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Homework Help
Posted by Cathy on Sunday, June 23, 2013 at 6:19am.
You are given vectors A = 5.0i - 6.5j & B = -3.5i + 7.0j. A third vector C lies on the xy-plane. Vector C is perpendicular to vector A, & the scalar product of C with B is 15.0. From this
information, find the components of vector C.
• Physics - MathMa... | {"url":"http://www.jiskha.com/display.cgi?id=1371982769","timestamp":"2014-04-19T22:48:04Z","content_type":null,"content_length":"9074","record_id":"<urn:uuid:bee057d8-f422-4d2d-aa43-ab124794352f>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00635-ip-10-147-4-33.ec2.internal.warc.gz... |
12.2 Lyapunov Equations
The function LyapunovSolve attempts to find the solution Lyapunov equation
a special class of linear matrix equations that occurs in many branches of control theory, such as stability analysis, optimal control, and response of a linear system to white noise (see, e.g.,
Brogan (1991)). Typically,... | {"url":"http://reference.wolfram.com/legacy/applications/control/FunctionIndex/DirectSolve.html","timestamp":"2014-04-18T20:56:38Z","content_type":null,"content_length":"38073","record_id":"<urn:uuid:2177df39-872c-400f-80f9-a93696c4477b>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-0... |
the first resource for mathematics
An SQP algorithm for extended linear-quadratic problems in stochastic programming.
(English) Zbl 0835.90058
Summary: Extended Linear-Quadratic Programming (ELQP) problems were introduced by Rockafellar and Wets for various models in stochastic programming and multistage optimization. ... | {"url":"http://zbmath.org/?q=an:0835.90058","timestamp":"2014-04-20T01:03:22Z","content_type":null,"content_length":"28159","record_id":"<urn:uuid:663450c0-d53e-48f7-9181-5bf8908de916>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00546-ip-10-147-4-33.ec2.internal.warc.gz"} |
Re: [Bug-gnubg] (OT) Position ID documentation
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Re: [Bug-gnubg] (OT) Position ID documentation
From: Massimiliano Maini
Subject: Re: [B... | {"url":"http://lists.gnu.org/archive/html/bug-gnubg/2010-05/msg00033.html","timestamp":"2014-04-20T17:00:34Z","content_type":null,"content_length":"10009","record_id":"<urn:uuid:9453b765-90a1-41da-8cb8-23fb1ce1edea>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00009-ip-10-147-4-33.e... |
Homework Problem
October 12th 2008, 03:16 PM
Homework Problem
1.How would you differentiate (6^x)log_4 (x)? Note that the underscore here indicates subscript here.
2. Solve for f'(x) given that :
Please help! I have homework due!
Thanks a lot.
October 12th 2008, 03:36 PM
Chris L T521
You will need t... | {"url":"http://mathhelpforum.com/calculus/53311-homework-problem-print.html","timestamp":"2014-04-19T04:40:15Z","content_type":null,"content_length":"5194","record_id":"<urn:uuid:bc36cb3f-00e8-4d54-a8b5-375a79885048>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00047-ip-10-147-4-33.... |
Growing a hyperdodecahedron
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Growing a hyperdodecahedron
August 2, 2011 10:44 AM Subscribe
This short computer graphics animation presents the regular 120-cell: a four dimensional polytope composed of 120 dodecahedra and also known as the hyperdodecahedron or hecatonicosachoron.
Gian Marco Tedesco'... | {"url":"http://www.metafilter.com/106119/Growing-a-hyperdodecahedron","timestamp":"2014-04-16T11:21:42Z","content_type":null,"content_length":"37938","record_id":"<urn:uuid:d47e2426-17ee-4d1b-8045-3691af34a6a8>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00216-ip-10-147-4-33.ec2.in... |
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Here's the question you clicked on:
When he goes out to eat, Austin always leaves a tip for his se... | {"url":"http://openstudy.com/updates/50326567e4b0aa95e34ceba0","timestamp":"2014-04-17T06:55:04Z","content_type":null,"content_length":"32587","record_id":"<urn:uuid:f5b49844-5205-4862-9fff-9b49fad9bde8>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00215-ip-10-147-4-33.ec2.internal.w... |
the encyclopedic entry of partial differential equation
partial differential equations
) are a type of
differential equation
, i.e., a
involving an unknown
(or functions) of several
independent variables
and its (resp. their)
partial derivatives
with respect to those variables. Partial differential equations are used t... | {"url":"http://www.reference.com/browse/partial+differential+equation","timestamp":"2014-04-21T10:18:26Z","content_type":null,"content_length":"122724","record_id":"<urn:uuid:cd22704f-56f0-4ff3-84f2-9c1ddb937cf2>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00150-ip-10-147-4-33.ec2.... |
Summary: VERY BRIEF INTRODUCTION TO
P.M.E.Altham, Statistical Laboratory, University of Cambridge.
February 28, 2005
FIRST CLASS IS MONDAY JAN 24, 2005. YOU NEED TO SIGN UP FOR
ONE OF THE SLOTS 10-11 am, 11-12 noon, 12 noon- 1pm.
Catam users: To start R:
Open a Command Prompt window from the start button
You should now... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/478/3800945.html","timestamp":"2014-04-20T22:04:46Z","content_type":null,"content_length":"7918","record_id":"<urn:uuid:8e133873-77f3-479e-af0c-5f1fecbc7a9e>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00181-ip-10-147-4... |
Find the range value
March 27th 2013, 06:05 AM #1
Junior Member
Aug 2012
The Earth
Find the range value
Find the set of value of k, where k is a constant, when equation x^3 -12x^2 +45x -34 = k has (a)one root and (b)three roots.
How should I get start with the problem like this?
Re: Find the range value... | {"url":"http://mathhelpforum.com/algebra/215759-find-range-value.html","timestamp":"2014-04-18T03:55:04Z","content_type":null,"content_length":"33399","record_id":"<urn:uuid:f4559fab-e707-45f6-83af-da9055b072e9>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00464-ip-10-147-4-33.ec2.i... |
[FOM] More than a Typo in Friedman's Concept Calculus Paper
Frode Bjørdal frode.bjordal at ifikk.uio.no
Fri Aug 16 15:38:48 EDT 2013
Friedman's typographical adjustment does not rectify the Concept Calculus.
1: The definition Friedman now suggests, y>exPhi iff Forallz(y>z iff
Existsx(Phi and (x=z or z>x))), is not mate... | {"url":"http://www.cs.nyu.edu/pipermail/fom/2013-August/017486.html","timestamp":"2014-04-19T17:05:21Z","content_type":null,"content_length":"7520","record_id":"<urn:uuid:c34dcd54-dc9b-4c2b-be5c-8c5dce6880ac>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00220-ip-10-147-4-33.ec2.inter... |
split idempotent
split idempotent
Category theory
Universal constructions
A split idempotent in a category $C$ is a morphism $e: A \to A$ which has a retract, meaning an object $B$ and morphisms $r: A \to B$ and $s: B \to A$ such that $s \circ r = e$ but $r \circ s = 1_B$.
• Any split idempotent is an idempotent, sin... | {"url":"http://www.ncatlab.org/nlab/show/split+idempotent","timestamp":"2014-04-17T21:27:31Z","content_type":null,"content_length":"23159","record_id":"<urn:uuid:8bccb3ed-16f3-4421-ad2f-8624aff6050a>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00088-ip-10-147-4-33.ec2.internal.warc... |
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If you had an army of your clones on each others heads, about ... | {"url":"http://openstudy.com/updates/504fa8f5e4b03b79a332e3a2","timestamp":"2014-04-20T03:27:17Z","content_type":null,"content_length":"30455","record_id":"<urn:uuid:ae7bd10e-98e3-4332-b219-5ab69c88b592>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00036-ip-10-147-4-33.ec2.internal.... |
How to "globalize" the inverse function theorem?
up vote 6 down vote favorite
Let $F: V \times W\rightarrow Z$, where $V,W,Z$ are finite-dimensional smooth (or analytic) manifolds and $F$ is smooth (or analytic). Assume that $\dim W=\dim Z$ and the usual inverse function
theorem applies when we fix the first argument o... | {"url":"http://mathoverflow.net/questions/47612/how-to-globalize-the-inverse-function-theorem","timestamp":"2014-04-16T19:44:22Z","content_type":null,"content_length":"59886","record_id":"<urn:uuid:697cd27a-f2ec-45ef-a4a1-5f0b048b37ac>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00... |
Nonlinear Mixed-Effects Modeling of Population Pharmacokinetics Data
Data sets involving nonlinear, sparse grouped data are common in the health sciences, especially in drug trials, where they are used to measure drug absorption, distribution, metabolism, and
elimination. In this approach, patients are grouped using ch... | {"url":"http://www.mathworks.nl/company/newsletters/articles/nonlinear-mixed-effects-modeling-of-population-pharmacokinetics-data.html?nocookie=true","timestamp":"2014-04-23T09:41:04Z","content_type":null,"content_length":"31943","record_id":"<urn:uuid:07eddd79-65fe-4946-a79e-fdc00672d140>","cc-path":"CC-MAIN-2014-15/s... |
does there exist a family of objects over the tangent space to the base space of a family of objects?
up vote 2 down vote favorite
Suppose we have a family of objects $\Xi \to S$ over a base smooth projective scheme $S$. Take a closed point $p\in S$ and consider the tangent space to $S$ at $p$. Can one construct an "in... | {"url":"https://mathoverflow.net/questions/120976/does-there-exist-a-family-of-objects-over-the-tangent-space-to-the-base-space-of","timestamp":"2014-04-17T04:16:36Z","content_type":null,"content_length":"58727","record_id":"<urn:uuid:ec21141c-5046-448b-b6c9-3f354a19b809>","cc-path":"CC-MAIN-2014-15/segments/1397609526... |
Briggs on Logarithms
Date: 08/28/2001 at 06:29:52
From: Khalid Mahmood
Subject: Logarithms
Dr. Math!
I want to know how Briggs constructed logarithmic tables of common
logarithms. The Encyclopedia Britannica says:
"To construct this table Briggs, using about thirty places of
decimals, extracted the square root of 10 fi... | {"url":"http://mathforum.org/library/drmath/view/55600.html","timestamp":"2014-04-16T11:02:12Z","content_type":null,"content_length":"9267","record_id":"<urn:uuid:534fce75-2312-498b-b7b8-78bced2d5d92>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00457-ip-10-147-4-33.ec2.internal.war... |
What is THE ANSWER CALLED WHEN YOU SUBTRACT ONE NUMBER FROM ANOTHER?
Mr What? is the first search engine of definitions and meanings, All you have to do is type whatever you want to know in the search box and click WHAT IS!
All the definitions and meanings found are from third-party authors, please respect their copyri... | {"url":"http://mrwhatis.net/the-answer-called-when-you-subtract-one-number-from-another.html","timestamp":"2014-04-20T13:21:03Z","content_type":null,"content_length":"40322","record_id":"<urn:uuid:106eb9f2-edcf-48ea-8b5c-c52aecd13a61>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-000... |
Gravitation: Orbits
Problem : What is the escape velocity from the earth? ( M [e] = 5.98×10^24 kilograms, r [e] = 6.38×10^6 meters)
The escape velocity is given by:
Thus the escape velocity from the earth is roughly 11.2 kilometers per second.
Problem : If a black hole contains a singularity (all the mass is concentrat... | {"url":"http://www.sparknotes.com/physics/gravitation/orbits/problems_1.html","timestamp":"2014-04-17T09:57:35Z","content_type":null,"content_length":"57193","record_id":"<urn:uuid:d89defe6-8872-4656-a7dc-8333bbc23403>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00290-ip-10-147-4-3... |
Perpendicular Bisector and Circumference help
October 22nd 2012, 04:00 PM #1
Oct 2012
Perpendicular Bisector and Circumference help
1)Show that ABC is a right-angled triangle.
2)The line y= 2x -6 is the equation of the perpendicular bisector of AC. Find the equations of the other two perpendicular bisectors... | {"url":"http://mathhelpforum.com/geometry/205900-perpendicular-bisector-circumference-help.html","timestamp":"2014-04-17T07:48:03Z","content_type":null,"content_length":"35100","record_id":"<urn:uuid:3a8c7bac-c930-4517-ac07-023e7cabaf71>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-... |
What was the reason spacetime expanded in the first place?
2012-Apr-18, 05:58 PM #1
Join Date
Apr 2012
What was the reason spacetime expanded in the first place?
In an approach recently conjectured by Fotini Markopoulou, geometrogenesis explains that geometry appeared late in the universe when it became suffici... | {"url":"http://cosmoquest.org/forum/showthread.php?131070-What-was-the-reason-spacetime-expanded-in-the-first-place&p=2011238","timestamp":"2014-04-17T03:55:14Z","content_type":null,"content_length":"159963","record_id":"<urn:uuid:96ded35b-a2e5-4b99-bed9-c4063674c8d0>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.... |
Fourth Dimension
Date: 05/13/97 at 19:19:15
From: alexszeto1
Subject: hi
Hi Dr.Math,
I'm a freshman in high school and I'm doing a research paper on the
fourth dimension. Will you please help me try to understand what the
fourth dimension is? If you could, can you also include any
information you know about the fourth ... | {"url":"http://mathforum.org/library/drmath/view/54683.html","timestamp":"2014-04-19T23:02:27Z","content_type":null,"content_length":"18426","record_id":"<urn:uuid:c469db39-cb24-491d-a826-66ee0fe24386>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00125-ip-10-147-4-33.ec2.internal.wa... |
7 common errors
Some common errors arise again and again in statistics.
Here are seven to watch out for:
unclear basepoint for graphs
A TV advert used to proudly proclaim:
"X has 25% more active ingredient"
The screen however showed just the top of four test tubes. The words may have been true, but it l... | {"url":"http://www.meandeviation.com/tutorials/stats/notes/7errors.html","timestamp":"2014-04-21T07:03:43Z","content_type":null,"content_length":"14113","record_id":"<urn:uuid:9bc81b6c-0b46-46f7-b1c8-6fe2d560ca25>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00095-ip-10-147-4-33.ec2... |
Is it possible to extend this inequality about Euclidean distance &Frobenius norm to more general Bregman divergence such as relative entropy & von Neumann divergence?
up vote 4 down vote favorite
Motivation- A Special Case
Supposing $A,B\in\mathbb{S}^{m\times m}$ are symmetric positive semi-definite (SPD) matrices and... | {"url":"http://mathoverflow.net/questions/93149/is-it-possible-to-extend-this-inequality-about-euclidean-distance-frobenius-nor?answertab=votes","timestamp":"2014-04-17T07:24:11Z","content_type":null,"content_length":"60503","record_id":"<urn:uuid:bf90e2ce-5ab8-4285-bed6-397f98eea2e1>","cc-path":"CC-MAIN-2014-15/segmen... |
Department of Physics at the University of Florida
Office: 2079 NPB
Bernard Whiting
PhD Melbourne University (1979)
Research Group
Theoretical Physics
Research Interests
Research interests: both theoretical end experimental approaches to the detection and understanding of gravitational waves, as predicted in General Re... | {"url":"http://www.phys.ufl.edu/faculty/whiting.shtml","timestamp":"2014-04-20T15:50:29Z","content_type":null,"content_length":"15544","record_id":"<urn:uuid:72eb53b4-644b-44dc-b681-14db7b1becfa>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00515-ip-10-147-4-33.ec2.internal.warc.gz"... |
Results 1 - 10 of 25
, 1998
"... SeDuMi is an add-on for MATLAB, that lets you solve optimization problems with linear, quadratic and semidefiniteness constraints. It is possible to have complex valued data and variables in
SeDuMi. Moreover, large scale optimization problems are solved efficiently, by exploiting sparsi... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=215601","timestamp":"2014-04-16T05:46:28Z","content_type":null,"content_length":"38816","record_id":"<urn:uuid:bfb7346f-e6f3-45a6-93da-4ad86b2016fa>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00528-ip-10-147-4-33.ec2.internal.war... |
Number of vectors in a vector of vectors
I have a 2d vector that is not necessarily square. I want to know how many rows and columns it has (obviously, it isn't really 2d, but I'm thinking of it as an array).
The number of elements of each vector within this vector can be found with vec[i].size(), but what about the nu... | {"url":"http://www.cplusplus.com/forum/beginner/82434/","timestamp":"2014-04-20T21:07:43Z","content_type":null,"content_length":"9658","record_id":"<urn:uuid:fd7a1bb4-26b5-490d-9c43-125f36ca26a8>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00246-ip-10-147-4-33.ec2.internal.warc.gz"... |
SAT Skills Insight
Select a score band
Algebra and Functions
Skills needed to score in this band
SKILL 1: Solve problems involving complex fractions
SKILL 2: Solve problems involving functions defined with unfamiliar symbols in one or more variables
SKILL 3: Identify, apply, and represent transformations of functions, ... | {"url":"http://sat.collegeboard.org/practice/sat-skills-insight/math/band/700/skill/2","timestamp":"2014-04-20T16:29:45Z","content_type":null,"content_length":"89275","record_id":"<urn:uuid:2e65d044-801b-4b72-a6b4-d90dc9a58587>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00161-ip-1... |
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Here's the question you clicked on:
Determine whether each sequence is geometric. If so, find the ... | {"url":"http://openstudy.com/updates/4f5e8748e4b0602be4391922","timestamp":"2014-04-20T14:08:12Z","content_type":null,"content_length":"27759","record_id":"<urn:uuid:36656005-edf4-45c4-af89-a24f9aa7e89a>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00164-ip-10-147-4-33.ec2.internal.w... |
Application: Diffie-Hellman key exchange
Application: Diffie-Hellman key exchange
How do two people, Amelia and Ben, share a secret over an open channel of communications? It may seem incredible at first, but it is possible and is the remarkable discovery of Whitfield Diffie, now
at Sun Microsystems, and Martin Hellman... | {"url":"http://www.permutationpuzzles.org/AAAbook/node47.html","timestamp":"2014-04-16T16:14:14Z","content_type":null,"content_length":"5496","record_id":"<urn:uuid:75758974-5140-4cc1-9607-daee2f9afd95>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00293-ip-10-147-4-33.ec2.internal.w... |
Foil Wrapped Around a Spindle
Date: 12/17/97 at 17:18:00
From: Liz Brown
Subject: Integration?
I have a problem in an engineering work environment. I have a tightly
rolled sheet of foil wrapped around a spindle. I know the diameter of
the spindle (Do) and the external diameter of the combined spindle and
surrounding fo... | {"url":"http://mathforum.org/library/drmath/view/56474.html","timestamp":"2014-04-21T10:58:18Z","content_type":null,"content_length":"9443","record_id":"<urn:uuid:9df9550f-36ea-48b6-a607-349131212665>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00175-ip-10-147-4-33.ec2.internal.war... |
Advanced High School Mathematics
Integers and polynomials form number systems which have the following things in common:
• The two number systems closed under addition, subtraction and multiplication.
• Objects in the respective number systems can be factored into “primes.” You’re familiar with what an prime intege... | {"url":"http://eulerianmath.wordpress.com/","timestamp":"2014-04-21T12:08:01Z","content_type":null,"content_length":"50512","record_id":"<urn:uuid:e5919f54-2477-4625-aea5-6024cf1d9986>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00339-ip-10-147-4-33.ec2.internal.warc.gz"} |
the encyclopedic entry of statistically independent
Independent component analysis
) is a computational method for separating a
signal into additive subcomponents supposing the mutual
statistical independence
of the non-Gaussian source signals. It is a special case of
blind source separation
When the independence assum... | {"url":"http://www.reference.com/browse/statistically+independent","timestamp":"2014-04-20T22:24:51Z","content_type":null,"content_length":"90193","record_id":"<urn:uuid:c1211d38-6aac-4a4b-bf4f-ccbc83208ec6>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00107-ip-10-147-4-33.ec2.inter... |
January 29th 2008, 01:47 AM #1
Junior Member
Oct 2007
The following table shows the number of items of certain product imported into the United Kingdom is given below in thousands of units for the Years
Years 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964
Consumption 170 210 188 98 83 131 205 182 90 ... | {"url":"http://mathhelpforum.com/business-math/27040-calculations.html","timestamp":"2014-04-19T17:45:42Z","content_type":null,"content_length":"42736","record_id":"<urn:uuid:4165e52d-a498-4294-9b05-f8e52a9c26fd>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00306-ip-10-147-4-33.ec2.... |
Ridgewood, NJ Precalculus Tutor
Find a Ridgewood, NJ Precalculus Tutor
...Some of my recent successful students are graduating imminently from the prestigious engineering MBA offered at Wharton University of Penn. Hello,I've been tutoring all aspects of the ASVAB for
over 2 years. I have found my knowledge of advan... | {"url":"http://www.purplemath.com/Ridgewood_NJ_Precalculus_tutors.php","timestamp":"2014-04-20T07:02:44Z","content_type":null,"content_length":"24467","record_id":"<urn:uuid:7ba3642b-06ea-490e-b8c7-9c38a8e301e7>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00165-ip-10-147-4-33.ec2.i... |
Borel-Bott-Weil theorem
Borel-Bott-Weil theorem
Let $G$ be a semisimple Lie group, and $\lambda$ be an integral weight for that group. $\lambda$ naturally defines a one-dimensional representation $C_{\lambda}$ of the Borel subgroup $B$ of $G$, by
simply pulling back the representation on the maximal torus $T=B/U$ where... | {"url":"http://planetmath.org/borelbottweiltheorem","timestamp":"2014-04-21T09:41:36Z","content_type":null,"content_length":"104372","record_id":"<urn:uuid:115e41f3-5acf-4972-9f89-114a52881755>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00450-ip-10-147-4-33.ec2.internal.warc.gz"} |
2nd order of differential equation.
March 13th 2011, 11:25 AM
2nd order of differential equation.
y'' -3y + 2y = e^2ix
Will this imaginary constant make some trouble for me?
I have tried this
Y = Ae2ix
and the derivative of that
Y' = 2Ae^2ix
Y''= 4Ae^2ix
I cant figure out how to get the ... | {"url":"http://mathhelpforum.com/differential-equations/174458-2nd-order-differential-equation-print.html","timestamp":"2014-04-18T06:18:46Z","content_type":null,"content_length":"4744","record_id":"<urn:uuid:07082e09-bd12-4983-9451-94f488b257d3>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-201404... |
ternary relation
ternary relation
A ternary relation (or triadic relation) is a relation in three variables (instead of the more common two of a binary relation).
The elementary theory of categories (in the strict sense) may be defined with a single ternary relation (and several axioms) in untyped predicate logic with ... | {"url":"http://www.ncatlab.org/nlab/show/ternary+relation","timestamp":"2014-04-17T15:31:14Z","content_type":null,"content_length":"13026","record_id":"<urn:uuid:67aeb44d-f925-4e37-88dd-f754473458a6>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00154-ip-10-147-4-33.ec2.internal.warc.... |
proving geometric theorems by vector method
I am learning vectors in which there is a section in which geometric theorems are proved with the help of vectors. However while solving problems I often face difficulty on how to proceed ,where to
use dot product, cross and etc.Is there any systematic manner on how to prove ... | {"url":"http://www.physicsforums.com/showthread.php?p=1055048","timestamp":"2014-04-20T08:48:23Z","content_type":null,"content_length":"22432","record_id":"<urn:uuid:bb8f1dc9-cef2-4feb-a1b9-196d733bc660>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00109-ip-10-147-4-33.ec2.internal.w... |
Mplus Discussion >> Growth mixture modeling and distal outcomes
Anonymous posted on Friday, July 01, 2005 - 9:59 am
I am running a growth mixture model and wanted to assess some distal outcomes, I put them in the usevar list like an example in the manual and got an estimate of the means in each class; however, I
would ... | {"url":"http://www.statmodel.com/discussion/messages/13/726.html?1365695908","timestamp":"2014-04-17T16:37:18Z","content_type":null,"content_length":"86417","record_id":"<urn:uuid:35dc1085-695e-4659-acac-4900ee3ff09d>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00471-ip-10-147-4-33.... |
Suppose the probability that a U S resident has traveled to Canada is 0.18 to Mexico is 0.09 and to both countries is... - Homework Help - eNotes.com
Suppose the probability that a U S resident has traveled to Canada is 0.18 to Mexico is 0.09 and to both countries is 0.04. What is the probability that an American chos... | {"url":"http://www.enotes.com/homework-help/suppose-probability-that-u-s-resident-has-traveled-441482","timestamp":"2014-04-17T19:55:45Z","content_type":null,"content_length":"25534","record_id":"<urn:uuid:94e18a8c-f540-4869-9cdf-2ae847aa10c3>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-201404160... |
Adaptive surface data compression
Adaptive surface data compression
Surgical Planning Laboratory, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA; Telecommunications Institute, University of
Erlangen-Nuremberg, Cauerstraβe 7, 91058 Erlangen, German... | {"url":"http://www.researchgate.net/publication/223837023_Adaptive_surface_data_compression","timestamp":"2014-04-19T20:17:16Z","content_type":null,"content_length":"220227","record_id":"<urn:uuid:47ae54b9-72b7-490b-b9ac-6f359ed19c01>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-004... |
Dirac delta function
Dirac delta function
The Dirac delta “function” $\delta(x)$, or distribution is not a true function because it is not uniquely defined for all values of the argument $x$. Similar to the Kronecker delta symbol, the
notation $\delta(x)$ stands for
$\delta(x)=0\;\text{for}\;xeq 0,\;\text{and}\;\int_{... | {"url":"http://planetmath.org/DiracDeltaFunction","timestamp":"2014-04-17T12:41:08Z","content_type":null,"content_length":"51288","record_id":"<urn:uuid:bfd096a6-760e-4519-9d06-601e02d8ccb4>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00169-ip-10-147-4-33.ec2.internal.warc.gz"} |
Yeadon, PA Math Tutor
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expertise allows me to quickly identify students' problem areas and most eff... | {"url":"http://www.purplemath.com/yeadon_pa_math_tutors.php","timestamp":"2014-04-16T21:59:36Z","content_type":null,"content_length":"23928","record_id":"<urn:uuid:70bb2444-5431-4f63-82d7-46f7e30f6a3c>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00025-ip-10-147-4-33.ec2.internal.war... |
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5. A student mistakenly measures the length of a radius to be ... | {"url":"http://openstudy.com/updates/51c9d448e4b011c79f623e2f","timestamp":"2014-04-17T21:35:05Z","content_type":null,"content_length":"35043","record_id":"<urn:uuid:4e3efe26-14a2-4379-9570-4ac1cbfc3ae0>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00657-ip-10-147-4-33.ec2.internal.... |
A)In The Figure, A Frictionless Roller Coaster ... | Chegg.com
A)In the figure, a frictionless roller coaster of mass 1000 kg tops the first hill at height, h = 36 m with speed 8.65 m/s. How much work does its weight do on it from that point to point A?
B)How much work does its weight do on it from that point to point ... | {"url":"http://www.chegg.com/homework-help/questions-and-answers/figure-frictionless-roller-coaster-mass-1000-kg-tops-first-hill-height-h-36-m-speed-865-m--q1750159","timestamp":"2014-04-20T19:29:39Z","content_type":null,"content_length":"21677","record_id":"<urn:uuid:0aec05ac-79f3-4f49-b6f9-54046c36a5b7>","cc-path":"C... |
diagram 2
The dependent variable of the regression equation, the Market variable for Bank Holding Company (BHC), i, during time, t, equals the summation of the following items:
• Alpha;
• Beta-one times BOPEC Change for BHC, i, during time, t minus one;
• Beta-two times Firm Size for BHC, i, during time, t minus ... | {"url":"http://www.fdic.gov/bank/analytical/working/wp2003_04/diagram2.html","timestamp":"2014-04-17T07:08:03Z","content_type":null,"content_length":"1236","record_id":"<urn:uuid:55adabb4-ebd3-47b4-b372-919c29db99e2>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00619-ip-10-147-4-33.... |
Queens, NY Science Tutor
Find a Queens, NY Science Tutor
...Let me help you wrap your mind around it!I have BA with Departmental Honors in Physics from Vassar College. During two years of college I worked for the physics department in a position
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multicomp.reverse {HH}
Force all comparisons in a "multicomp" object to have the same sign.
Force all comparisons in a "multicomp" object to have the same sign. If the contrast "A-B" has a negative estimate, reverse it show the contrast "B-A" with a positive estimate.
multicomp.reverse(y, estimate.sign = 1, ...)
"m... | {"url":"http://www.inside-r.org/packages/cran/HH/docs/multicomp.reverse","timestamp":"2014-04-19T05:25:09Z","content_type":null,"content_length":"14986","record_id":"<urn:uuid:ea25f61f-55f3-4f12-9009-d72c7efe0af5>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00134-ip-10-147-4-33.ec2... |
Applied and Computational Mathematics Division
We provide leadership within NIST in the application of applied and computational mathematics to the solution to science and engineering problems arising in measurement science and related
applications. This is accomplished via a program of R&D in mathematical and computat... | {"url":"http://nist.gov/itl/math/index.cfm","timestamp":"2014-04-19T04:52:37Z","content_type":null,"content_length":"27017","record_id":"<urn:uuid:b8f2a8a8-eff6-43d8-bbc0-fc118ef3d983>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00567-ip-10-147-4-33.ec2.internal.warc.gz"} |
How to Draw Complex Line Bundles
up vote 18 down vote favorite
I am giving a presentation soon on the Classification of Complex Line Bundles and I would like to have some very "basic" visualizations to use as examples.
Background and Context
I am considering the Cech-cohomology of a principal $ \mathbb{C}^{*} $ bundle,... | {"url":"http://mathoverflow.net/questions/100531/how-to-draw-complex-line-bundles","timestamp":"2014-04-18T18:16:25Z","content_type":null,"content_length":"67027","record_id":"<urn:uuid:cc5f8e0f-951c-4821-96bf-e8ddd3a4e2ca>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00199-ip-10-147... |
Graphs of Two Variable Functions
Many types of economic problems require that we consider two variables at the same time. A typical example is the relation between price of a commodity and the demand or supply of that commodity. The
relation can be described algebraically by a two variable function or equation. But it ... | {"url":"http://www.columbia.edu/itc/sipa/math/graphs.html","timestamp":"2014-04-19T08:03:26Z","content_type":null,"content_length":"4128","record_id":"<urn:uuid:d6afcf82-52ad-4295-9fba-067b2b1cfa63>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00449-ip-10-147-4-33.ec2.internal.warc.g... |
Posts about undefined terms on educationrealist
Geometry: Starting Off
By educationrealist
The first day or two of geometry is always point line plane. We never really use it again. Geometry has mostly been subordinated to algebra in high school, as I’ve written before, and my geometry
class is best thought of as algeb... | {"url":"http://educationrealist.wordpress.com/tag/undefined-terms/","timestamp":"2014-04-17T16:04:22Z","content_type":null,"content_length":"38856","record_id":"<urn:uuid:676ac375-5838-4d81-a90e-9f3cac0d67ca>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00342-ip-10-147-4-33.ec2.inter... |
A self-duality of strong starlikeness
In this note, we will show that a simply connected bounded domain $D$ is strongly starlike of order $\alpha<1$ if and only if so is $D^\vee,$ where $D^v$ is the analytic inversion of the exterior of
$D,$ namely, $D^v=\{w\in\mathbb{C}:\, 1/w\in\widehat{\mathbb{C}} \setminus\bar D\}.... | {"url":"http://www.cajpn.org/pp00/0003.html","timestamp":"2014-04-18T03:11:18Z","content_type":null,"content_length":"1424","record_id":"<urn:uuid:8c4f1fbd-7ca2-4d32-94f2-b098a2d36ff7>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00590-ip-10-147-4-33.ec2.internal.warc.gz"} |
Willow Springs, IL
Chicago, IL 60618
...I have scored above the 90th percentile on the ACT, SAT, and GRE, so I do know the material thoroughly myself, but the method of taking the test can make all the difference for a student looking
for a few more points. I also tutored
at that location, working...
Offering 10+ subje... | {"url":"http://www.wyzant.com/geo_Willow_Springs_IL_Math_tutors.aspx?d=20&pagesize=5&pagenum=5","timestamp":"2014-04-16T20:31:55Z","content_type":null,"content_length":"59159","record_id":"<urn:uuid:aa3e5af5-cc79-45bf-a9e6-fec1a9e995e4>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-0... |
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Galton & simulation
September 27, 2010
By xi'an
Stephen Stigler has written a paper in the Journal of the Royal Statistical Society Series A on Francis Galton’s analysis of (his cousin) Charles Darwin’ Origin of Species, leading to nothing less
than Bayesian analysis and accept-reject algorithms!
“On September 10th... | {"url":"http://www.r-bloggers.com/galton-simulation/","timestamp":"2014-04-16T10:30:37Z","content_type":null,"content_length":"45341","record_id":"<urn:uuid:849caf03-9753-4045-b265-3092feb05b29>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00028-ip-10-147-4-33.ec2.internal.warc.gz"} |
NBOS Online Exchange
Re: [nbos] [AS] Travel Times"Walter M. Scott III" Sat Aug 29th, 2009
>...I am trying to figure out some travel times at slower than light.
>...Anyone know of any easy way to compute these times?
>...For example, a sleeper ship that is going from earth to 61 Cygni.
Assuming acceleration of 3/4 Gs, I... | {"url":"http://www.nbos.com/nox/index.php?action=5000&msgid=2174","timestamp":"2014-04-17T12:29:42Z","content_type":null,"content_length":"3981","record_id":"<urn:uuid:57a0e9e7-973f-4312-825e-00894431ea4e>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00384-ip-10-147-4-33.ec2.interna... |
Inversion in mergesort
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I am trying to implement the number of inversion in an array with entries {2,4,1,3,5}
On paper, this array will yield 3 inversions (2,1) (4,1) (4,3)
but with my code, it yields 5. where... | {"url":"http://forums.devshed.com/programming-42/inversion-mergesort-947904.html","timestamp":"2014-04-17T16:44:30Z","content_type":null,"content_length":"70639","record_id":"<urn:uuid:41aefe50-72bc-414c-a661-af441423cc5b>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00456-ip-10-147-... |
Wildomar Geometry Tutor
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differential enterprises
What's New
In the Monte Carlo tab, add the probability density function dynamic plot which updates as you drag the cursor beams to select probability level and days forward. This is the same data from the monte
carlo results as the cumulative distribution function (top yellow background graph),... | {"url":"http://www.148apps.com/app/412346415","timestamp":"2014-04-19T12:16:02Z","content_type":null,"content_length":"21707","record_id":"<urn:uuid:73d9a585-241b-4c02-9cea-2eaf0f0b99f9>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00013-ip-10-147-4-33.ec2.internal.warc.gz"} |
Open University
Engineers who wish to update their skills or learn new technologies without pursuing a specific degree may enroll in the School of Engineering’s Open University program.
Open University allows the students to:
• Examine a field of study before enrolling in a degree program
• Enhance your professiona... | {"url":"http://www.scu.edu/engineering/graduate/programs-2013/open-university.cfm","timestamp":"2014-04-19T17:41:16Z","content_type":null,"content_length":"49503","record_id":"<urn:uuid:a97bd93a-abca-48af-9118-ec60679b4875>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00534-ip-10-14... |
Marysville, WA SAT Math Tutor
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Klüppelberg, Claudia and Severin, M. (2001): Prediction of outstanding insurance claims. Collaborative Research Center 386, Discussion Paper 258
Metadaten exportieren
Autor(en) recherchieren
Building reserves for outstanding liabilities is an important issue in the financial statement of any insurance company. In this ... | {"url":"http://epub.ub.uni-muenchen.de/1638/","timestamp":"2014-04-20T10:51:42Z","content_type":null,"content_length":"27475","record_id":"<urn:uuid:d92d780d-5b34-4063-b099-d2c9b1fb4cc3>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00021-ip-10-147-4-33.ec2.internal.warc.gz"} |
Cluster Risk Parity back-test
March 4, 2013
By systematicinvestor
In the Cluster Portfolio Allocation post, I have outlined the 3 steps to construct Cluster Risk Parity portfolio. At each rebalancing period:
• Create Clusters
• Allocate funds within each Cluster using Risk Parity
• Allocate funds across all Clust... | {"url":"http://www.r-bloggers.com/cluster-risk-parity-back-test/","timestamp":"2014-04-18T03:24:08Z","content_type":null,"content_length":"38143","record_id":"<urn:uuid:032769c8-1f22-405f-8202-14615931d1f3>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00076-ip-10-147-4-33.ec2.intern... |
Sample Lessons – Grade 5
Sample Fifth Grade Math Lessons
• Over 1,300 lessons, with millions of paths through the curriculum
• Adaptive: lessons, hints, level of difficulty, pace, sequence, and much more are adapted for each student
• Virtual manipulatives help students solve problems multiple ways
• Standards:... | {"url":"http://www.dreambox.com/fifth-grade-math-lessons","timestamp":"2014-04-18T05:36:12Z","content_type":null,"content_length":"59146","record_id":"<urn:uuid:68fbad5e-d5c3-448c-866e-8fd48aa98203>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00118-ip-10-147-4-33.ec2.internal.warc.... |
Cotorsion group
From Encyclopedia of Mathematics
An Abelian group Extension of a group). For
Cotorsion groups can also be characterized by their injective property with respect to those exact sequences Exact sequence).
Epimorphic images of cotorsion groups are cotorsion, and so are the extensions of cotorsion groups by... | {"url":"http://www.encyclopediaofmath.org/index.php?title=Cotorsion_group","timestamp":"2014-04-19T07:02:52Z","content_type":null,"content_length":"21791","record_id":"<urn:uuid:44fe1299-d6ef-48df-ac93-3700b5d21918>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00142-ip-10-147-4-33.e... |
It is not the equations that are the problem
In the latest issue of PNAS there are several articles which the mathematically minded among you (and are involved in the mathematisation of your own fields) might enjoy.
James Gibbons asks the equations be not thrown out with theory bathwater.
Chitnis and Smith argue that m... | {"url":"http://mogadalai.wordpress.com/2012/11/07/it-is-not-the-equations-that-are-the-problem/","timestamp":"2014-04-21T12:24:28Z","content_type":null,"content_length":"46206","record_id":"<urn:uuid:77159694-0261-4386-8858-4e1636cb4c18>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-... |
the first resource for mathematics
Hyperasymptotics for nonlinear ODEs. II: The first Painlevé equation and a second-order Riccati equation.
(English) Zbl 1206.34077
Summary: This paper is a sequel to the author’s first part [Proc. R. Soc. Lond., Ser. A, Math. Phys. Eng. Sci. 461, No. 2060, 2503–2520 (2005; Zbl 1186.34... | {"url":"http://zbmath.org/?q=an:05213583","timestamp":"2014-04-17T06:47:06Z","content_type":null,"content_length":"21738","record_id":"<urn:uuid:14b87f7f-dd04-4baf-a5c2-9c6396080fc2>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00491-ip-10-147-4-33.ec2.internal.warc.gz"} |
Math Forum - Ask Dr. Math Archives: High School Coordinate Plane Geometry
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Research Programme 1.1: Number Theory and Algebra
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• dr. R.M. van Luijk
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• p... | {"url":"http://www.math.leidenuniv.nl/nl/research_groups/cluster1.1","timestamp":"2014-04-18T05:30:20Z","content_type":null,"content_length":"10738","record_id":"<urn:uuid:4e7b3299-4538-454a-859f-b692e4f806aa>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00286-ip-10-147-4-33.ec2.int... |
AIC Seminar Series
Logics of Formal Inconsistency
Notice: hosted by Richard Waldinger
Date: 2009-07-09 at 16:00
Location: EJ228 (SRI E building) (Directions)
According to the classical consistency presupposition, contradictions have an explosive disposition: Whenever they are present in a theory, anything goes, and n... | {"url":"http://www.ai.sri.com/seminars/detail.php?id=278","timestamp":"2014-04-20T05:43:13Z","content_type":null,"content_length":"10382","record_id":"<urn:uuid:b711492f-b103-4565-8bf6-f4915477754a>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00528-ip-10-147-4-33.ec2.internal.warc.... |
Propeller Speed Limits
Saturday, September 29th, 2012 11:36 am GMT -6 Saturday, September 29th, 2012 11:36 am GMT -6Saturday, September 29th, 2012 11:36 am GMT -6
Can we come up with an easy system for matching a propeller to a motor and an airplane?
The Challenge
I started flying electric RC model airplanes about twen... | {"url":"http://rcadvisor.com/propeller-speed-limits","timestamp":"2014-04-17T13:19:05Z","content_type":null,"content_length":"84280","record_id":"<urn:uuid:e3bfd016-9220-4159-878b-d8dd72b08f7d>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00626-ip-10-147-4-33.ec2.internal.warc.gz"} |
Specializing early
up vote 7 down vote favorite
Topic: this is a mathematics education question (but applies to other sciences too).
Assumptions: my first assumption is that most mathematical concepts used in research are not intrinsically more complicated to grasp than high-school and undergraduate maths, the main dif... | {"url":"http://mathoverflow.net/questions/16587/specializing-early/16825","timestamp":"2014-04-17T12:47:23Z","content_type":null,"content_length":"80580","record_id":"<urn:uuid:fb6a56f0-44be-440f-9588-64db9ee527e3>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00460-ip-10-147-4-33.ec... |
From Wikipedia, the free encyclopedia
(Redirected from
The joule (/ˈdʒuːl/ or sometimes /ˈdʒaʊl/), symbol J, is a derived unit of energy, work, or amount of heat in the International System of Units.^1 It is equal to the energy expended (or work done) in
applying a force of one newton through a distance of one metre ... | {"url":"http://www.bioscience.ws/encyclopedia/index.php?title=Gigajoule","timestamp":"2014-04-17T12:39:47Z","content_type":null,"content_length":"83977","record_id":"<urn:uuid:3cea57e8-741a-4f46-b136-7d99c0e0b22a>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00639-ip-10-147-4-33.ec2... |
Eikonal equation for a general anisotropic or chiral medium: application to a
We discuss the numerical simulation of a graded refractive index (GRIN) lens with a general anisotropic medium and compare it with an equivalent nongraded positive-index-of-refraction-material (PIM)
lens with an isotropic medium. To evaluate... | {"url":"http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-3-439","timestamp":"2014-04-17T23:08:03Z","content_type":null,"content_length":"143533","record_id":"<urn:uuid:b646bad6-3813-41aa-a737-03f82a2fe5bc>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00456-ip-10-147-4-3... |
Math 187 HOT List
Here is a short list of interesting cryptography web links to learn more about cryptography. If you find other web pages that you like that you think should be added to this list please e-mail them
to ma187s@insci14.ucsd.edu. The number of cryptography related sites seems to double every year, this li... | {"url":"http://www.math.ucsd.edu/~crypto/internet.html","timestamp":"2014-04-20T11:19:10Z","content_type":null,"content_length":"7451","record_id":"<urn:uuid:944aed16-46bf-4545-b82c-1559c90a3fa9>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00254-ip-10-147-4-33.ec2.internal.warc.gz"... |
Roslindale Prealgebra Tutor
Find a Roslindale Prealgebra Tutor
...I am currently a research associate in materials physics at Harvard, have completed a postdoc in geophysics at MIT, and received my doctorate in physics / quantitative biology at Brandeis
University. I will travel throughout the area to meet in your ... | {"url":"http://www.purplemath.com/Roslindale_prealgebra_tutors.php","timestamp":"2014-04-21T12:34:05Z","content_type":null,"content_length":"23977","record_id":"<urn:uuid:550cf23b-1645-4256-9a71-38baee16bd64>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00315-ip-10-147-4-33.ec2.inte... |
Electricity 101 - Ruralite Magazine
How it works and how to save money
For many people, that introductory lesson in electricity is where the education stops. Unless it is a job requirement, you may feel there is not much need to understand how electricity reaches your
home. You know that if you flip a switch, the light... | {"url":"http://www.ruralite.org/electricity-101/","timestamp":"2014-04-17T01:26:08Z","content_type":null,"content_length":"26681","record_id":"<urn:uuid:1baf963c-d842-4e84-a03d-52f194c4a7c9>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00290-ip-10-147-4-33.ec2.internal.warc.gz"} |
How do I calculate sunrise/sunset times for non-Earth planets? [Archive] - Cartographers' Guild
07-15-2012, 01:53 AM
I am trying to create a world, and I don't like to do things halfway. So I am starting from scratch: new star, new planet. I plan to keep them similar to Earth, but not exactly, which means I can't
just... | {"url":"http://www.cartographersguild.com/archive/index.php/t-19399.html","timestamp":"2014-04-16T14:31:50Z","content_type":null,"content_length":"22976","record_id":"<urn:uuid:f9c003d4-547b-43e2-a2af-e16d83aceec7>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00207-ip-10-147-4-33.ec... |
Population Dynamics - Part 2
Copyright © University of Cambridge. All rights reserved.
Discrete Modelling
We often use discrete mathematics to model a population when time is modelled in discrete steps. This fits well with annual censuses of wildlife populations.
Sometimes populations are themselves discrete, such a... | {"url":"http://nrich.maths.org/7104/index?nomenu=1","timestamp":"2014-04-16T04:59:23Z","content_type":null,"content_length":"7582","record_id":"<urn:uuid:e244f56a-6900-429e-877b-352de4d84b72>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00583-ip-10-147-4-33.ec2.internal.warc.gz"} |
The minimum number of photons per second?
1. The problem statement, all variables and given/known data
An owl has good night vision because its eyes can detect a light intensity as small as 4.5 10-13 W/m2. What is the minimum number of photons per second that an owl eye can detect if its pupil has a
diameter of 7.5 mm ... | {"url":"http://www.physicsforums.com/showthread.php?p=2728439","timestamp":"2014-04-16T10:33:38Z","content_type":null,"content_length":"23448","record_id":"<urn:uuid:b3022bbd-dcc6-488e-8d76-b9968369fccb>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00079-ip-10-147-4-33.ec2.internal.w... |
an investment
September 6th 2010, 02:19 PM #1
Sep 2009
an investment
an investment yields an annual interest of $1500. If $500 more is invested and the rate is 2% less, the annual interest is $1300. What is the amount of investment and the rate of interest?
Sounds like a job for some simultaneous equations.... | {"url":"http://mathhelpforum.com/algebra/155390-investment.html","timestamp":"2014-04-17T19:51:22Z","content_type":null,"content_length":"40065","record_id":"<urn:uuid:3260f12b-f066-4180-b9dc-b3476ecaa53d>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00406-ip-10-147-4-33.ec2.interna... |
compounded interest
December 15th 2007, 08:38 AM
compounded interest
Suppose you have a choice of keeping $500 for five years in a savings account with a 2% interest rate, or in a five year certificate of deposit with and interest rate of 4.5%. Calculate how much
interest you would earn with each option over fi... | {"url":"http://mathhelpforum.com/business-math/24909-compounded-interest-print.html","timestamp":"2014-04-20T21:15:06Z","content_type":null,"content_length":"5807","record_id":"<urn:uuid:0b07b561-fc69-48cf-8370-0942a5f18ad5>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00400-ip-10-1... |
green theorem or stokes????
June 27th 2013, 05:28 PM #1
May 2013
green theorem or stokes????
Hi,I dont think this is the normal integral.
Please help with approach.thanks.i get confused btwn greens and stokes which is it?
∫(x²-2xy)dx+(x²y+3)dy where c is boundary of region defined by y^2=8x and x=2 ... | {"url":"http://mathhelpforum.com/calculus/220195-green-theorem-stokes.html","timestamp":"2014-04-17T14:00:13Z","content_type":null,"content_length":"36218","record_id":"<urn:uuid:4d074fb2-4f8a-4966-a13e-5b14764e1557>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00659-ip-10-147-4-33.... |
Ben Lomond, CA Math Tutor
Find a Ben Lomond, CA Math Tutor
...I will teach all levels from middle school mathematics up to calculus. I have extensive experience teaching international baccalaureate mathematics. I'm flexible in my teaching style, and will
work with parents, schools and students to determine the form... | {"url":"http://www.purplemath.com/Ben_Lomond_CA_Math_tutors.php","timestamp":"2014-04-19T07:20:02Z","content_type":null,"content_length":"23811","record_id":"<urn:uuid:39ae4c44-b676-4c5c-85d3-36e0fa32c183>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00261-ip-10-147-4-33.ec2.interna... |
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1. solve the following inequality. write your solution in inte... | {"url":"http://openstudy.com/updates/50a701e7e4b082f0b852e148","timestamp":"2014-04-16T08:05:03Z","content_type":null,"content_length":"35323","record_id":"<urn:uuid:850660b1-fc2a-4825-b670-fd746586d09f>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00011-ip-10-147-4-33.ec2.internal.w... |
Re: st: Video from multiple graph exports
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Re: st: Video from multiple graph exports
From Michael Hanson <mshanson@mac.com>
To statalist@hsphsun2.harvard.edu
Subject Re: st: Video from multiple graph exports
Date Wed, 03 Dec 2008 21:06... | {"url":"http://www.stata.com/statalist/archive/2008-12/msg00188.html","timestamp":"2014-04-21T15:46:43Z","content_type":null,"content_length":"16517","record_id":"<urn:uuid:c96afd16-1453-48c7-ad23-1c640c9b892d>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00314-ip-10-147-4-33.ec2.int... |
Casting Out Nines for 2nd Graders
Date: 07/05/2004 at 20:39:42
From: Donna
Subject: Casting Out Nines
Dear Dr. Math,
Can you please send me a simpler explanation of WHY the Casting Out
Nines method works than you have in your archives? I understand how
to do it, but I need to know why it works. I have to present this... | {"url":"http://mathforum.org/library/drmath/view/65299.html","timestamp":"2014-04-16T16:51:51Z","content_type":null,"content_length":"8931","record_id":"<urn:uuid:a69fcf3d-bf82-4864-978e-eddfbfe9dfb6>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00172-ip-10-147-4-33.ec2.internal.war... |
Wallington Prealgebra Tutor
Find a Wallington Prealgebra Tutor
...I have experience tutoring in both of these subjects as well as SAT Math. I tutored a Junior in HS for the SAT Math section, a freshman in HS in all subjects, a 6th and 8th grader in Math, as
well as students at the elementary age (K-6) in all subjec... | {"url":"http://www.purplemath.com/wallington_nj_prealgebra_tutors.php","timestamp":"2014-04-16T07:53:43Z","content_type":null,"content_length":"24227","record_id":"<urn:uuid:dc954ef4-2628-4aca-a421-189722a476eb>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00194-ip-10-147-4-33.ec2.i... |
Insertion Sort Algorithm in Descending Order
12-07-2011, 01:11 AM
Insertion Sort Algorithm in Descending Order
Below I have listed my code for insertion sort algorithm that sorts in ascending order. I cannot for the life of me figure out how to turn it into descending order. I'm sure it is simple, but I
need he... | {"url":"http://www.java-forums.org/advanced-java/52266-insertion-sort-algorithm-descending-order-print.html","timestamp":"2014-04-16T22:18:50Z","content_type":null,"content_length":"13460","record_id":"<urn:uuid:b044be14-feb3-48f8-966f-fd5a3bf831e2>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-2014... |
Pacific Institute for the Mathematical Sciences - PIMS
Scientific General Events
• The Alberta Topology Seminar (ATS) retreat will be held at the Goldeye resort outside Nordegg, AB.
• This meeting focuses on unsolved problems in low-dimensional homotopy theory
and combinatorial group theory. These include Whit... | {"url":"http://www.pims.math.ca/scientific/general-event/random-walks-random-environments?page=12","timestamp":"2014-04-16T10:13:41Z","content_type":null,"content_length":"30082","record_id":"<urn:uuid:71570170-2780-4091-8075-fec4350cf8b8>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-2014041600520... |
Induction proofs
October 14th 2009, 07:16 PM
Induction proofs
1. Give a sentence P(n) depending on a natural number n, such that P(1),P(2),...,P(99) are true but P(100) is false. Make the sentence as simple as possible.
2. Let <a> be a sequence satisfying a1=a2=1 and a_n = 1/2(a_n-1 + 2/(a_n-2)) for n greater t... | {"url":"http://mathhelpforum.com/advanced-algebra/108130-induction-proofs-print.html","timestamp":"2014-04-18T22:54:48Z","content_type":null,"content_length":"4626","record_id":"<urn:uuid:95d27a9d-9686-458c-bba6-275bdef7f03d>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00203-ip-10-... |
T.: Vogt’s theorem on categories of homotopy coherent diagrams
Results 1 - 10 of 16
, 1996
"... this paper we try to lay some of the foundations of such a theory of categories `up to homotopy' or more exactly `up to coherent homotopies'. The method we use is based on earlier work on: ..."
Cited by 22 (6 self)
Add to Me... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1114611","timestamp":"2014-04-18T01:02:48Z","content_type":null,"content_length":"33199","record_id":"<urn:uuid:8af5e0b3-64b3-4a46-8722-13b8828391ff>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00580-ip-10-147-4-33.ec2.internal.wa... |
A Sparse Coding Method for Specification Mining and Error Localization
Wenchao Li and Sanjit A. Seshia
EECS Department
University of California, Berkeley
Technical Report No. UCB/EECS-2011-163
December 25, 2011
Formal specifications play a central role in the design, verification, and debugging of systems. We consider ... | {"url":"http://www.eecs.berkeley.edu/Pubs/TechRpts/2011/EECS-2011-163.html","timestamp":"2014-04-17T06:44:04Z","content_type":null,"content_length":"6689","record_id":"<urn:uuid:f82339ad-368e-4512-a6b3-8789f7e75555>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00385-ip-10-147-4-33.e... |
The Classical Model
This page describes the Classical Model.
The Production Function and the Demand for Labor
The Production Function
In the classical production function, output Y is taken to be a function of capital K and labor N. (The notation for labor suggests the number of hours or the number of workers.) In the ... | {"url":"http://econmacro.com/classical/classical_model.htm","timestamp":"2014-04-19T11:56:15Z","content_type":null,"content_length":"7168","record_id":"<urn:uuid:b59c33f9-ad9d-4cf1-b241-c8a7300d48bf>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00274-ip-10-147-4-33.ec2.internal.warc... |
Temperature determining device and process - Felice, Ralph A.
The present invention relates to a radiation pyrometer useful for the measurement of the temperature of a radiating body. More particularly, the present invention relates to a radiation pyrometer
that enhances the resolution and repeatability of the measure... | {"url":"http://www.freepatentsonline.com/5772323.html","timestamp":"2014-04-19T07:03:52Z","content_type":null,"content_length":"94410","record_id":"<urn:uuid:f32c22cf-2365-404d-95e5-96795f51300b>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00412-ip-10-147-4-33.ec2.internal.warc.gz"} |
Green, CA SAT Math Tutor
Find a Green, CA SAT Math Tutor
...I worked for self-help and business guru Tony Robbins for 2 years and graduated from his 'Mastery University' one year training program. In addition, I worked for world class $500/hr business
coach Doc Barham for about a year. Finally, I have successfully ... | {"url":"http://www.purplemath.com/Green_CA_SAT_Math_tutors.php","timestamp":"2014-04-16T10:34:15Z","content_type":null,"content_length":"24187","record_id":"<urn:uuid:33496554-3249-4597-a545-07ddb225cfbb>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00240-ip-10-147-4-33.ec2.internal... |
Converting Rectanglar equation to polar equation
December 14th 2012, 05:35 PM #1
Junior Member
May 2012
Converting Rectanglar equation to polar equation
Dear Every one,
I need some help converting rectanglur implicit equation to polar equation:
9*(x^2+y^2)=(x^2+y^2-2y)^2. and I know the fact of r=\sqrt(... | {"url":"http://mathhelpforum.com/pre-calculus/209849-converting-rectanglar-equation-polar-equation.html","timestamp":"2014-04-18T17:45:43Z","content_type":null,"content_length":"34992","record_id":"<urn:uuid:28f4591e-22c4-4dcf-94ff-2bfe364b867b>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-2014041... |
RE: [SI-LIST] : Differential TDR "Measureme
RE: [SI-LIST] : Differential TDR "Measurements"
From: Farrokh Mottahedin (Farrokh.Mottahedin@quantum.com)
Date: Tue Apr 25 2000 - 14:48:42 PDT
Approach 2 only works if there is no coupling between the differential
signals. This would be the case if the pair members are suffic... | {"url":"http://www.qsl.net/wb6tpu/si-list5/0047.html","timestamp":"2014-04-18T20:45:26Z","content_type":null,"content_length":"9388","record_id":"<urn:uuid:c0987a25-67c4-48be-af60-9a3a003d313f>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00218-ip-10-147-4-33.ec2.internal.warc.gz"} |