;Statistics;Statistics;Mean,Median,Mode 1269;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 28;Portugal;331;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 69;Portugal;571;1;Basic;Analytic Geometry;Analytic Geometry;Intersection,Cartesian equations of a plane 913;Ireland;243;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 168;Portugal;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 641;Italy;186;0;Basic;Statistics;Statistics;Population,Sample 1352;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 351;Portugal;788;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 411;Portugal;616;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector 913;Ireland;761;1;Basic;Probability ;Probability ;Event,Sample space,Addition, multiplication, and total probability rules,Axioms of probability 1229;Portugal;380;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 91;Lithuania;504;1;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry,Geometric transformations 1517;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 956;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1533;Portugal;557;0;Basic;Analytic Geometry;Analytic Geometry;Locus,Distance 1185;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 468;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 966;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 36;Portugal;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1220;Slovenia;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 876;Italy;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1220;Slovenia;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 769;Portugal;338;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 250;Lithuania;452;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1248;Italy;90;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1194;Portugal;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 80;Lithuania;757;0;Basic;Integration;Double Integration;Iterate integrals,Cartesian coordinates,y-simple region (type I) 1076;Portugal;317;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 979;Portugal;1120;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1271;Portugal;385;1;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 955;Lithuania;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 625;Russian Federation;614;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1487;Portugal;335;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 913;Ireland;211;0;Basic;Statistics;Statistics;Linear regression 1557;Portugal;923;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1517;Portugal;288;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 64;Portugal;406;0;Basic;Integration;Integration Techniques;Direct inspection 90;Lithuania;641;0;Basic;Linear Algebra;Matrices and Determinants;Commuting matrices,Solve matrix equation,Matrix equivalent - echelon,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties,Hermitian matrix,Symmetric matrix,Matrix multiplication,Linearly independent rows,Matrix operations 979;Portugal;1107;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 1195;Portugal;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 168;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1379;Portugal;796;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Logarithmic function,Exponential function,Simplify expressions 1220;Slovenia;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1241;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 890;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 913;Ireland;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 422;Portugal;337;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form,Operations with complex numbers,Modulus of a complex number 697;Portugal;201;0;Basic;Statistics;Statistics;Chi square distribution,Student distribution,Quantile,Hypothesis testing 1220;Slovenia;780;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1220;Slovenia;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 351;Portugal;918;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain 1509;Portugal;83;1;Basic;Real Functions of a single variable;Domain, Image and Graphics;Domain,Image of a function 41;Portugal;114;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 966;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1243;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1158;Portugal;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 483;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1276;Portugal;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1517;Portugal;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 91;Lithuania;517;0;Advanced;Fundamental Mathematics;Elementary Geometry;Symmetry 525;Portugal;113;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 91;Lithuania;519;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 884;Italy;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 349;Portugal;734;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Exponential rule 625;Russian Federation;113;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1045;Lithuania;908;0;Basic;Differentiation;Partial Differentiation;Gradient,Directional derivative 1023;Lithuania;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1252;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1299;Italy;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 525;Portugal;795;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 967;Portugal;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1023;Lithuania;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 637;Italy;182;0;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 1286;Italy;454;0;Basic;Linear Algebra;Vector Spaces;Basis 91;Lithuania;136;1;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 1220;Slovenia;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 168;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 166;Portugal;703;0;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Scalar product 509;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;453;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 851;Italy;861;1;Basic;Optimization;Nonlinear Optimization;Saddle point,Optimal solution,Minimum,Maximum,Stationary point 956;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1087;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1291;Italy;781;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 168;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 473;Portugal;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 61;Portugal;837;0;Basic;Differential Equations;Differential Equations;Linear differential equation 1332;Portugal;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 61;Portugal;870;1;Basic;Differential Equations;Differential Equations;Homogeneous equation 1135;Portugal;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 1023;Lithuania;455;0;Basic;Linear Algebra;Vector Spaces;Basis 403;Portugal;439;0;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 1479;Portugal;955;1;Basic;Optimization;Linear Optimization;Linear programming 168;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 175;Italy;794;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 175;Italy;1117;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1219;Portugal;378;1;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 1505;Portugal;189;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 168;Portugal;785;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 775;Portugal;298;0;Basic;Probability ;Probability ;Event,Axioms of probability 634;Italy;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1229;Portugal;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1197;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1230;Portugal;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1351;Portugal;126;1;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Solve matrix equation 775;Portugal;308;1;Basic;Probability ;Probability ;Axioms of probability,Event,Addition, multiplication, and total probability rules,Sample space 1375;Portugal;306;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 1023;Lithuania;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 898;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1275;Lithuania;432;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 667;Portugal;202;1;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 351;Portugal;793;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Square roots,Simplify expressions 468;Portugal;319;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 359;Portugal;443;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 91;Lithuania;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 966;Portugal;319;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation,Linear application,Linearity 1352;Portugal;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 91;Lithuania;505;1;Basic;Fundamental Mathematics;Elementary Geometry;Triangles 1352;Portugal;290;1;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 1284;Italy;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 1220;Slovenia;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1022;Lithuania;738;0;Basic;Optimization;Linear Optimization;Graphical method,Linear programming 1023;Lithuania;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 359;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 91;Lithuania;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 91;Lithuania;345;1;Advanced;Complex Numbers;Complex Numbers;Polar representation,Trigonometric form,Modulus of a complex number,Operations with complex numbers,Algebraic form,Principal argument,De Moivre formulas 380;Portugal;169;0;Basic;Differential Equations;Differential Equations;Linear differential equation 986;Portugal;447;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 1334;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1543;Portugal;1114;1;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 1220;Slovenia;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 852;Italy;246;0;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 1220;Slovenia;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 378;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 411;Portugal;342;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 913;Ireland;492;1;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Axioms of probability,Event 1308;Italy;782;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 359;Portugal;364;1;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids,Geometrical figures,Classification of geometric solids 1220;Slovenia;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1308;Italy;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 986;Portugal;427;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 71;Portugal;771;1;Basic;Probability ;Probability ;Event,Sample space,Addition, multiplication, and total probability rules,Axioms of probability 394;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 625;Russian Federation;800;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Exponential function,Simplify expressions 899;Lithuania;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 1143;Portugal;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1286;Italy;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 91;Lithuania;346;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Operations with complex numbers,Conjugate number,Real part 851;Italy;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 351;Portugal;666;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 380;Portugal;868;0;Basic;Differential Equations;Differential Equations;Separable variables equation 36;Portugal;607;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector 1220;Slovenia;444;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1279;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1023;Lithuania;455;1;Basic;Linear Algebra;Vector Spaces;Basis 1171;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1525;Portugal;295;0;Basic;Probability ;Probability ;Sample space,Addition, multiplication, and total probability rules,Event,Axioms of probability 1163;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1220;Slovenia;425;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 966;Portugal;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 81;Lithuania;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 81;Lithuania;288;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 462;Lithuania;645;1;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Linearly independent rows 1220;Slovenia;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1379;Portugal;798;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 972;Portugal;443;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Range,Kernel,Isomorphism 741;Ireland;935;0;Basic;Graph Theory;Graph Theory;Chromatic number 1288;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 351;Portugal;612;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 986;Portugal;449;1;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 26;Portugal;566;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Orthogonality,Locus 168;Portugal;455;0;Basic;Linear Algebra;Vector Spaces;Basis 955;Lithuania;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1135;Portugal;782;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1087;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 591;Portugal;341;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 876;Italy;385;1;Advanced;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1219;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 420;Portugal;327;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1044;Lithuania;885;0;Basic;Differentiation;Partial Differentiation;Second order,First order 26;Portugal;1157;1;Basic;Set Theory;Set Theory;Subset 1220;Slovenia;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1195;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1543;Portugal;1092;0;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 827;Italy;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 168;Portugal;291;1;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 535;Portugal;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 852;Italy;239;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 851;Italy;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1274;Portugal;787;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Logarithmic function 1350;Portugal;450;0;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1286;Italy;451;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 80;Lithuania;549;1;Basic;Analytic Geometry;Analytic Geometry;Distance,Cross product,Orthogonality 776;Portugal;570;0;Advanced;Analytic Geometry;Analytic Geometry;Distance,Orthogonal projection,Orthogonality 1071;Lithuania;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1290;Italy;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1564;Portugal;680;0;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 1289;Italy;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 884;Italy;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 1077;Portugal;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 473;Portugal;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1093;Portugal;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 239;Lithuania;255;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Logarithmic rule 958;Lithuania;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 422;Portugal;327;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1219;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1252;Portugal;776;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 884;Italy;287;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 639;Italy;202;0;Basic;Statistics;Statistics;Student distribution,Confidence interval,Point estimate,Hypothesis testing 168;Portugal;444;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 972;Portugal;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 80;Lithuania;788;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions,Exponential function 451;Portugal;307;0;Basic;Probability ;Probability ;Event,Addition, multiplication, and total probability rules,Independence 1557;Portugal;926;0;Advanced;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 625;Russian Federation;495;0;Basic;Fundamental Mathematics;Elementary Geometry;Polygons 61;Portugal;831;0;Basic;Differential Equations;Differential Equations;Linear differential equation 37;Portugal;1084;1;Advanced;Differentiation;Partial Differentiation;First order,Second order 625;Russian Federation;522;1;Basic;Fundamental Mathematics;Elementary Geometry;Polygons,Triangles 1147;Portugal;455;1;Basic;Linear Algebra;Vector Spaces;Basis 376;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 986;Portugal;640;0;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties 91;Lithuania;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1324;Italy;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1143;Portugal;277;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 955;Lithuania;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 988;Portugal;950;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1197;Slovenia;449;0;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 890;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1352;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1157;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 177;Italy;730;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Logarithmic rule 91;Lithuania;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1080;Portugal;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 851;Italy;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1256;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 37;Portugal;1123;1;Basic;Integration;Integration Techniques;Integration by parts,Substitution,Simple integration,Direct inspection 1220;Slovenia;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 1312;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 913;Ireland;441;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span 37;Portugal;1076;0;Basic;Differentiation;Partial Differentiation;Logarithmic rule,Power rule,Trigonometric rules 1241;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 91;Lithuania;459;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1220;Slovenia;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1044;Lithuania;875;1;Basic;Differentiation;Partial Differentiation;Gradient,First order 311;Ireland;647;0;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations 1081;Portugal;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1220;Slovenia;438;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 411;Portugal;335;0;Basic;Complex Numbers;Complex Numbers;Algebraic form,Principal argument,De Moivre formulas,Polar representation,Operations with complex numbers,Modulus of a complex number,Trigonometric form 376;Portugal;356;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers 406;Portugal;91;0;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 81;Lithuania;481;1;Advanced;Graph Theory;Graph Theory;Path,Simple graph,Cycle and circuit 375;Portugal;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1252;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 168;Portugal;446;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 175;Italy;1514;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers 1220;Slovenia;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 986;Portugal;419;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 1087;Portugal;784;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1273;Portugal;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 128;Lithuania;338;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 1220;Slovenia;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 986;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 422;Portugal;651;0;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Symmetric matrix,Matrix operations,Commuting matrices,Solve matrix equation,Inverse matrix ,Determinant computation,Matrix rank,Determinant properties 591;Portugal;452;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 175;Italy;1093;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 899;Lithuania;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1028;Lithuania;268;0;Basic;Differentiation;Partial Differentiation;First order,Second order 376;Portugal;329;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 913;Ireland;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 884;Italy;776;1;Basic;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 374;Portugal;241;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1023;Lithuania;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 552;Portugal;869;0;Basic;Differential Equations;Differential Equations;Separable variables equation 1288;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1049;Lithuania;253;0;Basic;Differentiation;Derivatives;Logarithmic rule,Trigonometric rules 1543;Portugal;1086;0;Basic;Numerical Methods;Numerical Methods;First order,Second order 1288;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 483;Portugal;415;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 414;Portugal;336;0;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,Operations with complex numbers,Modulus of a complex number,Imaginary part 394;Portugal;447;0;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 913;Ireland;1103;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Newton’s interpolation 509;Portugal;114;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 64;Portugal;120;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 131;Lithuania;117;0;Advanced;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1220;Slovenia;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1269;Portugal;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 751;Lithuania;703;1;Basic;Analytic Geometry;Analytic Geometry;Orthogonality,Scalar product 1288;Portugal;289;0;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 511;Portugal;245;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1220;Slovenia;453;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 91;Lithuania;355;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 81;Lithuania;937;0;Advanced;Graph Theory;Graph Theory;Chromatic number 753;Italy;1000;0;Basic;Differentiation;Partial Differentiation;First order 202;Lithuania;798;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 376;Portugal;358;0;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Conjugate number,Operations with complex numbers,Real part 1220;Slovenia;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 651;Ireland;187;0;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 414;Portugal;227;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 855;Italy;218;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 965;Portugal;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 36;Portugal;1133;1;Basic;Set Theory;Set Theory;Subset 1220;Slovenia;784;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 913;Ireland;1251;0;Basic;Numerical Methods;Numerical Methods;Newton’s interpolation,Polynomial interpolation 899;Lithuania;321;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 974;Portugal;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1087;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 1299;Italy;383;1;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1517;Portugal;418;0;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 974;Portugal;1088;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 155;Spain;148;1;Basic;Differentiation;Partial Differentiation;First order 1173;Portugal;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1252;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 69;Portugal;353;1;Basic;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 1135;Portugal;288;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 1023;Lithuania;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 955;Lithuania;426;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 524;Portugal;127;1;Basic;Linear Algebra;Matrices and Determinants;Matrix multiplication,Determinant computation,Determinant properties,Symmetric matrix,Inverse matrix ,Linearly independent rows,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank 1220;Slovenia;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 525;Portugal;120;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 91;Lithuania;355;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 1322;Italy;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1109;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 90;Lithuania;355;0;Advanced;Complex Numbers;Complex Numbers;Nth root,Polar representation,Operations with complex numbers,Principal argument,De Moivre formulas 1087;Portugal;450;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 168;Portugal;595;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Eigenvalue 988;Portugal;233;1;Basic;Linear Algebra;Linear Systems;Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system,Inconsistent system 1427;Portugal;380;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 700;Portugal;201;1;Basic;Statistics;Statistics;Chi square distribution,Student distribution,Quantile,Hypothesis testing 69;Portugal;548;1;Basic;Analytic Geometry;Analytic Geometry;Collinearity,Distance,Locus,Cross product,Orthogonality,Scalar product 349;Portugal;82;0;Basic;Differentiation;Derivatives;Logarithmic rule,Power rule,Exponential rule,Trigonometric rules,Product rule 387;Portugal;423;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1487;Portugal;1164;1;Basic;Integration;Definite Integrals;Direct integrals ,Fundamental theorem of Calculus 411;Portugal;414;0;Basic;Integration;Integration Techniques;Substitution,Direct inspection,Integration by parts,Rational functions 1332;Portugal;438;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 394;Portugal;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 198;Italy;524;0;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Rhombus 599;Italy;594;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Spectrum,Characteristic polynomial,Diagonalization,Eigenvalue 91;Lithuania;430;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1082;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;321;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 57;Portugal;1212;1;Basic;Statistics;Statistics;Mean,Median,Outliers,Interquartile range 71;Portugal;123;1;Basic;Linear Algebra;Matrices and Determinants;Inverse matrix ,Commuting matrices,Solve matrix equation,Matrix operations,Matrix rank,Determinant computation,Matrix multiplication,Determinant properties,Symmetric matrix 71;Portugal;753;1;Basic;Differentiation;Derivatives;Exponential rule 1220;Slovenia;428;1;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1517;Portugal;292;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism 1308;Italy;306;1;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 1220;Slovenia;384;1;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 986;Portugal;418;1;Advanced;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;375;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1505;Portugal;183;1;Basic;Statistics;Statistics;Quantile,Population,Sample,Mean,Variance,Standard deviation,Median,Mode 351;Portugal;100;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule,Sum rule,Power rule 1109;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 955;Lithuania;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 552;Portugal;575;1;Advanced;Analytic Geometry;Analytic Geometry;Orthogonality,Orthogonal projection,Cross product,Scalar product 899;Lithuania;417;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1075;Portugal;908;1;Basic;Differentiation;Partial Differentiation;Gradient,Directional derivative 956;Portugal;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1077;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1044;Lithuania;263;1;Basic;Differentiation;Partial Differentiation;First order 1557;Portugal;693;1;Advanced;Real Functions of a single variable;Limits and Continuity;Limits,Indeterminate forms 1220;Slovenia;287;0;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1483;Portugal;327;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 1305;Italy;778;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1081;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 468;Portugal;333;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 751;Lithuania;734;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules,Exponential rule 1039;Lithuania;264;0;Basic;Differentiation;Partial Differentiation;Chain rule 973;Portugal;630;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue 776;Portugal;564;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Scalar product,Cross product,Orthogonality 1081;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 851;Italy;378;0;Basic;Linear Algebra;Linear Transformations;Invertible linear operator,Isomorphism,Injective linear application 359;Portugal;432;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 28;Portugal;563;1;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 483;Portugal;368;1;Basic;Fundamental Mathematics;Elementary Geometry;Platonic solids,Regular polygon 1220;Slovenia;323;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 90;Lithuania;126;0;Advanced;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Solve matrix equation 641;Italy;187;1;Basic;Statistics;Statistics;Mode,Quantile,Population,Data type,Sample,Mean,Standard deviation,Variance,Median 854;Italy;243;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 972;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 1039;Lithuania;908;0;Basic;Differentiation;Partial Differentiation;Gradient,Directional derivative 840;Italy;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 511;Portugal;221;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 37;Portugal;399;1;Basic;Integration;Integration Techniques;Substitution,Direct inspection,Simple integration 840;Italy;306;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel,Isomorphism,Injective linear application 407;Portugal;329;1;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 661;Portugal;193;0;Basic;Statistics;Statistics;Standard deviation,Variance,Median,Frequency,Mode,Outliers,Quantile,Interquartile range,Population,Data type,Sample,Relative frequency,Mean 1481;Portugal;681;0;Basic;Real Functions of a single variable;Limits and Continuity;Indeterminate forms,Limits 387;Portugal;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 376;Portugal;357;1;Advanced;Complex Numbers;Complex Numbers;Imaginary part,Modulus of a complex number,Algebraic form,Conjugate number,Real part,Equations involving complex numbers 1076;Portugal;454;0;Basic;Linear Algebra;Vector Spaces;Basis 80;Lithuania;229;0;Basic;Linear Algebra;Linear Systems;Consistent system,Inconsistent system,Solution of linear system,Undetermined solution of linear system 414;Portugal;951;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 551;Lithuania;342;0;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 71;Portugal;560;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Orthogonality 1517;Portugal;451;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 175;Italy;1473;0;Basic;Complex Numbers;Complex Numbers;Principal argument,Trigonometric form,Modulus of a complex number,Algebraic form 633;Italy;448;1;Advanced;Linear Algebra;Vector Spaces;Subspace 576;Ireland;561;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 175;Italy;327;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 80;Lithuania;756;1;Basic;Integration;Double Integration;Cartesian coordinates,x-simple region (type II),Changing order of integration 1146;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 37;Portugal;339;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation 1334;Portugal;290;0;Advanced;Linear Algebra;Linear Transformations;Linear application,Linearity 80;Lithuania;836;1;Basic;Differential Equations;Differential Equations;Linear differential equation 483;Portugal;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 955;Lithuania;1109;1;Basic;Numerical Methods;Numerical Methods;Polynomial interpolation,Lagrange's interpolation 1135;Portugal;382;0;Advanced;Linear Algebra;Linear Transformations;Injective linear application,Invertible linear operator,Isomorphism 751;Lithuania;261;0;Basic;Differentiation;Partial Differentiation;First order,Gradient 509;Portugal;136;1;Basic;Linear Algebra;Matrices and Determinants;Matrix rank,Matrix operations,Matrix multiplication,Symmetric matrix,Determinant computation,Commuting matrices,Determinant properties,Inverse matrix ,Solve matrix equation 988;Portugal;441;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span 1049;Lithuania;148;0;Basic;Differentiation;Partial Differentiation;First order 1219;Portugal;384;0;Basic;Linear Algebra;Linear Transformations;Linearity,Invertible linear operator,Composition of linear applications,Linear application 898;Portugal;324;1;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1256;Portugal;377;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 898;Portugal;440;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Subspace,Linear combination,Dimension 1341;Portugal;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 376;Portugal;1056;1;Advanced;Complex Numbers;Complex Numbers;Complex plane 956;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 91;Lithuania;416;1;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1095;Portugal;324;0;Basic;Linear Algebra;Linear Transformations;Linearity,Linear application 1256;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 966;Portugal;323;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1322;Italy;423;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1286;Italy;433;0;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1486;Portugal;611;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 966;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 199;Lithuania;108;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 165;Portugal;875;0;Basic;Differentiation;Partial Differentiation;Gradient,First order 1076;Portugal;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 626;Italy;753;1;Basic;Differentiation;Derivatives;Exponential rule 969;Romania;427;1;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1220;Slovenia;454;1;Basic;Linear Algebra;Vector Spaces;Basis 473;Portugal;291;0;Basic;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 91;Lithuania;436;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1220;Slovenia;317;1;Basic;Linear Algebra;Vector Spaces;Subspace,Span,Linear combination 168;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 840;Italy;778;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 1244;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 405;Portugal;120;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 697;Portugal;177;1;Basic;Statistics;Statistics;Sample,Population,Mean,Variance,Standard deviation,Median,Mode,Quantile 1274;Portugal;104;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1533;Portugal;563;0;Basic;Analytic Geometry;Analytic Geometry;Cartesian equations of a plane,Cartesian equations of a line 174;Portugal;501;0;Basic;Fundamental Mathematics;Elementary Geometry;Geometric solids 203;Lithuania;118;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1079;Portugal;426;1;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 525;Portugal;524;0;Basic;Fundamental Mathematics;Elementary Geometry;Quadrilaterals,Rhombus 411;Portugal;338;0;Basic;Complex Numbers;Complex Numbers;Operations with complex numbers,Modulus of a complex number,Algebraic form,Principal argument,De Moivre formulas,Polar representation,Trigonometric form 1256;Portugal;431;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1292;Italy;629;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvector,Spectrum,Characteristic polynomial,Eigenvalue 394;Portugal;449;1;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 1220;Slovenia;433;1;Basic;Linear Algebra;Vector Spaces;Subspace,Dimension 1220;Slovenia;436;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1564;Portugal;925;0;Basic;Real Functions of a single variable;Domain, Image and Graphics;Planar graph 81;Lithuania;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 1087;Portugal;428;0;Basic;Linear Algebra;Vector Spaces;Change-of-basis matrix,Span,Basis,Dimension 1179;Portugal;429;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 634;Italy;274;0;Basic;Differentiation;Derivatives;Product rule,Trigonometric rules 1081;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 1273;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 972;Portugal;780;0;Basic;Linear Algebra;Linear Transformations;Injective linear application,Range,Kernel,Isomorphism 1220;Slovenia;422;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1093;Portugal;432;0;Advanced;Linear Algebra;Vector Spaces;Linear independence,Subspace,Linear combination,Linear dependence,Span 876;Italy;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1220;Slovenia;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 406;Portugal;223;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 979;Portugal;1096;1;Basic;Numerical Methods;Numerical Methods;Newton’s method,Nonlinear equation 899;Lithuania;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;434;0;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1229;Portugal;289;1;Advanced;Linear Algebra;Linear Transformations;Kernel,Isomorphism,Injective linear application,Range 966;Portugal;313;0;Basic;Linear Algebra;Vector Spaces;Span,Linear combination,Subspace 72;Portugal;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 168;Portugal;777;0;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 448;Portugal;322;1;Advanced;Probability ;Probability ;Conditional probability,Bayes' Theorem 198;Italy;613;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 1163;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 451;Portugal;343;1;Advanced;Probability ;Probability ;Conditional probability,Bayes' Theorem 1091;Lithuania;296;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 394;Portugal;446;1;Advanced;Linear Algebra;Vector Spaces;Basis,Span,Change-of-basis matrix 414;Portugal;331;1;Basic;Complex Numbers;Complex Numbers;Conjugate number,Real part,De Moivre formulas,Operations with complex numbers,Imaginary part 1050;Lithuania;268;0;Basic;Differentiation;Partial Differentiation;First order,Second order 71;Portugal;271;1;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 1194;Portugal;325;1;Basic;Linear Algebra;Linear Transformations;Range,Kernel 1028;Lithuania;257;0;Basic;Differentiation;Partial Differentiation;Gradient,First order 1150;Portugal;421;0;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 598;Italy;222;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 1271;Portugal;779;0;Advanced;Linear Algebra;Linear Transformations;Rotation,Linear application 600;Italy;131;1;Basic;Linear Algebra;Matrices and Determinants;Determinant computation,Determinant properties,Inverse matrix ,Matrix operations 72;Portugal;566;0;Basic;Analytic Geometry;Analytic Geometry;Distance,Orthogonality,Locus 689;Portugal;867;0;Basic;Optimization;Nonlinear Optimization;Stationary point,Maximum,Saddle point,Second derivative test,Optimal solution,Minimum 1411;Portugal;777;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 81;Lithuania;381;0;Advanced;Linear Algebra;Linear Transformations;Range,Kernel 853;Italy;227;0;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1192;Portugal;454;1;Basic;Linear Algebra;Vector Spaces;Basis 1292;Italy;278;1;Advanced;Linear Algebra;Linear Transformations;Matrix of a linear transformation 510;Portugal;429;0;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 1076;Portugal;435;0;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 633;Italy;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1322;Italy;455;0;Basic;Linear Algebra;Vector Spaces;Basis 359;Portugal;506;0;Basic;Fundamental Mathematics;Elementary Geometry;Symmetry 552;Portugal;574;0;Advanced;Analytic Geometry;Analytic Geometry;Collinearity,Orthogonality,Distance,Scalar product 511;Portugal;227;1;Basic;Linear Algebra;Linear Systems;Square linear system,Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 983;Portugal;342;1;Basic;Complex Numbers;Complex Numbers;Trigonometric form,Modulus of a complex number,Algebraic form 457;Portugal;421;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1081;Portugal;439;1;Advanced;Linear Algebra;Vector Spaces;Span,Subspace,Linear combination 918;Portugal;397;0;Basic;Integration;Integration Techniques;Substitution 955;Lithuania;383;0;Basic;Linear Algebra;Linear Transformations;Linearity,Matrix of a linear transformation,Linear application 1171;Portugal;155;0;Basic;Optimization;Nonlinear Optimization;Lagrange multipliers,Maximum,Minimum 375;Portugal;435;1;Basic;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis,Basis 80;Lithuania;328;0;Basic;Complex Numbers;Complex Numbers;Real part,Operations with complex numbers,Imaginary part,Modulus of a complex number,Conjugate number 852;Italy;223;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 155;Spain;153;1;Basic;Differentiation;Partial Differentiation;Stationary point,Minimum,Optimal solution,Lagrange multipliers 1289;Italy;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1046;Lithuania;883;0;Basic;Differentiation;Partial Differentiation;First order,Directional derivative 1220;Slovenia;377;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel,Matrix of a linear transformation 840;Italy;454;0;Basic;Linear Algebra;Vector Spaces;Basis 37;Portugal;1071;1;Basic;Differentiation;Partial Differentiation;First order 1023;Lithuania;422;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Span 1220;Slovenia;415;1;Basic;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 913;Ireland;449;1;Advanced;Linear Algebra;Vector Spaces;Euclidean spaces,Orthogonal basis 37;Portugal;851;0;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 509;Portugal;376;1;Basic;Linear Algebra;Linear Transformations;Matrix of a linear transformation 634;Italy;325;0;Basic;Linear Algebra;Linear Transformations;Range,Kernel 349;Portugal;142;0;Basic;Differentiation;Derivatives;Trigonometric rules,Product rule 741;Ireland;181;0;Basic;Statistics;Statistics;Quantile,Frequency,Sample,Mean,Variance,Standard deviation,Median,Mode 509;Portugal;602;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Eigenvalue,Eigenvector,Spectrum,Characteristic polynomial 840;Italy;431;1;Basic;Linear Algebra;Vector Spaces;Subspace,Linear combination,Span 853;Italy;228;1;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system 1286;Italy;424;1;Advanced;Linear Algebra;Vector Spaces;Linear independence,Span,Linear dependence 1220;Slovenia;459;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 411;Portugal;401;0;Basic;Integration;Integration Techniques;Direct inspection,Simple integration 468;Portugal;356;0;Advanced;Complex Numbers;Complex Numbers;Operations with complex numbers 967;Portugal;427;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1158;Portugal;425;0;Basic;Linear Algebra;Vector Spaces;Subspace,Change-of-basis matrix,Linear combination,Span,Basis 383;Portugal;352;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 151;Portugal;102;1;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 168;Portugal;417;0;Basic;Linear Algebra;Vector Spaces;Basis,Dimension 1220;Slovenia;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 448;Portugal;304;1;Basic;Probability ;Probability ;Addition, multiplication, and total probability rules,Sample space,Event,Axioms of probability 175;Italy;1088;1;Basic;Numerical Methods;Numerical Methods;First order,Second order 1220;Slovenia;457;0;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1292;Italy;853;1;Basic;Linear Algebra;Eigenvalues and Eigenvectors;Continuity,Limits 414;Portugal;220;0;Basic;Linear Algebra;Linear Systems;Inconsistent system,Solution of linear system,Undetermined solution of linear system,Consistent system,Square linear system 913;Ireland;294;0;Basic;Probability ;Probability ;Event,Axioms of probability,Sample space 1517;Portugal;419;0;Advanced;Linear Algebra;Vector Spaces;Subspace,Dimension 426;Portugal;352;1;Advanced;Complex Numbers;Complex Numbers;Conjugate number,Operations with complex numbers 840;Italy;457;1;Basic;Linear Algebra;Vector Spaces;Linear combination,Subspace,Span 1087;Portugal;277;0;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 1273;Portugal;434;1;Basic;Linear Algebra;Vector Spaces;Subspace,Basis,Dimension 1158;Portugal;785;1;Basic;Linear Algebra;Linear Transformations;Linear application,Linearity 510;Portugal;666;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions 359;Portugal;668;0;Basic;Fundamental Mathematics;Algebraic expressions, Equations, and Inequalities;Simplify expressions