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Thinkfinity Lesson Plans
Subject: Arts,Mathematics
Title: To Fret or Not to Fret
Description: In this unit of two lessons, from Illuminations, students explore geometric sequences and exponential functions by considering the placement of frets on stringed instruments. They study
the placement of frets on a fretted inst... | {"url":"http://alex.state.al.us/all.php?std_id=54481","timestamp":"2014-04-16T07:21:30Z","content_type":null,"content_length":"55496","record_id":"<urn:uuid:e162caab-4d17-4237-96cd-8ea79956ae62>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00238-ip-10-147-4-33.ec2.internal.warc.gz"} |
How to Add, Subtract, Multiply, and Divide with Units
How to Add, Subtract, Multiply, and Divide with Units
Anything that can be counted is a unit. Because you can count units, this means that you can apply the Big Four operations (addition, subtraction, multiplication, and division) to them.
Add and subtract units
Ad... | {"url":"http://www.dummies.com/how-to/content/how-to-add-subtract-multiply-and-divide-with-units.html","timestamp":"2014-04-20T05:15:01Z","content_type":null,"content_length":"50915","record_id":"<urn:uuid:1878c59c-e3d5-49a4-b36c-ac595354f25c>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-201404230... |
Power function: Series representations (subsection 06/01)
Generalized power series
Expansions at generic point a==a[0]
For the function itself
Expansions at a==0
For the function itself
Expansions at generic point z==z[0]
For the function itself
Expansions of f(z)^a at z==z[0]
Expansions on branch cuts
For the function... | {"url":"http://functions.wolfram.com/ElementaryFunctions/Power/06/01/ShowAll.html","timestamp":"2014-04-16T19:19:22Z","content_type":null,"content_length":"78097","record_id":"<urn:uuid:a954cb7a-337d-4682-b7ca-ca55f483b1cb>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00200-ip-10-14... |
Top Cited Articles during 1996 in hep-ex
The 50 most highly cited papers during 1996 in the hep-ex archive
Keep in mind that citation counts can never be exact, there is something like a 5% error in most of these numbers. Please do not fret about number... | {"url":"http://www.slac.stanford.edu/spires/topcites/1996/eprints/to_hep-ex_annual.shtml","timestamp":"2014-04-20T18:57:24Z","content_type":null,"content_length":"35117","record_id":"<urn:uuid:892af448-9a7f-41ee-9bd5-1ded46f25912>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00003-i... |
Designing for Reliability and Robustness
No design is free from uncertainty or natural variation. For example, how will the design be used? How will it respond to environmental factors or to changes in manufacturing or operational
processes? These kinds of uncertainty compound the challenge of creating designs that are... | {"url":"http://www.mathworks.es/company/newsletters/articles/designing-for-reliability-and-robustness.html?nocookie=true","timestamp":"2014-04-24T09:16:56Z","content_type":null,"content_length":"42729","record_id":"<urn:uuid:0eb59462-ae21-44ba-888c-0b97265f3a5c>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/war... |
[SOLVED] Probability question
December 17th 2009, 04:59 AM #1
Dec 2009
[SOLVED] Probability question
Basic calculator allowed (no graphic or T) please help me answer this review question with steps:
A bakery has determinate that the demand for its white bread has a normal distribution with a mean 7,200 loav... | {"url":"http://mathhelpforum.com/statistics/120933-solved-probability-question.html","timestamp":"2014-04-16T08:18:06Z","content_type":null,"content_length":"29233","record_id":"<urn:uuid:ad8b8b8b-4479-4c92-9129-35ed1cae813f>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00487-ip-10-... |
Curriculum Choices: Tackling Math - Simple Homeschool
When it comes to teaching math, some homeschooling mamas and papas have to stifle an inner groan. Many of us had bad experiences with this subject when we were in school, and we’re reluctant to pass
on that attitude to our bright-eyed kids.
This is why it’s especial... | {"url":"http://simplehomeschool.net/curriculum-choices-tackling-math/","timestamp":"2014-04-21T04:33:48Z","content_type":null,"content_length":"102555","record_id":"<urn:uuid:337eacc2-ecbb-4d27-9e1a-5a01a4d97165>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00272-ip-10-147-4-33.ec2.i... |
Squared Weights in MBH98
A couple of weeks ago, I said that I would document (at least for Jean S and UC) an observation about the use of squared weights in MBH98. I realize that most readers won’t be fascinated with this
particular exposition, but indulge us a little since this sort of entry is actually a very useful ... | {"url":"http://climateaudit.org/2008/04/05/squared-weights-in-mbh98/?like=1&source=post_flair&_wpnonce=1fd78fe65c","timestamp":"2014-04-19T05:47:19Z","content_type":null,"content_length":"125988","record_id":"<urn:uuid:d3806a72-6599-4db9-8bb0-94d6fcc85f6e>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MA... |
Semisimple Hopf algebras with commutative character ring
up vote 2 down vote favorite
Suppose that $A$ is a semisimple Hopf algebra with a commutative character ring. Does it follow that $A$ is quasitriangular, i.e $\mathrm{Rep}(A)$ is a braided tensor category?
I think I 've seen this statement in a paper without a pr... | {"url":"http://mathoverflow.net/questions/26363/semisimple-hopf-algebras-with-commutative-character-ring/26381","timestamp":"2014-04-17T07:37:52Z","content_type":null,"content_length":"50750","record_id":"<urn:uuid:96403889-28b3-4f13-8b7c-710b4671a350>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-... |
Water Resources of the United States
The following documentation was taken from:
U.S. Geological Survey Water-Resources Investigations Report 94-4002: Nationwide summary of U.S. Geological Survey regional regression equations for estimating magnitude and frequency of floods for
ungaged sites, 1993
North Dakota is divid... | {"url":"http://water.usgs.gov/software/NFF/manual/nd/index.html","timestamp":"2014-04-16T19:14:28Z","content_type":null,"content_length":"8302","record_id":"<urn:uuid:9404209d-e244-4fea-b1fb-c1a3393b9384>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00467-ip-10-147-4-33.ec2.internal... |
[SOLVED] Endless Chord - Oscillation?
June 1st 2009, 10:01 PM #1
[SOLVED] Endless Chord - Oscillation?
An endless chord consists of two portions of lengths $2l$ and $2l'$ respectively, knotted together. The mass per unit length of each string is $m$ and $m'$. It is placed in stable equilibrium
over a smooth peg... | {"url":"http://mathhelpforum.com/advanced-applied-math/91500-solved-endless-chord-oscillation.html","timestamp":"2014-04-19T10:59:48Z","content_type":null,"content_length":"39237","record_id":"<urn:uuid:5f62c29e-edc3-4e26-a2f9-c747f1cb7f9a>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-201404160052... |
Walk Like a Sabermetrician
Recently I have started reading the 2006 Hardball Times Baseball Annual. I will do a book review at some time in the future but for now it will suffice to say that you should probably get this book.
Anyway, for now I just have some comments on a technical issue that was brought up by reading ... | {"url":"http://walksaber.blogspot.com/2006/01/runs-per-win.html?showComment=1139174220000","timestamp":"2014-04-21T10:54:06Z","content_type":null,"content_length":"107084","record_id":"<urn:uuid:7b737c6f-d5dd-4846-95c8-f5a5f15f7020>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00276... |
Physics Forums - Can the electromagnetic vector potential be written in terms of a complex field?
Spinnor Nov18-12 11:03 AM
Can the electromagnetic vector potential be written in terms of a complex field?
Is there a complex field that when properly interpreted yields the four components of electromagnetic vector pot... | {"url":"http://www.physicsforums.com/printthread.php?t=653164","timestamp":"2014-04-21T07:24:19Z","content_type":null,"content_length":"4813","record_id":"<urn:uuid:01724991-66f0-4a12-aee7-f1040e4ec935>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00245-ip-10-147-4-33.ec2.internal.w... |
Very simple classification rules perform well on most commonly used datasets
Results 1 - 10 of 339
, 1996
"... In an earlier paper, we introduced a new “boosting” algorithm called AdaBoost which, theoretically, can be used to significantly reduce the error of any learning algorithm that consistently
generates classifie... | {"url":"http://citeseerx.ist.psu.edu/showciting?doi=10.1.1.103.7226","timestamp":"2014-04-20T15:00:12Z","content_type":null,"content_length":"41080","record_id":"<urn:uuid:a11ed47a-3bc2-4848-a2c8-fc0201827418>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00395-ip-10-147-4-33.ec2.int... |
• GyroMoment[bnum, vec, omega] returns a SysLoad data object that applies a moment to body bnum to simulate the gyroscopic effects of the axially symmetric body spinning with angular speed omega,
about an axis originating from the centroid of the body, parallel to vec. The constant angular velocity omega is relative to... | {"url":"http://reference.wolfram.com/applications/mechsystems/FunctionIndex/GyroMoment.html","timestamp":"2014-04-20T08:42:48Z","content_type":null,"content_length":"34033","record_id":"<urn:uuid:8a57ef4e-83d1-4349-aff8-818106c1c472>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00013... |
From Wikipedia, the free encyclopedia
Peridynamics is a formulation of continuum mechanics that is oriented toward deformations with discontinuities, especially fractures.
Purpose of peridynamics
The peridynamic theory is based on integral equations, in contrast with the classical theory of continuum mechanics, which i... | {"url":"http://www.thefullwiki.org/Peridynamics","timestamp":"2014-04-20T03:18:18Z","content_type":null,"content_length":"59437","record_id":"<urn:uuid:9186b13c-be65-4edf-aaae-77c1b3f65273>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00177-ip-10-147-4-33.ec2.internal.warc.gz"} |
Verify the following
could someone please give me some hints about how to prove this?
Suppose that $a,~b,~\&~c$ are positive integers such that $a>b$. Further, suppose that we have $a$ blue balls and $c+b$ red balls. Now we put the balls all together in a box from which we randomly
choose $b$ balls. Surely you can see ... | {"url":"http://mathhelpforum.com/number-theory/198415-verify-following.html","timestamp":"2014-04-17T19:24:56Z","content_type":null,"content_length":"42987","record_id":"<urn:uuid:ad9793d9-52a9-427a-8acc-01b7ef2bb12e>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00170-ip-10-147-4-33... |
s well-ordering theorem
proof of Zermelo's well-ordering theorem
proof of Zermelo’s well-ordering theorem
Let $X$ be any set and let $f$ be a choice function on $\mathcal{P}(X)\setminus\{\emptyset\}$. Then define a function $i$ by transfinite recursion on the class of ordinals as follows:
$i(\beta)=f(X-\bigcup_{{\gamm... | {"url":"http://planetmath.org/ProofOfZermelosWellOrderingTheorem","timestamp":"2014-04-18T23:17:07Z","content_type":null,"content_length":"71130","record_id":"<urn:uuid:fc7173d4-c6c3-4016-81fc-ac913d3cd474>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00022-ip-10-147-4-33.ec2.intern... |
Math Help
October 28th 2006, 12:21 AM #1
Oct 2006
need help!!!
If we have two sets, A and B, contained in the universal set
Can someone tell me why the smallest possible number of elements of
(A intersect B) occurs when A union B = universal set???
i know that
n(A intersect B) = n(A) + n(B) - n... | {"url":"http://mathhelpforum.com/discrete-math/6943-need-help.html","timestamp":"2014-04-19T08:40:04Z","content_type":null,"content_length":"35945","record_id":"<urn:uuid:f1334a6b-a508-4169-9d16-45c4615d6c62>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00276-ip-10-147-4-33.ec2.inte... |
Biographical Sketch of Henry W. Gould
Henry W. Gould, Professor Emeritus of Mathematics, West Virginia University, was born in Portsmouth, Va. (26 August 1928). He graduated from Woodrow Wilson High School in Portsmouth in Jan. 1946. He
studied at the Norfolk Divison of the College of William and Mary (now Old Dominion... | {"url":"http://www.math.wvu.edu/~gould/vita.html","timestamp":"2014-04-20T20:56:16Z","content_type":null,"content_length":"22190","record_id":"<urn:uuid:361af6d2-df21-452f-805e-eb7998aae52f>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00336-ip-10-147-4-33.ec2.internal.warc.gz"} |
Estimation of Taylor series
June 2nd 2013, 12:37 AM #1
Junior Member
Mar 2013
New Zealand
Estimation of Taylor series
For question 11 (which I think is more straightforward than 10), I think I have the answer, which is 2decimal places
For question 10, I end up with the following formula
R9 = (Co... | {"url":"http://mathhelpforum.com/calculus/219519-estimation-taylor-series.html","timestamp":"2014-04-17T23:02:56Z","content_type":null,"content_length":"33524","record_id":"<urn:uuid:b3345ac1-f347-41ca-85ba-32915a8eae56>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00160-ip-10-147-4... |
olecular-dynamics simulation
^Kai Kadau's web pages:
home page
molecular-dynamics simulations movie page (this page)
graphic page
sport page
Molecular-dynamics simulation movies
The MPEG-movies are results of large-scale molecular-dynamics simulations performed with the SPaSM code using massive parallel computing syste... | {"url":"http://www.thp.uni-duisburg.de/~kai/index_1.html","timestamp":"2014-04-18T09:46:20Z","content_type":null,"content_length":"18665","record_id":"<urn:uuid:77657ccf-72b6-4da9-89b9-ae725f2a2854>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00197-ip-10-147-4-33.ec2.internal.warc.... |
Median Filters: A Tutorial
- N ,” IEEE Transactions on Signal Processing , 1999
"... This paper is concerned with regression under a "sum" of partial order constraints. Examples include locally monotonic, piecewise monotonic, runlength constrained, and unimodal and oligomodal
regression. These are of interest not only ... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1963336","timestamp":"2014-04-17T15:42:49Z","content_type":null,"content_length":"21358","record_id":"<urn:uuid:0db18de1-f48c-4ec1-ad27-8cea414dddda>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00346-ip-10-147-4-33.ec2.internal.war... |
Method of moments
October 24th 2009, 09:51 PM #1
Mar 2009
X is a discrete RV with P(X=1) = p , P(X=2)=1-p; three independent observations of X are made x1=1, x2=2,x3=2.
a)find the method of moments estimate of p
In order to find the method of moments estimate of p, I know I need to find the 1st moment a... | {"url":"http://mathhelpforum.com/advanced-statistics/110228-method-moments.html","timestamp":"2014-04-17T05:34:33Z","content_type":null,"content_length":"62432","record_id":"<urn:uuid:7ec00ff7-570a-4ce2-8557-bb211aa54d36>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00395-ip-10-147-... |
Specialty sights: getting more from your lines of position
Jan 1, 2003
One of the drawbacks to sun-sight celestial navigation is that each sight yields only one LOP. Of course, a running fix is often possible, but that means a wait between sun sights of a couple of
hours or more to allow for the azimuth to change signi... | {"url":"http://www.oceannavigator.com/January-February-2003/Specialty-sights-getting-more-from-your-lines-of-position/","timestamp":"2014-04-20T15:51:14Z","content_type":null,"content_length":"22893","record_id":"<urn:uuid:06cabfcd-dc7f-4e8a-a7ee-9488fc070d73>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/... |
Given The Following SFG. With Input R(s) And Output ... | Chegg.com
Image text transcribed for accessibility: Given the following SFG. with input R(s) and output Y(s) and the output of the integrator indicated as x1. x2. x2 Find the transfer function Y(s)/R(s) Now
create three new directed branches fl. f2. and f3 emana... | {"url":"http://www.chegg.com/homework-help/questions-and-answers/given-following-sfg-input-r-s-output-y-s-output-integrator-indicated-x1-x2-x2-find-transfe-q1119466","timestamp":"2014-04-16T17:56:12Z","content_type":null,"content_length":"20877","record_id":"<urn:uuid:f70448b9-3c32-4b85-8a4d-88a6e24c2f53>","cc-path":"C... |
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Solve the system of equations.2x-4y+3z=-8 x+3y-2z=9 3x+2y+z=13... | {"url":"http://openstudy.com/updates/50bf9d26e4b0689d52fdca12","timestamp":"2014-04-16T10:29:11Z","content_type":null,"content_length":"32579","record_id":"<urn:uuid:bd7254e6-b1fd-4cba-bf39-c0a9380efdca>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00389-ip-10-147-4-33.ec2.internal.... |
Trying to move a Camera [Archive] - OpenGL Discussion and Help Forums
Stack Overflow
12-26-2002, 09:11 AM
I am trying to move a Camera using sine's and cosine's, but I don't know where to start. I am using glLookAt(), but how would I program the rotation to use my defined variable that contains my sine's
and cosine's.... | {"url":"http://www.opengl.org/discussion_boards/archive/index.php/t-136203.html","timestamp":"2014-04-19T17:12:13Z","content_type":null,"content_length":"5207","record_id":"<urn:uuid:84901478-5cc0-4cc4-a96c-ab374561f790>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00642-ip-10-147-4... |
Laplace Transforms to solve Initial-Value problem
I, for one, am not seeing why there has to be a $\dfrac{B}{(s+2)^{2}}$ term when there isn't one in the LT. Is there one in the LT? If so, why didn't it cancel? Here's what I have from the original
DE: $y'' + 4y' + 4y = e^{-t}(\sin(t) + \cos(t)), y(0) = 0, y'(0) = 0.$ L... | {"url":"http://mathhelpforum.com/differential-equations/165735-laplace-transforms-solve-initial-value-problem-2-print.html","timestamp":"2014-04-17T19:48:48Z","content_type":null,"content_length":"14803","record_id":"<urn:uuid:c14cb535-6451-4bcf-972c-11710e38e3c2>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/w... |
← Lecture 4 | Lecture 6 →
By Giuseppe Tenti and annotated by Douglas Wilhelm Harder.
We will now look at 2nd-order differential equations. A general 2nd-order differential equation is of the form
however, this cannot be solved in general. We will begin by looking at specific cases which have a much simpler form.
Linear... | {"url":"https://ece.uwaterloo.ca/~math211/Lectures/05/","timestamp":"2014-04-16T19:22:21Z","content_type":null,"content_length":"22363","record_id":"<urn:uuid:8dcbc7b1-5605-488d-b5c9-5d3c3775d113>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00621-ip-10-147-4-33.ec2.internal.warc.gz"... |
x : scalar or array-like of length N
Point or points at which to evaluate the derivatives
der : None or integer
How many derivatives to extract; None for all potentially nonzero derivatives (that is a number equal to the number of points). This number includes the function value as 0th derivative.
Returns :
——-... | {"url":"http://docs.scipy.org/doc/scipy-0.8.x/reference/generated/scipy.interpolate.KroghInterpolator.derivatives.html","timestamp":"2014-04-18T10:36:20Z","content_type":null,"content_length":"6007","record_id":"<urn:uuid:db8c0d9b-7071-499f-8832-c01c846e2b27>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/C... |
Physics Forums - View Single Post - Finding the (x, y, z) of a point on a sphere
thx for answering - i had long given up
Yes the sphere is centred at the origin and i know the radius.
The other thread didn't appear to apply - but i don't know enough to be sure.
I have solved the problem using coordinate geometry but w... | {"url":"http://www.physicsforums.com/showpost.php?p=3724386&postcount=3","timestamp":"2014-04-19T12:31:05Z","content_type":null,"content_length":"7380","record_id":"<urn:uuid:c12eae5e-cb94-4a21-bd00-0f9e330b56ae>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00432-ip-10-147-4-33.ec2.... |
Extra Stuff: Gambling Ramblings
I picked up a new book on my trip to Reno: Extra Stuff: Gambling Ramblings by Peter Griffin. Griffin is the author of one of my favorite books in my collection of books on gambling topics: The Theory
of Blackjack. This book includes all sorts of interesting tidbits of gambling theory.
Th... | {"url":"http://brainwagon.org/2005/07/21/extra-stuff-gambling-ramblings/","timestamp":"2014-04-19T06:54:09Z","content_type":null,"content_length":"53094","record_id":"<urn:uuid:586f1b48-04c0-431a-a765-431b7a1795c4>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00270-ip-10-147-4-33.ec... |
Author: James Lucietti
Have you ever wondered what shape a football is? No, it is not a sphere - it is far closer to something Most people think that mathematics consists of either just arithmetic, or a collectio... | {"url":"http://plus.maths.org/content/list-by-author/James%20Lucietti","timestamp":"2014-04-20T00:57:14Z","content_type":null,"content_length":"21973","record_id":"<urn:uuid:048bf9da-05a8-4249-b1ff-bd385db0b0d8>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00208-ip-10-147-4-33.ec2.in... |
History of Mathematics Course Proposal
Approved by University Studies Sub-Committee. A2C2 action pending.
University Studies Course Approval Proposal
Unity and Diversi... | {"url":"http://www.winona.edu/ifo/courseproposals/Math_and_Stats/ay2000-2001.htm/Math410.htm","timestamp":"2014-04-17T09:37:01Z","content_type":null,"content_length":"9184","record_id":"<urn:uuid:308daac8-5ff6-4c03-bf78-fa3eb28aff27>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-0065... |
Density of states of zigzag graphene nanoribbons?
Could anyone tell me how to calculate the DOS of a zigzag GNR? It seems the E(k) relation of zGNRs can not expressed in analytical solution and hence the DOS as well. Is there a way to calculate and
plot it numerically? | {"url":"http://www.physicsforums.com/showthread.php?p=3893597","timestamp":"2014-04-18T03:12:36Z","content_type":null,"content_length":"19941","record_id":"<urn:uuid:5c6187fa-5137-4404-988f-1f002b22044d>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00364-ip-10-147-4-33.ec2.internal.... |
Correspondence by electronic mail
- Information Processing Letters , 1998
"... This note answers questions on whether three identities known to hold for orthomodular lattices are true also for ortholattices. One identity is shown to fail by MACE, a program that searches
for counterexamples, an the other two are proved ... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=2970819","timestamp":"2014-04-17T14:14:15Z","content_type":null,"content_length":"12497","record_id":"<urn:uuid:64620bec-562d-4f08-8a79-67c5189f269a>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00561-ip-10-147-4-33.ec2.internal.wa... |
LGSOLV v.1.0
The main problem for programmers working witn large matrices is how to keep them in computer's memory. Being written in a disk-storage, matrix involves a lot of disk exchanges, because all
Matrix-Algorithms use it "row-by-row" and "column-by-column" at the same time. Here we're proposing an original modifi... | {"url":"http://archives.math.utk.edu/software/msdos/numerical.analysis/lgsolv/.html","timestamp":"2014-04-19T04:50:45Z","content_type":null,"content_length":"2786","record_id":"<urn:uuid:6cf15592-835b-4799-9cc5-d68ab379bd5b>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00088-ip-10-1... |
Kenilworth, IL Algebra Tutor
Find a Kenilworth, IL Algebra Tutor
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automation of repetitive tasks and thereby resulting in sharp... | {"url":"http://www.purplemath.com/Kenilworth_IL_Algebra_tutors.php","timestamp":"2014-04-17T15:39:33Z","content_type":null,"content_length":"24145","record_id":"<urn:uuid:59a13835-0c29-4213-833e-eaaf1049b4b9>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00338-ip-10-147-4-33.ec2.inte... |
Facebook Interview Question Software Engineer / Developers
• Write a program for Palindrome
Country: United States
Interview Type: Phone Interview
Comment hidden because of low score. Click to expand.
boolean isPalindrome(String s) {
if (s == null || s.length() == 0) {
return false;
for (int s = 0, e ... | {"url":"http://www.careercup.com/question?id=13270698","timestamp":"2014-04-18T00:40:48Z","content_type":null,"content_length":"68830","record_id":"<urn:uuid:87f8e7ab-9c25-4523-aff5-0554080ee2bc>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00217-ip-10-147-4-33.ec2.internal.warc.gz"... |
Integral upper limit a function
I am new to Mathematica and am having trouble performing a general multiple integral.
My issue is that the upper limit of the first of a triple integral is a function of the next integration variable.
Mathmatical 9 gives several error messages.
... | {"url":"http://community.wolfram.com/groups/-/m/t/135754?p_p_auth=7LmnUBVV","timestamp":"2014-04-16T21:51:29Z","content_type":null,"content_length":"91325","record_id":"<urn:uuid:f78f3a2b-cc45-491a-8f50-8752b0b0bc6c>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00058-ip-10-147-4-33.... |
How Did I Move?
A common problem when students learn about the slope-intercept equation y = mx + b is that they mechanically substitute for m and b without understanding their meaning. This lesson is intended to
provide students with a method for understanding that m is a rate of change and b is the value when x = 0. T... | {"url":"http://illuminations.nctm.org/Lesson.aspx?id=2800","timestamp":"2014-04-18T08:48:25Z","content_type":null,"content_length":"98420","record_id":"<urn:uuid:ea3bec09-802d-46cc-a2ee-19ccae269734>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00457-ip-10-147-4-33.ec2.internal.warc... |
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Factor completely p4 – 8p2 + 16
• one year ago
• one year ... | {"url":"http://openstudy.com/updates/50b51232e4b061f4f8ff6b4d","timestamp":"2014-04-18T08:11:00Z","content_type":null,"content_length":"30203","record_id":"<urn:uuid:2807004b-f3b3-4704-81a6-0cf5bd891ead>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00453-ip-10-147-4-33.ec2.internal.w... |
Fractional Helly for more than one piercing
up vote 7 down vote favorite
Fractional Helly Theorem says the following:
For every $0<\alpha\leq 1$ there exists $\beta = \beta(d, \alpha)$ with the following property. Let $C_1 , C_2 , ..., C_n$ be convex sets in $R^d$, $n \geq d + 1$, and at least $\alpha {n \choose
d+1}$ ... | {"url":"http://mathoverflow.net/questions/122647/fractional-helly-for-more-than-one-piercing","timestamp":"2014-04-19T15:18:32Z","content_type":null,"content_length":"46374","record_id":"<urn:uuid:6866f962-97bc-4f76-acef-7fbc4043ac34>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-0022... |
North Billerica SAT Math Tutor
Find a North Billerica SAT Math Tutor
...I will travel throughout the area to meet in your home, library, or wherever is comfortable for you.Materials Physics Research Associate, Harvard, current Geophysics postdoctoral fellow, MIT,
2010-2012 Physics PhD, Brandeis University, 2010 -In... | {"url":"http://www.purplemath.com/North_Billerica_SAT_Math_tutors.php","timestamp":"2014-04-21T11:09:04Z","content_type":null,"content_length":"24327","record_id":"<urn:uuid:d154b59c-55e4-4a95-9fb4-90829f43c725>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00599-ip-10-147-4-33.ec2.in... |
Formal methods
From Wikipedia, the free encyclopedia
In computer science, specifically software engineering and hardware engineering, formal methods are a particular kind of mathematically based techniques for the specification, development and
verification of software and hardware systems.^1 The use of formal methods ... | {"url":"http://www.territorioscuola.com/wikipedia/en.wikipedia.php?title=Formal_methods","timestamp":"2014-04-18T08:37:32Z","content_type":null,"content_length":"125874","record_id":"<urn:uuid:57efb1a6-22b8-408f-ab90-acb02a279cfc>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00082-ip... |
Results 1 - 10 of 217
, 1997
"... This paper analyses the recently suggested particle approach to filtering time series. We suggest that the algorithm is not robust to outliers for two reasons: the design of the simulators and
the use of the discrete support to represent the sequentially updating prior distribution. Bo... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1295248","timestamp":"2014-04-18T02:02:32Z","content_type":null,"content_length":"40820","record_id":"<urn:uuid:e923d494-c1b8-4f22-8047-2b2d7ece173b>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00034-ip-10-147-4-33.ec2.internal.wa... |
prime or composite
July 12th 2008, 03:08 PM #1
Jul 2008
prime or composite
hello everyone i have a math review and i want the RIGHT answers so i can check my work. And so I know that I'm doing each problem right thanks.
#1. Is the number 75 prime,composite, or neither? (i say composite?)
#2. Is the numb... | {"url":"http://mathhelpforum.com/algebra/43550-prime-composite.html","timestamp":"2014-04-16T08:15:53Z","content_type":null,"content_length":"70034","record_id":"<urn:uuid:0e28a0aa-1654-463a-acfb-63242db784a7>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00336-ip-10-147-4-33.ec2.int... |
Computing a T-transitive opening of a proximity
Garmendia, L. and Salvador , A and Montero de Juan, Francisco Javier (2008) Computing a T-transitive opening of a proximity. In Computational intelligence in decision and control : proceedings of the
8th International FLINS Conference. World Scientific, Singapore , pp. 15... | {"url":"http://eprints.ucm.es/16912/","timestamp":"2014-04-19T11:57:41Z","content_type":null,"content_length":"24539","record_id":"<urn:uuid:12cc3845-63ee-414c-9eb3-e3cd1f6056f9>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00208-ip-10-147-4-33.ec2.internal.warc.gz"} |
Locally Resonant Band Gaps in Flexural Vibrations of a Timoshenko Beam with Periodically Attached Multioscillators
Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 146975, 10 pages
Research Article
Locally Resonant Band Gaps in Flexural Vibrations of a Timoshenko Beam with Periodically Attached Multi... | {"url":"http://www.hindawi.com/journals/mpe/2013/146975/","timestamp":"2014-04-20T05:00:22Z","content_type":null,"content_length":"298582","record_id":"<urn:uuid:b11b4ac1-b653-4d26-a121-3b0de7bf96f8>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00452-ip-10-147-4-33.ec2.internal.warc... |
Existence and Uniqueness
February 11th 2011, 11:35 AM
Existence and Uniqueness
Hi everyone,
I'm having trouble with the ideas involved with the uniquesness theorem for a linear nth order IVP.
As an example:
The initial value problem
$3y'''+5y''-y'+7y=0,$$y(1)=0$, $y'(1)=0,$$y''(1)=0$.
Now, I can... | {"url":"http://mathhelpforum.com/differential-equations/170923-existence-uniqueness-print.html","timestamp":"2014-04-20T08:43:25Z","content_type":null,"content_length":"6919","record_id":"<urn:uuid:76136b91-496f-4a9c-876c-9be7db534d15>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-005... |
How to Calculate Your Mortgage Amount Based on Monthly Payments
With a little work, you can figure out how much mortgage you can afford.
If you want a mortgage loan, you'll have to prove you can pay it back. Lenders typically check your income, employment, debts and credit history--including past bankruptcies or forecl... | {"url":"http://homeguides.sfgate.com/calculate-mortgage-amount-based-monthly-payments-3139.html","timestamp":"2014-04-20T15:52:38Z","content_type":null,"content_length":"33790","record_id":"<urn:uuid:c43771c2-e3dd-4d78-a3ce-8a7ab912207a>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-... |
Common Core Standards : CCSS.Math.Content.HSF-LE.A.3
Common Core Standards: Math
3. Observe using graphs and tables that a quantity increasing exponentially eventually exceeds a quantity increasing linearly, quadratically, or (more generally) as a polynomial function.
Students should be able to prove that eventually, a... | {"url":"http://www.shmoop.com/common-core-standards/ccss-hs-f-le-3.html","timestamp":"2014-04-18T06:30:34Z","content_type":null,"content_length":"65702","record_id":"<urn:uuid:ec087788-c17f-4797-806e-cc7f710f8f28>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00517-ip-10-147-4-33.ec2... |
[Numpy-discussion] chararray behavior
Alan McIntyre alan.mcintyre@gmail....
Wed Jul 9 00:49:59 CDT 2008
On Tue, Jul 8, 2008 at 3:30 PM, Anne Archibald
<[email protected]> wrote:
> In particular, the returned type is always "string of length four",
> which is very peculiar - why four? I realize that variable-le... | {"url":"http://mail.scipy.org/pipermail/numpy-discussion/2008-July/035499.html","timestamp":"2014-04-18T11:05:39Z","content_type":null,"content_length":"3930","record_id":"<urn:uuid:47d6aa3a-949c-4c3a-95eb-b7f936679085>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00135-ip-10-147-4-... |
Prime Numbers
Date: 01/31/97 at 19:28:21
From: robby
Subject: prime numbers
What are the prime numbers and why are they prime numbers?
Date: 02/03/97 at 13:22:50
From: Doctor Reno
Subject: Re: prime numbers
Hi, Robby!
You've asked my favorite question! I love prime numbers, and spend
a lot of time with my sixth grade c... | {"url":"http://mathforum.org/library/drmath/view/57047.html","timestamp":"2014-04-21T04:55:56Z","content_type":null,"content_length":"10411","record_id":"<urn:uuid:f636ab8b-c893-463a-aad7-967b022c0cae>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00158-ip-10-147-4-33.ec2.internal.wa... |
o source time
ret quantity is evaluated at the retarded time, o = t ? r=c
High-speed impulsive (HSI) noise is a particularly intense and annoying noise generated by helicopter rotors in high-speed forward flight. This HSI noise is closely associated with the appearance of
shocks and transonic flow around the advancing ... | {"url":"http://www.nzdl.org/gsdlmod?e=d-00000-00---off-0cstr--00-0----0-10-0---0---0direct-10---4-------0-1l--11-en-50---20-help---00-0-1-00-0--4----0-0-11-10-0utfZz-8-10&a=d&cl=CL1.267&d=HASH015ec1732defcd9a98d585d3.2","timestamp":"2014-04-19T15:09:30Z","content_type":null,"content_length":"13294","record_id":"<urn:uu... |
Examples of Jensen inequalities
Next: RELATED CONCEPTS Up: THE JENSEN INEQUALITY Previous: THE JENSEN INEQUALITY
The most familiar example of a Jensen inequality occurs when the weights are all equal to 1/N and the convex function is f(x) = x^2. In this case the Jensen inequality gives the familiar result that
th... | {"url":"http://sepwww.stanford.edu/sep/prof/pvi/jen/paper_html/node3.html","timestamp":"2014-04-20T23:27:08Z","content_type":null,"content_length":"9625","record_id":"<urn:uuid:96e7ef5d-23a6-46ad-91ad-a42959a4871b>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00094-ip-10-147-4-33.ec... |
To Reproduce and angle
Given an angle with vertex at A
Step 1. Scribe an arc centered at A and intersecting the arms of the angle at B and C.
Step 2. On the other line, scribe and arc of the same radius centered at A' intersecting the line at B'
Step 3. Use the compass to measure the distance from B to C, and with the ... | {"url":"http://www.sonoma.edu/users/w/wilsonst/Courses/Math_150/c-s/Copy-Angle.html","timestamp":"2014-04-20T11:23:04Z","content_type":null,"content_length":"2112","record_id":"<urn:uuid:2deb0efc-2416-4948-8a3b-2293f1985b4b>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00310-ip-10-14... |
Mplus Discussion >> Choice of estimator
Leigh Roeger posted on Sunday, January 30, 2000 - 9:51 pm
I am working on a multigroup meanstructure analysis. There are 2 groups (boys and girls) who rated their mothers on a 25 item - 4 point (strongly agree, agree, etc) rating scale. The items are very
skewed. The scale consis... | {"url":"http://www.statmodel.com/cgi-bin/discus/discus.cgi?pg=prev&topic=23&page=56","timestamp":"2014-04-16T11:09:51Z","content_type":null,"content_length":"100056","record_id":"<urn:uuid:78901ae6-b208-419d-a932-e0dbc4aaf23e>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00285-ip-10... |
Beyond Regular Expressions: More Incremental String Matching
In my last post I showed how to incrementally match long strings against regular expressions. I now want to apply similar methods to matching languages that can't be described by regular expressions.
(Note that 'language' is just jargon for a set of strings t... | {"url":"http://blog.sigfpe.com/2009/01/beyond-regular-expressions-more.html?showComment=1233456780000","timestamp":"2014-04-20T21:17:00Z","content_type":null,"content_length":"77365","record_id":"<urn:uuid:df263fae-1e90-49c9-9acf-3bb13d46ade0>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-201404230... |
Simulation of microwave and laser structures
│ [Next]: Visualization of numerical simulations and production │ │ [Previous]: Melt-flow simulation in Czochralski growth │ [Contents] │ [Index] │
Collaborator: G. Hebermehl, F.-K. Hübner, R. Schlundt
Cooperation with: W. Heinrich, T. Tischler, H. Zscheile (Ferdinand-... | {"url":"http://www.wias-berlin.de/annual_report/2003/node51.html","timestamp":"2014-04-17T18:37:46Z","content_type":null,"content_length":"24173","record_id":"<urn:uuid:a70517f1-70fa-4f8f-ab9c-19ea34b858a1>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00243-ip-10-147-4-33.ec2.intern... |
Integration Help
July 24th 2007, 08:31 PM #1
Mar 2007
Integration Help
Can we arrive at a closed form solution to the following integral?
limits of integration are from 0 to 1 and 'a' is a constant.
Phi(x) is a function of x and is equal to 6*x^2-4*x^3+x^4.
Thanks in anticipation.
I suspect that... | {"url":"http://mathhelpforum.com/calculus/17187-integration-help.html","timestamp":"2014-04-19T20:02:13Z","content_type":null,"content_length":"33048","record_id":"<urn:uuid:fefbe39f-5295-4952-8cd4-ed4fc0082ebd>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00332-ip-10-147-4-33.ec2.i... |
Enriched categories, internal categories and change of base
Results 1 - 10 of 15
, 1998
"... We introduce a notion of equipment which generalizes the earlier notion of pro-arrow equipment and includes such familiar constructs as relK, spnK, parK, and proK for a suitable category K,
along with related constructs such as... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=3221732","timestamp":"2014-04-17T05:00:33Z","content_type":null,"content_length":"35068","record_id":"<urn:uuid:b246ba52-655b-4a6c-9741-7dcadbd2d83e>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00473-ip-10-147-4-33.ec2.internal.wa... |
The Shape of Content. Creative Writing in Mathematics and Science
This remarkable book collects some interesting creative writing of 21 authors (young poets, writers, artists, mathematicians, geologists and philosophers). At the end, the editors add short
biographical notes of the contributors. The contributions are in... | {"url":"http://www.euro-math-soc.eu/node/1162","timestamp":"2014-04-21T12:26:22Z","content_type":null,"content_length":"12422","record_id":"<urn:uuid:35ed4ac0-6b8d-4048-a9a4-833138044de7>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00446-ip-10-147-4-33.ec2.internal.warc.gz"} |
algebra - scientific group videos
Algebra movies. Algebra is a branch of mathematics concerning the study of structure, relation, and quantity. Together with geometry, analysis, combinatorics, and number theory, algebra is one of...
Tags: Algebra
Type: public
Your Status:You are not the member of this group. Created By... | {"url":"http://www.dnatube.com/group/algebra","timestamp":"2014-04-18T18:14:22Z","content_type":null,"content_length":"31174","record_id":"<urn:uuid:c12352f5-d8f6-404b-807f-40c3b8b7c316>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00151-ip-10-147-4-33.ec2.internal.warc.gz"} |
s of
EPSRC Reference: EP/J00829X/1
Title: Perron-Frobenius theory and max-algebraic combinatorics of nonnegative matrices
Principal Investigator: ... | {"url":"http://gow.epsrc.ac.uk/NGBOViewGrant.aspx?GrantRef=EP/J00829X/1","timestamp":"2014-04-20T04:05:15Z","content_type":null,"content_length":"40804","record_id":"<urn:uuid:4a9fde0a-7b46-4837-896a-ca3b86019c89>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00137-ip-10-147-4-33.ec2... |
Memorandum from R. L. Murray and A. C. Menius, Jr. to C. K. Beck and Reactor Committee, with Appendix[a machine-readable transcription]Memorandum from R. L. Murray and A. C. Menius, Jr. to C. K. Beck and Reactor Committee, with AppendixLibrary of Congress Subject Headings
%MurNBrodpower041651; %MurNBrodpower041651forms... | {"url":"http://www.lib.ncsu.edu/specialcollections/digital/text/engineering/reactor/murray/MurNBrodpower041651.xml","timestamp":"2014-04-24T15:11:14Z","content_type":null,"content_length":"21882","record_id":"<urn:uuid:fd569c0c-0eb0-4ee2-8edb-8deec983f8de>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MA... |
Simple Harmonic Motion in a Spring-Mass System
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Many things in nature are periodic: the seasons of the year, the phases of the moon, th... | {"url":"http://www.sciencebuddies.org/science-fair-projects/project_ideas/Phys_p064.shtml","timestamp":"2014-04-18T23:21:03Z","content_type":null,"content_length":"43881","record_id":"<urn:uuid:64424d95-f26c-46b9-b30c-a907b82a3b45>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00076-... |
How to Calculate an Object’s Velocity Based on Its Displacement
How to Calculate an Object’s Velocity Based on Its Displacement
In physics, velocity, which is the rate of change of position (or speed in a particular direction), is a vector. Imagine that you just hit a ground ball on the baseball diamond and you’re run... | {"url":"http://www.dummies.com/how-to/content/how-to-calculate-an-objects-velocity-based-on-its-.html","timestamp":"2014-04-24T14:16:59Z","content_type":null,"content_length":"54171","record_id":"<urn:uuid:a60af05d-467a-44e5-93be-8dc69087134c>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-2014042303... |
Somerset, MA Algebra Tutor
Find a Somerset, MA Algebra Tutor
...Since then, I have always been a math tutor. In a way, being a math tutor came naturally to me. What most of my clients say they like most about having me as a tutor is how I help them find
their own sense of style when it comes to problem solving skil... | {"url":"http://www.purplemath.com/somerset_ma_algebra_tutors.php","timestamp":"2014-04-18T11:46:52Z","content_type":null,"content_length":"24001","record_id":"<urn:uuid:1dd81b5a-2258-48ab-b21d-5c94c2648c3d>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00134-ip-10-147-4-33.ec2.intern... |
From OeisWiki
About this page
• This is part of the series of OEIS Wiki pages that list works citing the OEIS.
• Additions to these pages are welcomed.
• But if you add anything to these pages, please be very careful — remember that this is a scientific database. Spell authors' names, titles of papers, journal na... | {"url":"http://oeis.org/wiki/CiteI","timestamp":"2014-04-17T11:20:12Z","content_type":null,"content_length":"31789","record_id":"<urn:uuid:7c7aa76b-88c1-41b8-b35e-2d431d90790f>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00547-ip-10-147-4-33.ec2.internal.warc.gz"} |
February 23rd 2010, 12:06 AM
How exactly would I do this?
The normal to the ellipse x^2/a^2 + y^2/b^2 = 1 at P(x1, y1) meets the x-axis in N and the Y-axis in G. Prove PN/NG = (1-e^2)/e^2
February 23rd 2010, 12:20 AM
See this thread for some general comments about ellipses that should help with this problem... | {"url":"http://mathhelpforum.com/geometry/130271-ellipse-print.html","timestamp":"2014-04-17T08:16:03Z","content_type":null,"content_length":"7701","record_id":"<urn:uuid:b2296ccb-c336-42fa-b2f9-7b0d749e687d>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00634-ip-10-147-4-33.ec2.inte... |
Math Forum Discussions - Re: Matheology § 285
Date: Jun 11, 2013 1:18 PM
Author: LudovicoVan
Subject: Re: Matheology § 285
<[email protected]> wrote in message
> Matheology § 285
> In this article, I argue that it is impossible to complete infinitely many
> tasks in a finite time. A key premise in my argument ... | {"url":"http://mathforum.org/kb/plaintext.jspa?messageID=9133176","timestamp":"2014-04-16T09:04:03Z","content_type":null,"content_length":"2848","record_id":"<urn:uuid:ba337df4-756e-4972-8aa3-543d2637efae>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00198-ip-10-147-4-33.ec2.interna... |
Z94.2 - Anthropometry & Biomechanics: Anthropometry Section
Intro to Anthropometry | Dynamic/Functional Dimension Terms | Static Dimension Terms | Reference Plates | Glossary
Cross Reference List | Primary Bibliog... | {"url":"http://www.iienet.org/PrinterFriendly.aspx?id=2622","timestamp":"2014-04-20T22:06:03Z","content_type":null,"content_length":"4593","record_id":"<urn:uuid:311a862b-f393-46ff-aa26-c2c1c5cd095c>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00275-ip-10-147-4-33.ec2.internal.warc... |
How many tacks fit in the plane?
MathOverflow is a question and answer site for professional mathematicians. It's 100% free, no registration required.
Call a tack the one point union of three open intervals. Can you fit an uncountable number of them on the plane? Or is only a countable numb... | {"url":"http://mathoverflow.net/questions/27244/how-many-tacks-fit-in-the-plane/27246","timestamp":"2014-04-21T15:54:01Z","content_type":null,"content_length":"61859","record_id":"<urn:uuid:bbe3ffdf-a9af-490f-b5c3-cb511736c9ca>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00131-ip-1... |
Why Engineering Mathematics is not a "service" subject
We all have sensitive points !
I find that discussion of the 1976 Olympic Men's Hockey final distressing (Yes, Australia lost to New Zealand but please don't talk about it). A statistical analysis of the Bulldogs performance in
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What’s special with commutators in the Weyl group of C5?
I have just added to my notes on representation theory the very cute formula of Frobenius that gives, in terms of irreducible characters, the number $N(g)$ of representations of a given element $g$
as a commutator $g=[x,y]=xyx^{-1}y^{-1}$ in a finite group $G$:
w... | {"url":"http://blogs.ethz.ch/kowalski/2011/08/30/whats-special-with-commutators-in-the-weyl-group-of-c5/","timestamp":"2014-04-20T15:51:39Z","content_type":null,"content_length":"38073","record_id":"<urn:uuid:b948791c-4231-42d9-954b-8dbdaed99d66>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-201404... |
Solution to puzzle 76: Square inscribed in a triangle
A triangle has sides 10, 17, and 21. A square is inscribed in the triangle. One side of the square lies on the longest side of the triangle. The other two vertices of the square touch the two
shorter sides of the triangle. What is the length of the side of the squa... | {"url":"http://www.qbyte.org/puzzles/p076s.html","timestamp":"2014-04-18T05:34:48Z","content_type":null,"content_length":"6431","record_id":"<urn:uuid:5023c7f2-5508-4416-a2b4-84174449f379>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00087-ip-10-147-4-33.ec2.internal.warc.gz"} |
polarization formula for homogeneous polynomials
up vote 5 down vote favorite
given a homogeneous polynomial p of dgree n on $R^d$, there is a unique symmetric n-linear functional $B$ on $(R^d)^n$ such that $p(x)=B(x,..,x)$. The question is: Can we get $B$ by means of a
polarization formula as in the case $n=2$ for qua... | {"url":"http://mathoverflow.net/questions/61884/polarization-formula-for-homogeneous-polynomials?sort=oldest","timestamp":"2014-04-25T02:14:42Z","content_type":null,"content_length":"51829","record_id":"<urn:uuid:e2a3e013-c968-4b6b-b7d1-baee071a4999>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20... |
Solving nonconvex planar location problems by finite dominating sets
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guaranteed to contain at least one optimal location. In t... | {"url":"https://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/973","timestamp":"2014-04-16T05:11:20Z","content_type":null,"content_length":"21422","record_id":"<urn:uuid:5baee68d-e7ac-438f-a70b-53ef4606d6e0>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00498-ip-10-147-4-33.ec2.int... |
Venetian Islands, FL Math Tutor
Find a Venetian Islands, FL Math Tutor
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Flower Mound Algebra 1 Tutor
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Type IIA D-Branes, K-Theory and Matrix Theory
Hořava, Petr (1998) Type IIA D-Branes, K-Theory and Matrix Theory. Advances in Theoretical and Mathematical Physics, 2 (6). pp. 1373-1404. ISSN 1095-0761. http://resolver.caltech.edu/
PDF - Published Version
See Usage Policy.
Use this Persistent URL to link to this item... | {"url":"http://authors.library.caltech.edu/28806/","timestamp":"2014-04-18T10:37:29Z","content_type":null,"content_length":"27033","record_id":"<urn:uuid:cc5541df-1dc3-4881-b104-4cd9326219c1>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00620-ip-10-147-4-33.ec2.internal.warc.gz"} |
Implementation of the Natural Element Method (NEM)
Next: A Study in Contrast: Up: A Note on Natural Previous: Governing Equations and Weak
The implementation of the Natural Element Method (NEM) by means of a Galerkin-based procedure is parallel to that adopted in FEM or Element-Free Galerkin (EFG) method [14], with... | {"url":"http://dilbert.engr.ucdavis.edu/~suku/nem/nem_intro/node5.html","timestamp":"2014-04-20T03:54:01Z","content_type":null,"content_length":"5471","record_id":"<urn:uuid:0cb21311-fa29-4fa8-a5e0-05eb541f3fd6>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00497-ip-10-147-4-33.ec2.i... |
[FOM] FW: Schroeder-Bernstein Dual
Epstein, Adam A.L.Epstein at warwick.ac.uk
Thu Jun 21 20:03:28 EDT 2007
On Tue, 29 May 2007, Bill Taylor wrote:
>Consider this "dual" to Shroeder-Bernstein:
>** If there are surjections f: X --> Y
>** and g: Y --> X
>** then there is a bijection between... | {"url":"http://www.cs.nyu.edu/pipermail/fom/2007-June/011679.html","timestamp":"2014-04-16T22:10:22Z","content_type":null,"content_length":"3921","record_id":"<urn:uuid:77a6e6c1-dfe3-4cd2-b1e9-a318e5d03c2e>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00410-ip-10-147-4-33.ec2.interna... |
7th International Conference on Multiphase Flow
ICMF 2010, Tampa, FL USA, May 30-June 4, 2010
Numerical study on the motion characteristics of a freely falling two-dimensional circular
cylinder in a channel
Sung Wan Son1, Hea Kwon Jeong2, Hyun SikYoon3 and Man Yeong Ha*1
School of mechanical engineering, Pusan Nation U... | {"url":"http://ufdc.ufl.edu/UF00102023/00249","timestamp":"2014-04-17T16:29:27Z","content_type":null,"content_length":"70558","record_id":"<urn:uuid:5291803c-bf1f-473e-880e-174f5162c400>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00528-ip-10-147-4-33.ec2.internal.warc.gz"} |
Engineering Electromagnetic
Resources Awards & Gifts
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The Stages of Samadhi
Samsara is a bad dream, a nightmare, a painful illusion. The purpose of our practice is to awaken from that bad dream, as Shakyamuni did, and as many others have since. The mechanism of that
awakening has been analyzed for two and a half millenia. There are many accounts, although I think there is... | {"url":"http://lodrochodrak.com/samadhi.html","timestamp":"2014-04-17T12:30:07Z","content_type":null,"content_length":"20567","record_id":"<urn:uuid:7dbaf73d-f0a1-4bf4-a909-60637fc9cfce>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00349-ip-10-147-4-33.ec2.internal.warc.gz"} |
Solomon Lefschetz
Solomon Lefschetz (1884-1972) did pioneering work in algebraic geometry, algebraic topology, and differential equations, and exerted tremendous influence over American mathematics as a professor at
Princeton University and the editor of the journal Annals of Mathematics.
Lefschetz was born in Moscow i... | {"url":"http://www.usna.edu/Users/math/meh/lefschetz.html","timestamp":"2014-04-17T18:25:50Z","content_type":null,"content_length":"5005","record_id":"<urn:uuid:b99bb405-41ef-4801-b216-957571807d86>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00530-ip-10-147-4-33.ec2.internal.warc.... |
Definite Integration
January 24th 2010, 05:10 AM #1
Jun 2007
Definite Integration
find the total area between the region and the the x-axis.
y = -x^2 - 2x when -3 <= x <= 2 (which i took it as [-3,2])
This was my work:
I integrated the equation:
-(1/3)x^3 - x^2 [-3,2]
I plugged in the number... | {"url":"http://mathhelpforum.com/calculus/125141-definite-integration.html","timestamp":"2014-04-20T09:37:08Z","content_type":null,"content_length":"34514","record_id":"<urn:uuid:c8efa0b4-ad2e-4e38-921a-6ae659494d98>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00391-ip-10-147-4-33.... |
Cardiff By The Sea Geometry Tutor
Find a Cardiff By The Sea Geometry Tutor
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Maths problems!
May 16th 2005, 07:08 AM #1
May 2005
Maths problems!
Please can anyone help me, i am trying to finish a maths paper for work and i am struggling! I need to know the following: A square wave has a period of 0.4 second. What gives the frequency in
hertz (Hz) of the fundamental component of the ... | {"url":"http://mathhelpforum.com/calculus/248-maths-problems.html","timestamp":"2014-04-18T12:28:40Z","content_type":null,"content_length":"37539","record_id":"<urn:uuid:2102eb7c-3c54-4bfe-9af0-16877b3af67e>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00316-ip-10-147-4-33.ec2.inter... |
A Speedboat Starts From Rest And Accelerates At ... | Chegg.com
A speedboat starts from rest and accelerates at +2.01 m/s2 for 6.60 s. At the end of this time, the boat continues for an additional 5.50 s with an acceleration of +0.518 m/s2. Following this, the
boat accelerates at -1.49 m/s2 for 8.60 s.
(a) What is the ... | {"url":"http://www.chegg.com/homework-help/questions-and-answers/speedboat-starts-rest-accelerates-201-m-s2-660-s-end-time-boat-continues-additional-550-s--q1994775","timestamp":"2014-04-19T05:02:13Z","content_type":null,"content_length":"19903","record_id":"<urn:uuid:98c51560-94e0-434c-9da1-81268a5f6b91>","cc-path":"C... |
Pushout stability of embeddings, injectivity and categories of algebras
Topology Atlas Document # ppae-27
Pushout stability of embeddings, injectivity and categories of algebras
Lurdes Sousa
Proceedings of the Ninth Prague Topological Symposium (2001) pp. 295-308
In several familiar subcategories of the category T of t... | {"url":"http://www.emis.de/proceedings/TopoSym2001/27.htm","timestamp":"2014-04-16T16:05:28Z","content_type":null,"content_length":"3267","record_id":"<urn:uuid:667ce513-0398-4ccf-bcf6-edcffc48ebdf>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00029-ip-10-147-4-33.ec2.internal.warc.... |
Pricing Handmade Items - Formula
Pricing Handmade Items – Formula
Subscribe or ‘follow’ Epheriell Designs during July 09 and go in the draw to win a $40 gift voucher to use in my shop – Epheriell. Details here.
During this slow sales period for me, I’ve been seriously thinking about how to set this hobby of mine up pro... | {"url":"http://epherielldesigns.com/pricing-handmade-items-formula","timestamp":"2014-04-17T00:49:25Z","content_type":null,"content_length":"52543","record_id":"<urn:uuid:5684c2a3-7ed6-42ad-9447-fb5414f45a97>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00459-ip-10-147-4-33.ec2.inte... |
Proof of square root being irrational
September 14th 2007, 10:58 AM
Proof of square root being irrational
Let N be a Natural Number such that square root of N is not an integer. Prove that then square root of N is even irrational.
*The problem gives you a hint stating that:
Assume square root of N is in the... | {"url":"http://mathhelpforum.com/calculus/18966-proof-square-root-being-irrational-print.html","timestamp":"2014-04-20T22:11:24Z","content_type":null,"content_length":"5923","record_id":"<urn:uuid:25a8392d-f359-44af-8579-9c76a3d273e2>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-002... |
Short Introduction to Octave
Octave is a high-level computer language that makes computing easy if your priority is not speed. It is, to a large extent, the open-source version of Matlab and one which I find very useful
especially from a pedagogical point of view. For a programmer writing scientific code, Octave provid... | {"url":"http://www.physics.metu.edu.tr/~hande/octave.html","timestamp":"2014-04-21T14:39:54Z","content_type":null,"content_length":"7532","record_id":"<urn:uuid:d7fe9233-c33f-4288-be62-18159522bf26>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00581-ip-10-147-4-33.ec2.internal.warc.... |
Snake movement (smooth, not a grid) - Java-Gaming.org
I'm trying to make some sort of a snake game, but I'm having trouble with the movement. I refuse to go the "make the snake move along a grid, placing each part of the snake to the cell the previous
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Stochastic Model
A Stochastic Model
of the Long-Range Financial Status
of the OASDI Program September 2004
The real average covered wage is defined as the ratio of the average nominal OASDI covered wage to the adjusted inflation rate. Because of the expansion of covered e... | {"url":"http://www.ssa.gov/OACT/NOTES/as117/LR_Stochastic_IIE.html","timestamp":"2014-04-21T12:28:31Z","content_type":null,"content_length":"8629","record_id":"<urn:uuid:0df57bae-1358-4475-bcbc-bf780bbeae9b>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00535-ip-10-147-4-33.ec2.inter... |
Spacetime and Geometry:
The internet has a wide array of resources to learn general relativity and keep up with recent research. This page only attempts to hit some of the highlights, not to be comprehensive. See Relativity
on the World Wide Web or some of the other web guides below for further links.
This page is stil... | {"url":"http://www.preposterousuniverse.com/spacetimeandgeometry/resources.html","timestamp":"2014-04-18T10:35:42Z","content_type":null,"content_length":"10592","record_id":"<urn:uuid:58225cc6-00c1-4d86-9a33-5c76cb204322>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00347-ip-10-147-... |