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Are schemes pushouts of neighbourhoods and formal neighbourhoods?
up vote 3 down vote favorite
I have two questions, the first less important.
Let $X$ be a scheme, $x \in X$ a schematic point.
What is an elegant way of defining/characterizing the map $\operatorname{Spec}(O_{X,x}) \to X$?
This map can be defined by ... | {"url":"http://mathoverflow.net/questions/81892/are-schemes-pushouts-of-neighbourhoods-and-formal-neighbourhoods?answertab=votes","timestamp":"2014-04-17T13:04:32Z","content_type":null,"content_length":"70249","record_id":"<urn:uuid:717e0a75-bfaf-430c-8275-c0d24ca90830>","cc-path":"CC-MAIN-2014-15/segments/139760953013... |
Need help with spot light pixel shader [Archive] - OpenGL Discussion and Help Forums
01-18-2008, 09:18 AM
Obviously I am too dang stupid to figure something as simple as a spot light via pixel shader, so I am asking for help.
The light source can be anywhere in the view space, position and direction are given by light... | {"url":"http://www.opengl.org/discussion_boards/archive/index.php/t-163879.html","timestamp":"2014-04-16T10:44:19Z","content_type":null,"content_length":"13539","record_id":"<urn:uuid:4af27471-68f0-454c-8fd4-3b92a4593dd5>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00183-ip-10-147-... |
Higher category theory
Basic concepts
Basic theorems
Universal constructions
Extra properties and structure
1-categorical presentations
A $3$-category is any of several concepts that generalize $2$-categories one step in higher category theory. The original notion is that of a globular strict 3-category, but the one mo... | {"url":"http://www.ncatlab.org/nlab/show/3-category","timestamp":"2014-04-20T14:11:05Z","content_type":null,"content_length":"30135","record_id":"<urn:uuid:4020fe32-8f23-4c95-b9f1-ea8d8087c9a1>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00414-ip-10-147-4-33.ec2.internal.warc.gz"} |
Possible Answer
Explore This Topic: What are Roman Numerals? Roman Numerals are what Romans used to use for numbers. Different symbols have different numeral values. - read more
What does the roman numeral XXL mean? XXL is not a valid roman numeral. What are all the Roman numerals and what do they mean? The Roman numer... | {"url":"http://www.askives.com/what-is-what-number-is-xxl-in-roman-numerals.html","timestamp":"2014-04-17T19:29:28Z","content_type":null,"content_length":"31691","record_id":"<urn:uuid:87b64904-7a99-4e32-ae23-263efa8940c5>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00291-ip-10-147... |
Estimating the mean using confidence levels
July 14th 2009, 09:55 PM #1
Oct 2008
Estimating the mean using confidence levels
A company is interested in estimating the mean number of sick days taken by its employees. The firm's statistician selects 100 files at random and ntoes the number of sick days taken by e... | {"url":"http://mathhelpforum.com/advanced-statistics/95173-estimating-mean-using-confidence-levels.html","timestamp":"2014-04-19T01:52:27Z","content_type":null,"content_length":"43328","record_id":"<urn:uuid:cc789f36-8ad4-4205-aed1-48dea4d98d19>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416... |
Posts by
Posts by andy
Total # Posts: 803
explain the Eutectic and Eutectoid reaction in cast irons
Identify and discuss the main safety legislation applicable to the installation, commissioning operating and maintaining the tube swaging machine.
G(t)=5200/(1+12e^(-.52t)) Find G'(t) I keeo getting (-32448e^(-.52t))/(1... | {"url":"http://www.jiskha.com/members/profile/posts.cgi?name=andy","timestamp":"2014-04-18T17:16:53Z","content_type":null,"content_length":"27679","record_id":"<urn:uuid:9ad26e98-5527-4964-bdd1-c4a185b59db3>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00159-ip-10-147-4-33.ec2.inter... |
Re: LALR parsing
Torben AEgidius Mogensen <torbenm@diku.dk>
Mon, 07 Dec 2009 11:43:20 +0100
From comp.compilers
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Mathematical SciencesDefining metabolically healthy obesity: role of dietary and lifestyle factorsAn investigation of post-primary students' images of mathematicsDifferential and numerical models of hysteretic systems with stochastic and deterministic inputsFinancial modelling with 2-EPT probability density functions
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Butztown, PA Math Tutor
Find a Butztown, PA Math Tutor
...Every student can be successful --- we, as educators, need to find the right learning style/method(s) to allow the student to experience success. I live in the Easton/Bethlehem area and will
travel to your home --- preferably in the early evening and/or on t... | {"url":"http://www.purplemath.com/Butztown_PA_Math_tutors.php","timestamp":"2014-04-19T17:23:21Z","content_type":null,"content_length":"24064","record_id":"<urn:uuid:32562fc0-e3a5-49a1-980c-ff0769941eac>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00148-ip-10-147-4-33.ec2.internal.... |
River Rouge Trigonometry Tutor
Find a River Rouge Trigonometry Tutor
...Such topics have included high school chemistry, college general/organic chemistry, college biology, college calculus, college trigonometry, medical school biochemistry, and medical school
anatomy/physiology. I am very patient when it comes to ... | {"url":"http://www.purplemath.com/river_rouge_trigonometry_tutors.php","timestamp":"2014-04-19T17:13:19Z","content_type":null,"content_length":"24215","record_id":"<urn:uuid:ce9d30d2-36c4-40cc-8f8a-b49c56f8622c>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00195-ip-10-147-4-33.ec2.i... |
North Attleboro Prealgebra Tutor
...I am a certified teacher with Masters' degrees in Clinical Social Work and special education. I hold Professional level certification in Elementary Education (Pre-K to 6) and and Moderate
Special Needs (K-8). This is my 14th year working as a special educator in Massachusetts. I ... | {"url":"http://www.purplemath.com/North_Attleboro_Prealgebra_tutors.php","timestamp":"2014-04-19T02:22:23Z","content_type":null,"content_length":"24475","record_id":"<urn:uuid:c1d66eff-39c5-4051-9bed-06728e017f5f>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00564-ip-10-147-4-33.ec2.... |
Model Keeps Running Forever (fails to terminate)
First, thanks for providing such a useful software package!
Second, I am having some trouble getting my model to finish running, and since I have to manually stop the script, I don't get any helpful output that would help me debug. Please find attached my
A brief descrip... | {"url":"http://openmx.psyc.virginia.edu/print/1276","timestamp":"2014-04-18T23:24:50Z","content_type":null,"content_length":"9658","record_id":"<urn:uuid:0eba601f-fd9a-44a8-bc30-50e77b1c7c57>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00595-ip-10-147-4-33.ec2.internal.warc.gz"} |
During The First Stage Of Its Launch, A Space Shuttle ... | Chegg.com
During the first stage of its launch, a space shuttle goes from rest to 4961 km/h while rising a vertical distance of 45.0 km . Assume constant acceleration and no variation in g over this distance.
What is the acceleration of the shuttle?
a =21.1 m/... | {"url":"http://www.chegg.com/homework-help/questions-and-answers/first-stage-launch-space-shuttle-goes-rest-4961-km-h-rising-vertical-distance-450-km--assu-q1325277","timestamp":"2014-04-25T04:23:54Z","content_type":null,"content_length":"26453","record_id":"<urn:uuid:4820cb61-0ab4-4430-a76e-9a0eb230bc2e>","cc-path":"C... |
Since 2002 Perimeter Institute has been recording seminars, conference talks, and public outreach events using video cameras installed in our lecture theatres. Perimeter now has 7 formal presentation
spaces for its many scientific conferences, seminars, workshops and educational outreach activities, all with advanced a... | {"url":"https://perimeterinstitute.ca/video-library?title=&page=610","timestamp":"2014-04-18T01:37:31Z","content_type":null,"content_length":"69299","record_id":"<urn:uuid:1506fe92-ac14-4697-a66d-0d62c1904c4d>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00519-ip-10-147-4-33.ec2.inte... |
CFI Forums | The two envelopes problem
The two envelopes problem
kkwan Posted: 04 November 2012 10:04 PM [ Ignore ] [ # 1546 ]
Sr. Member This is impossible. One person’s gain is the others loss in this set up.
Total Posts: 1822 From the respective perspectives of both players, there is potentia... | {"url":"http://www.centerforinquiry.net/forums/viewthread/12459/P1545/","timestamp":"2014-04-18T03:02:17Z","content_type":null,"content_length":"95610","record_id":"<urn:uuid:80b8436f-9a15-47ad-9497-cb1b2168235c>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00322-ip-10-147-4-33.ec2.... |
The Harmonic Oscillator
Next: The Rigid Rotor Up: Some Analytically Soluble Problems Previous: The Particle in a Contents
The Harmonic Oscillator
Now consider a particle subject to a restoring force
If we choose the energy scale such that
After some effort, the eigenfunctions are
The eigenvalues are
Next: The... | {"url":"http://vergil.chemistry.gatech.edu/notes/quantrev/node23.html","timestamp":"2014-04-19T07:28:38Z","content_type":null,"content_length":"8213","record_id":"<urn:uuid:7c9d5682-c903-4d01-8c37-b2993ac78135>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00052-ip-10-147-4-33.ec2.in... |
When analyzing a questionnaire, one often wants to view the correlation between two or more Likert questionnaire item’s (for example: two ordered categorical vectors ranging from 1 to 5). When
dealing with several such Likert variable’s, a clear presentation of all the pairwise relation’s between our variable can be ac... | {"url":"http://www.r-bloggers.com/tag/non-parametric/","timestamp":"2014-04-20T03:24:07Z","content_type":null,"content_length":"30122","record_id":"<urn:uuid:a589c16c-99f2-4f2a-ac43-dcf0838ca181>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00394-ip-10-147-4-33.ec2.internal.warc.gz"... |
A 1 Kg Mass And A 5 Kg Mass Are Connected By A ... | Chegg.com
A 1 kg mass and a 5 kg mass are connected by a 25 cm bar. Thesystem is then rotated horizontally at 300 rpm about an axis 10 cmfrom the 5 kg mass. What is the moment of inertia about this axis?What
is the rotational kinetic energy? | {"url":"http://www.chegg.com/homework-help/questions-and-answers/1-kg-mass-5-kg-mass-connected-25-cm-bar-thesystem-rotated-horizontally-300-rpm-axis-10-cmf-q413006","timestamp":"2014-04-19T18:04:28Z","content_type":null,"content_length":"19624","record_id":"<urn:uuid:9299c00d-ebd3-4433-a610-67234dc3bc60>","cc-path":"CC... |
Trees in groups of exponential growth
up vote 22 down vote favorite
Question: Let $G$ be a finitely generated group with exponential growth. Is there a finite generating set $S \subset G$, such that the associated Cayley graph $Cay(G,S)$ contains a binary tree?
Some background:
1. The existence of such a tree clea... | {"url":"http://mathoverflow.net/questions/60011/trees-in-groups-of-exponential-growth","timestamp":"2014-04-20T14:07:01Z","content_type":null,"content_length":"79827","record_id":"<urn:uuid:e3eeb3b0-aed0-44c9-b3a9-f6ef8d43107a>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00580-ip-1... |
Fairfax, VA Science Tutor
Find a Fairfax, VA Science Tutor
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Physiology, Biochemistry, Microarray and research practice. I enjoy work... | {"url":"http://www.purplemath.com/Fairfax_VA_Science_tutors.php","timestamp":"2014-04-18T13:30:13Z","content_type":null,"content_length":"23967","record_id":"<urn:uuid:94de30c8-9211-4452-be10-9c5b721c85cb>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00368-ip-10-147-4-33.ec2.interna... |
Inversive geometry question-ellipse and limacon
October 5th 2009, 01:05 PM #1
Sep 2009
Inversive geometry question-ellipse and limacon
I need to invert an ellipse about one of its foci. The ellipse in question has semi-minor axis of $\frac{\sqrt{2}}{2}$ and semi-major axis of 1.
After doing a little googlin... | {"url":"http://mathhelpforum.com/geometry/106289-inversive-geometry-question-ellipse-limacon.html","timestamp":"2014-04-19T22:15:58Z","content_type":null,"content_length":"29501","record_id":"<urn:uuid:01a63827-e0df-44d4-a29f-eaf912a4b6e1>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-2014041600521... |
Symplectic forms and 1-forms
up vote -4 down vote favorite
Suppose we have a real symplectic manifold $(M,\omega)$. Under what conditions can we find a global 1-form $\alpha$ such that $\omega = \alpha \wedge\alpha$?
Obviously there are some simple obstructions, for example, the cotangent bundle must admit a non-vanish... | {"url":"http://mathoverflow.net/questions/99098/symplectic-forms-and-1-forms?sort=oldest","timestamp":"2014-04-19T05:00:40Z","content_type":null,"content_length":"55142","record_id":"<urn:uuid:4acc258d-d723-43c0-884e-009591cb2175>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00597-i... |
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Getting [Math Processing Error] in Latex for every Latex code ... | {"url":"http://openstudy.com/updates/50a0f3c9e4b0e22d17eed503","timestamp":"2014-04-18T10:59:21Z","content_type":null,"content_length":"40027","record_id":"<urn:uuid:c31d915b-4b7d-40ee-9299-4808ddb43623>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00342-ip-10-147-4-33.ec2.internal.... |
Physics Forums - Relations between coefficient and exponent of Proth prime [itex]k\cdot 2^n+1[/itex]?
Relations between coefficient and exponent of Proth prime [itex]k\cdot 2^n+1[/itex]?
Definition: Proth number is a number of the form :
[itex]k\cdot 2^n+1[/itex]
where [itex]k[/itex] is an odd positive integer and [i... | {"url":"http://www.physicsforums.com/printthread.php?t=551704","timestamp":"2014-04-20T05:51:41Z","content_type":null,"content_length":"5855","record_id":"<urn:uuid:4c0bc36a-231a-44b7-a490-3c6047d98ce0>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00564-ip-10-147-4-33.ec2.internal.w... |
Few Trig Problems
February 14th 2010, 01:38 PM #1
Sep 2009
Few Trig Problems
1. (cos^2)T/1-sinT to 1+sinT
Show the steps to get the left side to equal 1+sint
2. find an interval (0,2(pie)) to solve cotT= sqrt3/ 3
3. Determine the width of a river with markers placed at each side in line withe the ba... | {"url":"http://mathhelpforum.com/trigonometry/128808-few-trig-problems.html","timestamp":"2014-04-17T13:24:56Z","content_type":null,"content_length":"55524","record_id":"<urn:uuid:6aee4786-0ca7-4aba-8fca-2349772bb462>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00106-ip-10-147-4-33... |
Two problems with integrals.
April 15th 2009, 03:07 PM #1
Aug 2007
Two problems with integrals.
I'm having difficulties with a few homework problems.
The first one I need to use u substitution to evaluate the definite integral on [-pi/2, pi/2] for ((x^2 * sinx)/(1 + x^6))dx
I'm just lost as to where to ... | {"url":"http://mathhelpforum.com/calculus/83926-two-problems-integrals.html","timestamp":"2014-04-19T12:21:19Z","content_type":null,"content_length":"34780","record_id":"<urn:uuid:5c5895f4-12c0-40b2-b594-ac960396e07c>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00567-ip-10-147-4-33... |
Animated Sine Curve
A circle, with radius 1, is centred on the origin. A point labelled 'C' rotates around the circle, starting at (1,0)
A point 'A', starting at (0,0), moves along the x axis, so that when C has completed one turn, A has moved (approx) 6.28 units.
Point 'B' is constrained to move so that its x coordina... | {"url":"http://www.mathisfunforum.com/viewtopic.php?pid=159593","timestamp":"2014-04-18T21:42:48Z","content_type":null,"content_length":"8714","record_id":"<urn:uuid:13423483-93a8-479c-bbd4-c354fcaa288d>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00551-ip-10-147-4-33.ec2.internal.w... |
What Kind Of State Secrets Does A President Know? - Page 4 - News, Politics and Current Events
I think the look on BO's face is,
WHAT THE HELL DID I GET MYSELF INTO.IF I NEW THEN WHAT I KNOW NOW I'D NEVER HAVE RUN.
Re: What Kind Of State Secrets Does A President Know?
BIG BEAM wrote:I think the look on BO's face is... | {"url":"http://nepacrossroads.com/about7658-45.html","timestamp":"2014-04-16T21:54:08Z","content_type":null,"content_length":"51948","record_id":"<urn:uuid:3334631a-4b2b-4141-89eb-2c2c9924d3ce>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00370-ip-10-147-4-33.ec2.internal.warc.gz"} |
Euler Midpot method
April 7th 2009, 01:17 AM #1
Mar 2009
Euler Midpot method
I have the equation
dy/dx=2e^-x-y^2 with y(0)=1
I have h=0.2 and need to find an approximation of y at x=0.4 using midpoint Eulers method.
So so far i have
and when n=0, t=0.4, x1=0 and x2=1
when n=1, t=0.5, x1=1 an... | {"url":"http://mathhelpforum.com/differential-equations/82672-euler-midpot-method.html","timestamp":"2014-04-19T20:36:28Z","content_type":null,"content_length":"28434","record_id":"<urn:uuid:aef46672-cc81-4f02-a57d-a40d5024b1c2>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00295-ip-... |
College of Natural Science and Mathematics
Department of Mathematics and Statistics
Graduate Certificate, M.S. Degrees; Minor
Statistics is a collection of methods and theories for making decisions or estimating unknown quantities from incomplete information. Statistical techniques are useful, for example, in estimatin... | {"url":"http://www.uaf.edu/catalog/catalog_12-13/programs/statistics.html","timestamp":"2014-04-19T01:59:08Z","content_type":null,"content_length":"10816","record_id":"<urn:uuid:7ac99bdb-7ce5-4ed6-87a7-f6244e498302>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00488-ip-10-147-4-33.ec... |
JCBDigger's Guides
Home XNA Contents Development Blog
I have converted examples of Ray to Triangle and BoundingSphere to Triangle intersections available on the Internet in to a XNA C# triangle class. It also includes a few other triangle related
Download Source Code
Triangle XNA class (4kb) Feb. 2010
The triangle uses... | {"url":"http://www.discoverthat.co.uk/games/xna-triangle.htm","timestamp":"2014-04-19T22:11:43Z","content_type":null,"content_length":"13953","record_id":"<urn:uuid:4ccf2c85-3c1a-4431-9b60-5b1b76cd9382>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00432-ip-10-147-4-33.ec2.internal.w... |
Math Forum Discussions - Re: ZFC and God
Date: Jan 23, 2013 8:36 AM
Author: Jesse F. Hughes
Subject: Re: ZFC and God
WM <mueckenh@rz.fh-augsburg.de> writes:
> On 23 Jan., 12:47, "Jesse F. Hughes" <je...@phiwumbda.org> wrote:
>> WM <mueck...@rz.fh-augsburg.de> writes:
>> > On 22 Jan., 21:18, "Jesse F. Hughes" <je...@phi... | {"url":"http://mathforum.org/kb/plaintext.jspa?messageID=8129767","timestamp":"2014-04-17T02:14:05Z","content_type":null,"content_length":"6539","record_id":"<urn:uuid:42a71123-0483-4c28-a197-03e19f7a134c>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00238-ip-10-147-4-33.ec2.interna... |
John and Jane started solving a quadratic equation. John mad
Question Stats:
90%9% (01:52)based on 71 sessions
itnas wrote:
John and Jane started solving a quadratic equation. John made a mistake while copying the constant term and got the roots as 5 and 9. Jane made a mistake in the coefficient of x and she got the ro... | {"url":"http://gmatclub.com/forum/john-and-jane-started-solving-a-quadratic-equation-john-mad-106597.html","timestamp":"2014-04-16T08:03:01Z","content_type":null,"content_length":"194304","record_id":"<urn:uuid:ba3a71de-eca3-46c3-8ac1-82044da26064>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-2014... |
Dynamics of Galaxies - Giuseppe Bertin
© CAMBRIDGE UNIVERSITY PRESS 2000
13.5. Equations for the guiding centers
13.5.1. Larmor oscillations and drifts
We briefly recall the basic idea about the guiding center description of particle orbits ^(9) (see Fig. 13.6). Consider a charged particle (charge q, and mass m) ... | {"url":"http://ned.ipac.caltech.edu/level5/Sept02/Bertin/Bertin13_5.html","timestamp":"2014-04-16T10:27:27Z","content_type":null,"content_length":"14887","record_id":"<urn:uuid:341df013-76d8-4c69-8dc2-b1c0358a64a2>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00217-ip-10-147-4-33.ec... |
User Chris Pressey
bio website catseye.tc
visits member for 1 year, 4 months
seen Dec 16 '12 at 20:49
stats profile views 43
My main interest is in the design of pathological programming languages. While this subject is not entirely (perhaps not even primarily) mathematical, it does rel... | {"url":"http://mathoverflow.net/users/29482/chris-pressey?tab=stats","timestamp":"2014-04-18T21:53:12Z","content_type":null,"content_length":"55514","record_id":"<urn:uuid:ff950b52-933d-4c08-a600-603bf546c702>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00077-ip-10-147-4-33.ec2.inte... |
rational map becomes a morphism after blow-ups
up vote 1 down vote favorite
In dimension 2, a rational map becomes a morphism after a sequence of blow-ups. Does this still hold in higher dimensions?
2 In light of the comments under abx's answer, it might be a good idea to clarify the question a bit; in particular, do ... | {"url":"http://mathoverflow.net/questions/149714/rational-map-becomes-a-morphism-after-blow-ups/149716","timestamp":"2014-04-19T19:45:22Z","content_type":null,"content_length":"57158","record_id":"<urn:uuid:d74f4f87-903b-4fad-9894-58d7349d0648>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416... |
Paradox Algorithm in Application of a Linear Transportation Problem
Osuji George A.^1, , Opara Jude^2, Nwobi Anderson C.^3, Onyeze Vitus^2, Iheagwara Andrew I.^4
^1Department of Statistics, Nnamdi Azikiwe University, Awka Anambra State Nigeria
^2Department of Statistics, Imo State University, Owerri Nigeria
^3Departmen... | {"url":"http://pubs.sciepub.com/ajams/2/1/3/index.html","timestamp":"2014-04-16T13:53:58Z","content_type":null,"content_length":"96708","record_id":"<urn:uuid:7f94d825-a9c5-4904-ae2e-51a372593f15>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00425-ip-10-147-4-33.ec2.internal.warc.gz"... |
AARTS, E.H.L.: Simulated Annealing: Theory and Applications
, 2000
"... INTRODUCTION In this paper we consider Simulated Annealing algorithms (SA in what follows) applied to continuous global optimization problems, i.e. problems with the following form f = min x2X f
(x); (1.1) where X ` ! n is a continuous domain, ofte... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1989662","timestamp":"2014-04-16T13:21:16Z","content_type":null,"content_length":"33305","record_id":"<urn:uuid:c4039899-d1d2-465e-8695-1f82d4ecc8a2>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00586-ip-10-147-4-33.ec2.internal.wa... |
2005-2006 UAF Catalog
College of Natural Science and Mathematics
Department of Mathematical Sciences
(907) 474-7332
Minimum Requirements for Degrees: M.A.T.: 36 credits; M.S.: 30-35 credits; Ph.D.: 18 thesis credits
Downloadable PDF (58K)
The number of new fields in which professional mathematicians find employment gro... | {"url":"http://www.uaf.edu/catalog/catalog_05-06/programs/math_grad.html","timestamp":"2014-04-19T13:49:41Z","content_type":null,"content_length":"9774","record_id":"<urn:uuid:af1d2410-3a46-4b89-8fce-0d90dbc28d55>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00290-ip-10-147-4-33.ec2... |
Need recommendation for self teaching book
August 16th 2008, 05:00 PM #1
Need recommendation for self teaching book
As the title states, does anyone have an excellent self teaching trig. book they can recommend? Preferably one that proceeds in a logical fashion, tons of examples to work through, and solutions
t... | {"url":"http://mathhelpforum.com/trigonometry/46092-need-recommendation-self-teaching-book.html","timestamp":"2014-04-17T18:45:59Z","content_type":null,"content_length":"35060","record_id":"<urn:uuid:49f5314f-ac3e-47d8-b7e3-fd402f7a224b>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-... |
state biot savart law
2 answers
Biot-Savart law
A law of physics which states that the magnetic flux density (magnetic induction) near a long, straight conductor is directly proportional to the current in the conductor and inversely proportional
to the distance from the conductor. The field near a straight conductor ca... | {"url":"http://www.akaqa.com/question/q19192255777-State-biot-savart-law?page=1","timestamp":"2014-04-19T05:00:05Z","content_type":null,"content_length":"57093","record_id":"<urn:uuid:43b558f3-2ccc-4974-b33d-6122e49b6152>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00080-ip-10-147-... |
Riemann Integrable?
July 27th 2010, 05:50 PM #1
Jun 2010
Riemann Integrable?
I am asked to show that $\displaystyle \int^{1}_{0} \frac{x^{p - 1}}{1 - x} log \Bigl( \frac{1}{x} \Bigr) dx = \sum^{\infty}_{n = 0} \frac{1}{(n + p)^{2}}$ for p > 0. I have a lot of it so far,
and am basically on the cusp.
$\d... | {"url":"http://mathhelpforum.com/differential-geometry/152152-riemann-integrable.html","timestamp":"2014-04-19T20:43:07Z","content_type":null,"content_length":"58483","record_id":"<urn:uuid:3d3ef4ff-b66a-4ce8-8268-afa2ad8fb47c>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00046-ip-1... |
Think Stats
Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.
Think Stats: Probability and Statistics for Programmers is a textbook for a new kind of introductory prob-stat class. It emphasizes the use of statistics to explore large datasets. It takes a... | {"url":"http://my.safaribooksonline.com/9781449308117?portal=oreilly&cid=orm-cat-readnow-9781449308117","timestamp":"2014-04-18T18:49:16Z","content_type":null,"content_length":"73731","record_id":"<urn:uuid:ed1cd6e7-e76d-4541-af13-3f644956b39d>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-201404160... |
The Information Theoretic Approach to Cryptography
, 1975
"... A new definition of program-size complexity is made. H(A;B=C;D) is defined to be the size in bits of the shortest self-delimiting program for calculating strings A and B if one is given a
minimal-size selfdelimiting program for calculating strings C and D. ... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=3244181","timestamp":"2014-04-18T12:20:53Z","content_type":null,"content_length":"15269","record_id":"<urn:uuid:7d6cc701-2ac5-4908-a923-c82678d7d19b>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00364-ip-10-147-4-33.ec2.internal.wa... |
Physics Forums - View Single Post - Target in a shooting gallery
A target in a shooting gallery consists of a vertical square wooden board, 0.220m on a side and with mass 0.800 kg, that pivots on a horizontal axis along its top edge. The board is struck face-on at
its center by a bullet with mass 1.80g that is traveli... | {"url":"http://www.physicsforums.com/showpost.php?p=1676632&postcount=1","timestamp":"2014-04-20T21:22:29Z","content_type":null,"content_length":"9775","record_id":"<urn:uuid:2eb5ffff-fd6c-43ea-aea2-49316497eac2>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00380-ip-10-147-4-33.ec2.... |
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pleaaassee hellpp??
• one year ago
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Your que... | {"url":"http://openstudy.com/updates/510c25b1e4b0d9aa3c4729b4","timestamp":"2014-04-21T04:44:47Z","content_type":null,"content_length":"96088","record_id":"<urn:uuid:d8231a28-8433-4b1a-95ad-0029add6ec51>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00178-ip-10-147-4-33.ec2.internal.w... |
Flatness for infinity functors
up vote 8 down vote favorite
It is well known that for ordinary categories, if $C$ has finite limits and $D$ is cocomplete, and $A:C \to D $ is left-exact (i.e. preserves finite limits) then the left-Kan extension of $F$ along
the Yoneda embedding $y:C \hookrightarrow Set^{C^{op}}$ is lef... | {"url":"http://mathoverflow.net/questions/83350/flatness-for-infinity-functors","timestamp":"2014-04-19T18:03:21Z","content_type":null,"content_length":"50292","record_id":"<urn:uuid:d6cefc93-fcda-42a8-b902-2c398da65f42>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00487-ip-10-147-4... |
Garden Grove, CA Algebra 2 Tutor
Find a Garden Grove, CA Algebra 2 Tutor
...Every student has their own challenges and these must be addressed accordingly. I like to start from the beginning with a new student and find out exactly what is causing some lack of
understanding. I sincerely hope every student I work wit... | {"url":"http://www.purplemath.com/Garden_Grove_CA_Algebra_2_tutors.php","timestamp":"2014-04-16T13:34:06Z","content_type":null,"content_length":"24387","record_id":"<urn:uuid:4e76f841-ecee-452a-a912-74fec26b060e>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00518-ip-10-147-4-33.ec2.... |
Inverse cotangent: Transformations
Transformations and argument simplifications
Argument involving basic arithmetic operations
Involving cot^-1(- z)
Involving cot^-1(-z) and cot^-1(z)
Involving cot^-1(1/z)
Involving cot^-1(1/z) and cot^-1(z)
Involving cot^-1(z^1/2)
Involving cot^-1(z^1/2) and cot^-1(1/z^1/2)
Involving ... | {"url":"http://functions.wolfram.com/ElementaryFunctions/ArcCot/16/ShowAll.html","timestamp":"2014-04-18T00:36:57Z","content_type":null,"content_length":"210107","record_id":"<urn:uuid:6699d56a-0c78-49ee-8679-71cf79318940>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00546-ip-10-147... |
five lemma
Diagram chasing lemmas
Homological algebra
The five lemma is one of the basic lemmas of homological algebra, useful for example in the construction of the connecting homomorphism in the homology long exact sequence.
Let $\mathcal{A}$ be an abelian category. Consider a commutative diagram in $\mathcal{A}$ of ... | {"url":"http://ncatlab.org/nlab/show/five+lemma","timestamp":"2014-04-19T22:34:45Z","content_type":null,"content_length":"62813","record_id":"<urn:uuid:5f66aef4-271a-4dee-b44a-e6478094c592>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00470-ip-10-147-4-33.ec2.internal.warc.gz"} |
newbie ques - check double
"David Harmon" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> On Tue, 28 Sep 2004 17:43:34 GMT in comp.lang.c++, "Mike Wahler"
> <(E-Mail Removed)> wrote,
> >> if (d == floor(d))
> >> // d is an integer
> >
> >Another alternative is to use 'modf()'.
> And there are others. But... | {"url":"http://www.velocityreviews.com/forums/t285914-newbie-ques-check-double.html","timestamp":"2014-04-24T17:02:25Z","content_type":null,"content_length":"50329","record_id":"<urn:uuid:3e9cf32d-711c-4d88-a104-e1dee2826334>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00436-ip-10-... |
Evaluating a Function
August 27th 2012, 06:54 PM #1
Evaluating a Function
For the function f defined by f(x) = $2x^2-3x$
Evaluate: $\frac{f(x+h)-f(x)}{h}$
I'm solving the problem using a book which actually gives me step-by-step instructions. Thing is I have a confusion with the following distribution, and ... | {"url":"http://mathhelpforum.com/pre-calculus/202625-evaluating-function.html","timestamp":"2014-04-17T19:17:04Z","content_type":null,"content_length":"40794","record_id":"<urn:uuid:8333c79d-2a6f-4ba4-8a14-4ce38c193a90>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00252-ip-10-147-4-... |
red dwarf star
UCB976.1 is
a large terrestrial planet
, on an orbit about 45419*10
km from its star. Its' radius is 8259 km, its' mass is 4506. One year on UCB976.1 lasts 193 earth days, one day on UCB976.1 lasts 21 earth hours. Its' average surface temperature is 437, and it has
17 moons.
UCB976.2 is
a... | {"url":"http://www.galaxiki.org/cgi-bin/local/perl/galaxiki/wiki.pl?mode=star_planets&id=1821976&level=3&coord_x=63&coord_y=62&option=","timestamp":"2014-04-18T05:31:14Z","content_type":null,"content_length":"18824","record_id":"<urn:uuid:88ceac72-ed5d-4b6e-93f4-0f17be37ced8>","cc-path":"CC-MAIN-2014-15/segments/139822... |
Wolfram Demonstrations Project
Allan Plot of an Oscillator with Deterministic Perturbations
The Allan deviation is a statistical measure of the relative frequency instability of an oscillator on a sampling period . This Demonstration simulates an oscillator having white frequency noise
plus deterministic perturbations.... | {"url":"http://demonstrations.wolfram.com/AllanPlotOfAnOscillatorWithDeterministicPerturbations/","timestamp":"2014-04-16T21:53:58Z","content_type":null,"content_length":"44754","record_id":"<urn:uuid:0f3e15f2-fec5-49d2-b54a-ae48a9df6d44>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-... |
Patent US7764786 - Protection of a DES algorithm
1. Field of the Invention
The present invention relates to the field of encryption algorithms, in particular of DES type (Data Encryption Standard), executed by integrated circuits. The present invention more specifically
relates to the protection of the execution of a D... | {"url":"http://www.google.com/patents/US7764786?dq=6,108,703","timestamp":"2014-04-20T12:44:48Z","content_type":null,"content_length":"79908","record_id":"<urn:uuid:801f9119-2de5-4e5a-91e1-156c62045ba3>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00006-ip-10-147-4-33.ec2.internal.w... |
Given an integer n and a finite extension K of Q , find a polynomial of degree n that is irreducible over K
up vote 1 down vote favorite
Given a positive integer n and a finite extension $K$ of $\mathbb{Q}$, can one always find an irreducible polynomial in $K[x]$ of degree n? What if $n$ is prime?
The natural approach ... | {"url":"http://mathoverflow.net/questions/36617/given-an-integer-n-and-a-finite-extension-k-of-q-find-a-polynomial-of-degree-n","timestamp":"2014-04-18T16:19:30Z","content_type":null,"content_length":"66871","record_id":"<urn:uuid:f74794b5-6b18-4b1a-941e-46fbeda8b5d9>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.... |
Find The forumula for the inverse of a given function
February 10th 2013, 09:37 AM #1
Jan 2011
Find The forumula for the inverse of a given function
So one problem is f(x)=x^3 , In my head I know its x^(1/3) because
Then i think I Do the third square root to both sides to get that answer but am not sure.
... | {"url":"http://mathhelpforum.com/algebra/212874-find-forumula-inverse-given-function.html","timestamp":"2014-04-17T20:44:26Z","content_type":null,"content_length":"40574","record_id":"<urn:uuid:1260a6cb-a658-4741-8493-2c4c0873a640>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00013-... |
Thevenin-Norton equivalencies
Since Thevenin's and Norton's Theorems are two equally valid methods of reducing a complex network down to something simpler to analyze, there must be some way to convert a Thevenin equivalent
circuit to a Norton equivalent circuit, and vice versa (just what you were dying to know, right?)... | {"url":"http://www.allaboutcircuits.com/vol_1/chpt_10/10.html","timestamp":"2014-04-21T10:27:52Z","content_type":null,"content_length":"14554","record_id":"<urn:uuid:d9509646-4580-402d-8a1f-bd6296f95c0c>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00064-ip-10-147-4-33.ec2.internal.w... |
Subsums of a Zero-sum Free Subset of an Abelian Group
Let $G$ be an additive finite abelian group and $S \subset G$ a subset. Let f$(S)$ denote the number of nonzero group elements which can be expressed as a sum of a nonempty subset of $S$. It is
proved that if $|S|=6$ and there are no subsets of $S$ with sum zero, th... | {"url":"http://www.combinatorics.org/ojs/index.php/eljc/article/view/v15i1r116/0","timestamp":"2014-04-21T13:20:46Z","content_type":null,"content_length":"14922","record_id":"<urn:uuid:bfaf9a0e-0eee-4e18-ac0b-99a903836a5a>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00295-ip-10-147... |
Section: Linux Programmer's Manual (3) Updated: 2010-09-20 Local index Up
tgamma, tgammaf, tgammal - true gamma function
#include <math.h>
double tgamma(double x);
float tgammaf(float x);
long double tgammal(long double x);
Link with -lm.
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
tgamma(),... | {"url":"http://www.makelinux.net/man/3/T/tgammaf","timestamp":"2014-04-17T01:41:55Z","content_type":null,"content_length":"12381","record_id":"<urn:uuid:2b612b24-d262-4ff5-be6e-8a5a8cdf0f34>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00597-ip-10-147-4-33.ec2.internal.warc.gz"} |
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional
development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. More information on many ... | {"url":"http://nrich.maths.org/public/leg.php?group_id=40&code=218","timestamp":"2014-04-17T01:20:28Z","content_type":null,"content_length":"57143","record_id":"<urn:uuid:c06793ac-e8dd-4ec0-8751-8e78d9992922>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00499-ip-10-147-4-33.ec2.inte... |
Help needed with martices and conics
June 25th 2007, 12:24 PM #1
Jun 2007
I'm not sure this is where I should put this, but I didn't see anywhere else:
Using the determinant of a matrix representing a conic,
[a b d]
[b c e]
[d e f]
where the equation of the conic is
and the determinant o... | {"url":"http://mathhelpforum.com/advanced-algebra/16268-help-needed-martices-conics.html","timestamp":"2014-04-17T07:38:14Z","content_type":null,"content_length":"32872","record_id":"<urn:uuid:48282d27-1a8f-4107-836c-669adad2fc1d>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00418-i... |
Posts by
Total # Posts: 13
A particle starts at the point (5,0) at t=0 and moves along the x-axis in such a way that at time t>0 its velocity v(t) is given by v(t)= t/(1+t^2). a). Determine the maximum velocity of the
particle. Justify your answer. b). Determine the position of the particle at t=6. c...
ALGEBRA 1 HELP... | {"url":"http://www.jiskha.com/members/profile/posts.cgi?name=rasheda","timestamp":"2014-04-19T07:33:35Z","content_type":null,"content_length":"8750","record_id":"<urn:uuid:6086ff8a-7daa-4d0a-8f08-626f5a7344b1>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00097-ip-10-147-4-33.ec2.int... |
Math Forum - Ask Dr. Math Archives: Elementary Multiplication
This page:
Dr. Math
See also the
Dr. Math FAQ:
multiplication facts
order of operations
Internet Library:
T2T FAQ:
learning to multiply
3D and higher
Golden Ratio/
Fibonacci Sequence
Number Sense/
About Numbers
large numbers
place value
prime numbers
square ... | {"url":"http://mathforum.org/library/drmath/sets/elem_multiplication.html?start_at=121&num_to_see=40&s_keyid=39606828&f_keyid=39606829","timestamp":"2014-04-16T04:41:00Z","content_type":null,"content_length":"21364","record_id":"<urn:uuid:768f0a11-a60d-400d-8934-9dbc1e109c57>","cc-path":"CC-MAIN-2014-15/segments/139760... |
Le Monde puzzle [#827]
ack to R (!) for the current Le Monde puzzle:
Given an unknown permutation of the set {1,…,6}, written on the faces of a cube, there exist a sequence of summits such that increasing by one unit the three numbers of the faces sharing the
successive summits in the sequence leads to identica... | {"url":"http://xianblog.wordpress.com/2013/07/03/le-monde-puzzle-827/","timestamp":"2014-04-20T06:45:55Z","content_type":null,"content_length":"36251","record_id":"<urn:uuid:ee4222a6-90ae-4cdb-9fbd-a45025d20dfb>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00256-ip-10-147-4-33.ec2.i... |
Help solving linear equations - Math and Physics
Hi I'm trying to implement a fast triangle-triangle intersection algorithm (Tropp06,
In Stage 4 of the paper I have found the line of intersection between the plane of triangle B and triangle A, this a vector t emenating from a point T.
The edge of B that I'm looking for... | {"url":"http://www.gamedev.net/topic/607554-help-solving-linear-equations/","timestamp":"2014-04-20T08:26:26Z","content_type":null,"content_length":"107990","record_id":"<urn:uuid:96c4a279-8264-4e72-a2df-5021e7c2b942>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00108-ip-10-147-4-33.... |
ModelDB: Medial reticular formation of the brainstem: anatomy and dynamics (Humphries et al. 2006, 2007)
This code is freely available for modifcation and extension, please
cite the original sources (see below). For discussion and assistance
please contact: m.d.humphries@shef.ac.uk or drmdhumphries@gmail.com
This MATL... | {"url":"http://senselab.med.yale.edu/ModelDB/ShowModel.asp?model=128816","timestamp":"2014-04-21T09:41:05Z","content_type":null,"content_length":"20997","record_id":"<urn:uuid:70fb9083-58da-4fc0-af16-230ee712b114>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00459-ip-10-147-4-33.ec2... |
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The product of n whole numbers 1 x 2 x 3 x 4 x ... x (n-1) x n... | {"url":"http://openstudy.com/updates/4f82a1b5e4b0505bf083e6b7","timestamp":"2014-04-17T06:52:24Z","content_type":null,"content_length":"76548","record_id":"<urn:uuid:2d49c146-1ec6-4678-93e8-029269883441>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00354-ip-10-147-4-33.ec2.internal.... |
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Homework Help
Posted by Alex on Saturday, February 21, 2009 at 4:39pm.
How do I solve lim(x-->pi/4)(sinx-cosx)/cos(2x)
The (x-->pi/4) goes below the lim.
Should i just substitute the x's with pi/4??
• Calculus - Alex, Saturday, February 21, 2009 at 5:07pm
This question is related to limits.
• Calculus - drwls, ... | {"url":"http://www.jiskha.com/display.cgi?id=1235252355","timestamp":"2014-04-21T04:01:07Z","content_type":null,"content_length":"10830","record_id":"<urn:uuid:3620ded9-20ee-4515-8a8c-ed49310f861c>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00407-ip-10-147-4-33.ec2.internal.warc.gz... |
April 20th
April 20th
Basic Algebraic Operations and Simplification
We can say that the basic algebraic operations you must master are:
• addition (of two or more terms or expressions)
• subtraction (of one term or expression from another)
• multiplication (of one term or expression by another) In the case of m... | {"url":"http://www.algebra-online.com/tutorials-2/algebraic-operations-simplification-1.htm","timestamp":"2014-04-20T03:38:54Z","content_type":null,"content_length":"19501","record_id":"<urn:uuid:bcb88187-ac83-4662-8a78-75bdf380df40>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-0008... |
Homework Help
Posted by Anonymous on Friday, August 14, 2009 at 9:21pm.
What is the exact value of cot(5(pi)/6)?
• MATH - MathMate, Friday, August 14, 2009 at 9:58pm
= cos(5π/6) / sin(5π/6)
= sin(π/2 - 5π/6)/ cos(π/2 - 5π/6)
= sin(-π/3)/cos(-π/3)
= -sin(π/3)/cos(π/3)
= -(sqrt(3)/2)/(1/2)
= -sq... | {"url":"http://www.jiskha.com/display.cgi?id=1250299286","timestamp":"2014-04-18T04:40:23Z","content_type":null,"content_length":"8720","record_id":"<urn:uuid:1ff38063-4626-4d5c-bc55-d1015ee53236>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00546-ip-10-147-4-33.ec2.internal.warc.gz... |
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- IN ISSCC DIGEST OF TECHNICAL PAPERS , 1995
"... A CMOS 64 x 64 pixel area image sensor chip using Sigma-Delta modulation at each pixel for A/D conversion is described. The image data output is digital. The chip was fabricated using a 1.2µm
two layer metal single layer poly n-well CMOS process. Ea... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1327751","timestamp":"2014-04-18T14:28:40Z","content_type":null,"content_length":"38011","record_id":"<urn:uuid:b3095462-8c9f-4eca-b6db-49581c1c6263>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00221-ip-10-147-4-33.ec2.internal.war... |
[plt-scheme] call/cc puzzle
From: Jon Rafkind (rafkind at cs.utah.edu)
Date: Sat Jan 17 14:22:00 EST 2009
Henk Boom wrote:
> 2009/1/17 Jos Koot <jos.koot at telefonica.net>:
>> Is that a quation or just a nice gesture?
>> Jos
> The latter. I had fun coming up with it and figuring out why it did
> what it did, and I tho... | {"url":"http://lists.racket-lang.org/users/archive/2009-January/029808.html","timestamp":"2014-04-19T17:28:51Z","content_type":null,"content_length":"6677","record_id":"<urn:uuid:a4491a3a-1160-4d39-836d-f1a17db5650f>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00367-ip-10-147-4-33.... |
Physics Forums - Pressure, Buoyant Force problem
ChunkymonkeyI Nov13-11 04:07 PM
Pressure, Buoyant Force problem
1. The problem statement, all variables and given/known data
A cube of metal(density=6.00 kg/dm^3) has a cavity inside it. It weighs 2.40 times as much in air as it does when completely submerged in water... | {"url":"http://www.physicsforums.com/printthread.php?t=550151","timestamp":"2014-04-20T18:37:45Z","content_type":null,"content_length":"14368","record_id":"<urn:uuid:27823e2b-9279-49e8-8b17-ffd11c59c837>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00351-ip-10-147-4-33.ec2.internal.... |
A Resistor On A Wheatstone Bridge Is Replaced With ... | Chegg.com
A resistor on a Wheatstone bridge is replaced with a strain gage which has a nominal resistance of 120 Ohms and a gage factor of 2.06. The remaining resistors on this quarter-bridge Wheatstone bridge
circuit are 120 Ohm fixed resistors. What will the ou... | {"url":"http://www.chegg.com/homework-help/questions-and-answers/resistor-wheatstone-bridge-replaced-strain-gage-nominal-resistance-120-ohms-gage-factor-20-q2799554","timestamp":"2014-04-17T12:47:16Z","content_type":null,"content_length":"20766","record_id":"<urn:uuid:a3913c39-7820-4f9c-b2be-24d2bcae86ae>","cc-path":"C... |
comparitive bar chart
July 30th 2010, 02:00 PM
comparitive bar chart
Given the following data, if a comparative bar chart were to be made with percentages along the vertical axis, would row total or column total be used to calculate the percentages. The answer key
says row total. How do you know that because th... | {"url":"http://mathhelpforum.com/statistics/152396-comparitive-bar-chart-print.html","timestamp":"2014-04-18T21:20:11Z","content_type":null,"content_length":"4744","record_id":"<urn:uuid:ee845cdc-8608-42d2-b9c9-acac5f58260c>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00097-ip-10-14... |
The influence of network structure on correlations
Pernice et al. have developed an approach to analyze the influence of different network motifs on correlations between the activity of a pair of nodes.
To get the flavor of their approach, let's imagine a very simplified model, where the $N$-dimensional $\vc{x}$ is t... | {"url":"http://mathinsight.org/influence_network_structure_correlations","timestamp":"2014-04-19T19:36:22Z","content_type":null,"content_length":"13868","record_id":"<urn:uuid:9cf4aae1-9ec0-496f-99bd-9961a3f9ecc4>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00386-ip-10-147-4-33.ec2.... |
Angle of Photon after Compton Scattering
Ignore the Compton formula. I am referring to your own equations that you posted. You can write
sinφ = ...
cosφ = ...
(I was wrong adding the p
up front), square and add. This gives one equation with two unknowns, p
and λ'. The energy conservation equation will allow you to elim... | {"url":"http://www.physicsforums.com/showthread.php?t=336947","timestamp":"2014-04-23T20:46:03Z","content_type":null,"content_length":"47370","record_id":"<urn:uuid:6678466d-4097-4602-b6ee-cb3ad3a73e60>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00362-ip-10-147-4-33.ec2.internal.wa... |
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What is the solution of the system of equations?
• one year ... | {"url":"http://openstudy.com/updates/5083927fe4b041b051b96755","timestamp":"2014-04-18T10:39:21Z","content_type":null,"content_length":"85729","record_id":"<urn:uuid:e77db5a2-c582-4248-a5de-f44578908256>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00165-ip-10-147-4-33.ec2.internal.... |
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Good Night Open Study!
• one year ago
• one year ago
Your ... | {"url":"http://openstudy.com/updates/50d12f79e4b01186104983ca","timestamp":"2014-04-21T02:13:08Z","content_type":null,"content_length":"53807","record_id":"<urn:uuid:4d46e0ff-2bbc-482d-b4bd-ddbd0d187546>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00009-ip-10-147-4-33.ec2.internal.... |
Express Eigenvectors in terms of Eigenkets.
1. The problem statement, all variables and given/known data
One of the problems in our test is this.
Express the eigenvectors of [itex] J_y [/itex] in terms of the eigenkets of [itex] J^2 [/itex] and [itex] J_z [/itex] .
2. Relevant equations
3. The attempt at a solution
I k... | {"url":"http://www.physicsforums.com/showthread.php?t=586480","timestamp":"2014-04-17T07:20:36Z","content_type":null,"content_length":"20033","record_id":"<urn:uuid:81f492e4-3b1a-47b4-976f-131e9b3cede3>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00061-ip-10-147-4-33.ec2.internal.w... |
dissection (mathematics)
Cutting apart one or more figures and rearranging the pieces to make another figure. Dissection puzzles have been around for thousands of years. The problem of dissecting two equal squares to form
one larger square using four pieces dates back to at least the time of Plato (427–347 BC). In the ... | {"url":"http://www.daviddarling.info/encyclopedia/D/dissection.html","timestamp":"2014-04-21T07:23:54Z","content_type":null,"content_length":"8326","record_id":"<urn:uuid:8bda8d24-701e-4dd6-9ab7-2f96222cbb24>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00570-ip-10-147-4-33.ec2.inter... |
Charged Molecules
Next: Preliminary Investigations Up: Computational Techniques Previous: Supercells
If the molecular species to be modelled is charged special consideration must be given to obtaining a converged total energy, as the energy of a periodically repeated system with net charge diverges.
The limit of t... | {"url":"http://www.tcm.phy.cam.ac.uk/~mds21/report/node14.html","timestamp":"2014-04-16T19:01:12Z","content_type":null,"content_length":"6706","record_id":"<urn:uuid:0fa7aab6-065f-4a34-9f50-17de6159a469>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00490-ip-10-147-4-33.ec2.internal.w... |
Probability Test
Gah i posted 2 questions about my test earlier, cud u pls check it
Last edited by andrew2322; May 10th 2008 at 07:51 PM.
Hello, Questions 1, 2 and 3 are ok. Question 4 : a.) The first marble picked is black and the second is red: 5/36 I don't see any black marble :/ b.) Obtaining 2 white marbles: 1/16 ... | {"url":"http://mathhelpforum.com/statistics/35634-probability-test.html","timestamp":"2014-04-17T15:15:09Z","content_type":null,"content_length":"67177","record_id":"<urn:uuid:c1fbf09a-5f15-4e8e-af33-ea8de6b07a7e>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00480-ip-10-147-4-33.ec2... |
River Grove Statistics Tutor
...I currently tutor two students in Prealgebra and like to instill confidence in them so they know that math is something you can be good at if you do it enough. When I took the Basic Skills test
for my teaching certificate I received a perfect score on the math section. Currently I am... | {"url":"http://www.purplemath.com/River_Grove_Statistics_tutors.php","timestamp":"2014-04-20T07:04:28Z","content_type":null,"content_length":"23929","record_id":"<urn:uuid:f73dd110-5c28-4420-9471-c08b3140d683>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00220-ip-10-147-4-33.ec2.int... |
Foundations of Electrical Engineering 2nd Edition Chapter 7.3 Solutions | Chegg.com
In a common emitter configuration, the output is considered across the collector –emitter terminals.
Write the equation for the voltage
It is clear from the equation (1) that as the output voltage across collector-emitter terminals chan... | {"url":"http://www.chegg.com/homework-help/foundations-of-electrical-engineering-2nd-edition-chapter-7.3-solutions-9780130927019","timestamp":"2014-04-16T05:44:42Z","content_type":null,"content_length":"26385","record_id":"<urn:uuid:daee5631-7be7-4cbd-9200-a134f0240591>","cc-path":"CC-MAIN-2014-15/segments/139760952151... |
Measurement of Characteristics of Sound Reflection and Scattering by Elastic Cylindrical Shells in Conditions of Hydroacoustic Basin
St. Petersburg State Marine Technical University, St. Petersburg, Russia
A method and experimental setup intended for measurement the amplitude and phase of acoustic field in the near zon... | {"url":"http://pubs.sciepub.com/ijp/1/1/2/index.html","timestamp":"2014-04-18T16:17:00Z","content_type":null,"content_length":"115760","record_id":"<urn:uuid:a85c5822-6275-40ff-9ad1-dd2d9674cf4c>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00594-ip-10-147-4-33.ec2.internal.warc.gz"} |
Matrix multiplication help
12-05-2007 #1
Registered User
Join Date
Oct 2007
Matrix multiplication help
I have to do a program to multiply two matrices using 1d arrays, but I am not sure how to begin. What would I need to get from the user--the number of rows in the first array and cols in the
second or just... | {"url":"http://cboard.cprogramming.com/cplusplus-programming/96637-matrix-multiplication-help.html","timestamp":"2014-04-17T05:08:21Z","content_type":null,"content_length":"104277","record_id":"<urn:uuid:9dbc407a-a467-44c2-b6c4-21a407057a22>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005... |
Math vocab chapter 8
14 terms · chapter 8 cpm math vocab
Ajacent Angles
angles which share a common side and vertex but no common interior parts
Associative Property
Changing the grouping of the numbers does not change the result in adddition
Associative Property for Multiplication
changing the grouping of the nu... | {"url":"http://quizlet.com/2333508/math-vocab-chapter-8-flash-cards/","timestamp":"2014-04-19T19:52:41Z","content_type":null,"content_length":"57396","record_id":"<urn:uuid:2ebed3ac-e657-4e1c-a8b7-97035ba8f607>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00155-ip-10-147-4-33.ec2.in... |
n A
Degree Name
Master of Science (MSc)
Physics and Astronomy
Committee Member
Erik Sorensen, Duncan O'Dell
In Part I, the relationship between the topology of the Fermi surface and the entanglement entropy S is examined. Spinless fermionic systems on one and two dimensional lattices at fixed chemical
potential are con... | {"url":"http://digitalcommons.mcmaster.ca/opendissertations/7487/","timestamp":"2014-04-21T04:38:31Z","content_type":null,"content_length":"24590","record_id":"<urn:uuid:8afe14dc-0c49-43ff-b570-40ba7c9d5681>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00082-ip-10-147-4-33.ec2.inter... |
• Online Information article about DETERMINANT definition of the determinant, and it is interesting to show how from these properties, assumed for the definition of, the determinant, it at once
appears that- the determinant is a function serving for the solution of a system. — “DETERMINANT - Online Information arti... | {"url":"http://crosswords911.com/determinant.html","timestamp":"2014-04-20T11:20:55Z","content_type":null,"content_length":"77706","record_id":"<urn:uuid:9705ee9a-8ab5-4707-b38d-f57d63894e40>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00097-ip-10-147-4-33.ec2.internal.warc.gz"} |
Tractatus 3.318 + MM comments
3.318 Like Frege and Russell I construe a proposition as a function of the expressions contained in it.
Perhaps there is a likeness, but surely there are also many differences. The problem with "a function of the expressions contained in it" is that it then becomes unclear what a propositi... | {"url":"http://www.maartensz.org/philosophy/wittgenstein/Tractatus/3/T3.318.html","timestamp":"2014-04-17T12:29:19Z","content_type":null,"content_length":"3885","record_id":"<urn:uuid:e071de5a-d9be-486d-b94d-db59ec3b6f94>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00168-ip-10-147-... |
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Factor the following expression. 198q3r2 – 184q2r2 + 18qr2
•... | {"url":"http://openstudy.com/updates/50be0920e4b09e7e3b858931","timestamp":"2014-04-20T08:46:52Z","content_type":null,"content_length":"49129","record_id":"<urn:uuid:68205ee5-a83b-4ff0-96a1-add14222d249>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00498-ip-10-147-4-33.ec2.internal.w... |
Re: [TowerTalk] Feedpoint Impedance
> Radiation resistance should be fixed..
Oh, right...duh.
The current equation will do - but the radiator (I may have confused things
by referring to it as a "dipole") may be anywhere between one-half and one
wavelength long, so the current won't be a simple cosine function. It
*wil... | {"url":"http://lists.contesting.com/_towertalk/2008-07/msg00774.html?contestingsid=484l0us4tj4uk7krkumrulhg15","timestamp":"2014-04-21T05:18:50Z","content_type":null,"content_length":"10975","record_id":"<urn:uuid:60165c75-5957-49f4-8684-3cd849e904a5>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-2... |
River Grove Statistics Tutor
...I currently tutor two students in Prealgebra and like to instill confidence in them so they know that math is something you can be good at if you do it enough. When I took the Basic Skills test
for my teaching certificate I received a perfect score on the math section. Currently I am... | {"url":"http://www.purplemath.com/River_Grove_Statistics_tutors.php","timestamp":"2014-04-20T07:04:28Z","content_type":null,"content_length":"23929","record_id":"<urn:uuid:f73dd110-5c28-4420-9471-c08b3140d683>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00220-ip-10-147-4-33.ec2.int... |
Summary: Math 3130 Midterm: Due Wednesday October 22 in Class
Remember to show your work!
Directions This is a take home, open notes test. There are eight problems on the test. You must
answer carefully and completely any five of the problems. You answer must be your own; you
are free to discuss problems with other stu... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/585/1725488.html","timestamp":"2014-04-18T04:19:26Z","content_type":null,"content_length":"8045","record_id":"<urn:uuid:8ff2cbf5-f289-4f6b-a47a-01bee684da8b>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00010-ip-10-147-... |
Sierra Madre SAT Math Tutor
Find a Sierra Madre SAT Math Tutor
...I received my high school's Spanish award for excellence in both spoken Spanish and classwork. Since high school, I have regularly practiced Spanish with friends who are native speakers.
Further, I have always had a great interest in grammar, so my S... | {"url":"http://www.purplemath.com/sierra_madre_sat_math_tutors.php","timestamp":"2014-04-17T13:16:03Z","content_type":null,"content_length":"24107","record_id":"<urn:uuid:c917512f-c969-47a4-9d42-625b5c6cf78a>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00172-ip-10-147-4-33.ec2.inte... |
Mount Hamilton Algebra 2 Tutor
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...These distractions may include other students, other stimuli, whether audio or visual, or any mental or physical unpreparedness on the student's part at the time. All these factors combined can
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FOM: What is the standard model for PA?
Vladimir Sazonov sazonov at logic.botik.ru
Wed Mar 18 12:21:44 EST 1998
Torkel Franzen wrote:
> Validimir Sazonov says:
> >You don't see anything indeterminate or unclear about the notion
> >"natural number" or you see that and how it is determinate?
> I don't see anythi... | {"url":"http://www.cs.nyu.edu/pipermail/fom/1998-March/001584.html","timestamp":"2014-04-20T23:27:50Z","content_type":null,"content_length":"10595","record_id":"<urn:uuid:2e4af850-8956-4a1a-9025-5c1a09384b2d>","cc-path":"CC-MAIN-2014-15/segments/1397609539337.22/warc/CC-MAIN-20140416005219-00137-ip-10-147-4-33.ec2.inte... |