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The slope of a line is -2. What is the slope of a line that is... | {"url":"http://openstudy.com/updates/507880f7e4b0ed1dac50f740","timestamp":"2014-04-20T23:46:46Z","content_type":null,"content_length":"46435","record_id":"<urn:uuid:8dd901d8-d268-4cae-82d3-572142c1b220>","cc-path":"CC-MAIN-2014-15/segments/1397609539337.22/warc/CC-MAIN-20140416005219-00313-ip-10-147-4-33.ec2.internal.... |
Number 7250081
Number 7250081 in British English words is seven million two hundred fifty thousand eighty-one. Number consists of
digits, seven-digit.
Number 7250081 in American English words is seven million two hundred fifty thousand eighty-one, in German words is sieben Millionen zweihundertfünfzigtausendeinundacht... | {"url":"http://www.all-numbers.com/7250081","timestamp":"2014-04-21T02:00:21Z","content_type":null,"content_length":"9508","record_id":"<urn:uuid:f61ecc67-86ad-430c-afb2-b8043238c328>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00429-ip-10-147-4-33.ec2.internal.warc.gz"} |
the first resource for mathematics
Chebyshev finite difference approximation for the boundary value problems.
(English) Zbl 1027.65098
Summary: This paper presents a numerical technique for solving linear and non-linear boundary value problems for ordinary differential equations. This technique is based on using matrix... | {"url":"http://zbmath.org/?q=an:1027.65098","timestamp":"2014-04-20T23:42:47Z","content_type":null,"content_length":"21526","record_id":"<urn:uuid:ec6160ea-b5f4-41ad-9e80-fc10503fe79d>","cc-path":"CC-MAIN-2014-15/segments/1397609539337.22/warc/CC-MAIN-20140416005219-00120-ip-10-147-4-33.ec2.internal.warc.gz"} |
Slice of Pi, Anyone? - About Pi Day and the Transcendental Number Pi
Slice of Pi, Anyone?
About Pi Day and the Transcendental Number Pi
By: John Shepler
"For a time I stood pondering on circle sizes. The large computer mainframe quietly processed all of its assembly code. Inside my entire hope lay for figuring out an e... | {"url":"http://www.johnshepler.com/articles/piday.html","timestamp":"2014-04-19T01:49:50Z","content_type":null,"content_length":"17597","record_id":"<urn:uuid:356864c4-321d-4829-b29d-9add7fbd549e>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00018-ip-10-147-4-33.ec2.internal.warc.gz... |
Quincy, MA Precalculus Tutor
Find a Quincy, MA Precalculus Tutor
...I also took 3D calculus at MIT. While tutoring in my junior and senior year of college, I tutored freshman in calculus. I took geometry in high school.
10 Subjects: including precalculus, physics, calculus, algebra 2
...I am a trained lawyer an... | {"url":"http://www.purplemath.com/Quincy_MA_precalculus_tutors.php","timestamp":"2014-04-19T15:22:43Z","content_type":null,"content_length":"23836","record_id":"<urn:uuid:05f5290e-1ab0-45e9-a864-d0a2466e6f60>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00164-ip-10-147-4-33.ec2.inter... |
cube root 560
Say hello to Evi
Evi is our best selling mobile app that can answer questions about local knowledge, weather, books, music, films, people and places, recipe ideas, shopping and much more. Over the next few months we
will be adding all of Evi's power to this site.
Until then, to experience all of the power... | {"url":"http://www.evi.com/q/cube_root_560","timestamp":"2014-04-18T03:56:52Z","content_type":null,"content_length":"48172","record_id":"<urn:uuid:c987a847-8880-4213-939b-f6ec2d1380be>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00658-ip-10-147-4-33.ec2.internal.warc.gz"} |
• Use "?" for one missing letter: pu?zle. Use "*" for any number of letters: p*zle. Or combine: cros?w*d
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equivalence's examples
• Being representable by one number such as we see on clocks is a binary relation on the set of natural numb... | {"url":"http://wordsdomination.com/equivalence.html","timestamp":"2014-04-20T13:21:18Z","content_type":null,"content_length":"67795","record_id":"<urn:uuid:94045de3-5e0a-4c8c-bbe2-f745bb0087c9>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00627-ip-10-147-4-33.ec2.internal.warc.gz"} |
[Axiom-developer] how to expand trig functions ?
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[Axiom-developer] how to expand trig functions ?
From: Francois Maltey
Subject:... | {"url":"http://lists.gnu.org/archive/html/axiom-developer/2005-06/msg00059.html","timestamp":"2014-04-17T16:18:29Z","content_type":null,"content_length":"5805","record_id":"<urn:uuid:f94fc872-6a36-452b-9984-376a4b556741>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00251-ip-10-147-4-... |
Summary: LEFSCHETZ DECOMPOSITIONS FOR QUOTIENT VARIETIES
Abstract. In an earlier paper, the authors constructed an explicit Chow Kunneth decomposition for quotient
varieties of Abelian varieties by actions of finite groups. In the present paper, the authors extend the techniques
there to obtain an explicit Lefschetz de... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/1021/3779499.html","timestamp":"2014-04-17T13:03:17Z","content_type":null,"content_length":"8959","record_id":"<urn:uuid:0b52cee3-ffdf-4ca8-b33a-a972a28d5a83>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00221-ip-10-147... |
Code Algebra
From OnceAndOnlyOnce: This appears to me to be a parameterized/paraphrased discussion from the RefactoringBrowserThesis?. The RefactoringBrowser and thesis use FirstOrderPredicateLogic? to prove
various facts about refactorings. --ShaeErisson
I think
, GroupTheory
may be together useful backgrounds for bui... | {"url":"http://c2.com/cgi/wiki?CodeAlgebra","timestamp":"2014-04-17T04:55:37Z","content_type":null,"content_length":"2372","record_id":"<urn:uuid:508cbde1-4252-4bb7-81bd-3ece030a85de>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00434-ip-10-147-4-33.ec2.internal.warc.gz"} |
implement random selection in Python
Bruza benruza at gmail.com
Sat Nov 17 01:47:16 CET 2007
On Nov 16, 6:58 am, duncan smith <buzz... at urubu.freeserve.co.uk>
> Bruza wrote:
> > I need to implement a "random selection" algorithm which takes a list
> > of [(obj, prob),...] as input. Each of the (obj, prob) represents ... | {"url":"https://mail.python.org/pipermail/python-list/2007-November/429760.html","timestamp":"2014-04-21T04:59:01Z","content_type":null,"content_length":"5491","record_id":"<urn:uuid:db862c94-1f72-480c-8cce-61ea1283b3fa>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00076-ip-10-147-4... |
Talk:263: Certainty
Explain xkcd: It's 'cause you're dumb.
This was done 6 years later by Fox News. 72.70.180.234 10:44, 31 May 2013 (UTC)
It's easy to politicize that. Abelians versus non-Abelians ;) Not all vector spaces will likely share the property seen there.67.204.136.58 23:34, 15 August 2013 (UTC)
If you flip a... | {"url":"http://www.explainxkcd.com/wiki/index.php/Talk:263:_Certainty","timestamp":"2014-04-19T05:23:05Z","content_type":null,"content_length":"24017","record_id":"<urn:uuid:2fc5ad3e-5173-4ac5-bff0-8a3ca1b9ce5a>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00064-ip-10-147-4-33.ec2.i... |
Formulating Differential equations for RLC circuit with switches.
April 28th 2012, 02:16 AM #1
Junior Member
Oct 2007
Formulating Differential equations for RLC circuit with switches.
For Question 2 (attached) I am trying to figure out how to go about answering part a, but I am not confident with the physics so... | {"url":"http://mathhelpforum.com/advanced-applied-math/198039-formulating-differential-equations-rlc-circuit-switches.html","timestamp":"2014-04-17T14:58:44Z","content_type":null,"content_length":"46127","record_id":"<urn:uuid:d35cd2db-8a79-4910-b565-2351025d7181>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/w... |
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how do you Find the slope of a line that passes through (–2, –... | {"url":"http://openstudy.com/updates/50994c31e4b085b3a90da2ae","timestamp":"2014-04-20T08:24:39Z","content_type":null,"content_length":"34727","record_id":"<urn:uuid:157bfbf4-3eee-4233-a90a-58bd7feef0f2>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00207-ip-10-147-4-33.ec2.internal.w... |
The gimbal lock shows up in my quaternions
up vote 8 down vote favorite
I suspect this is a bit basic for mathoverflow, seeing I'm still just an undergraduate
I've been playing around with quaternions as means to eliminate the gimbal lock. From what I understand, one place the gimbal lock occurs is when you rotate $\fr... | {"url":"http://mathoverflow.net/questions/95902/the-gimbal-lock-shows-up-in-my-quaternions?sort=oldest","timestamp":"2014-04-19T02:38:29Z","content_type":null,"content_length":"54872","record_id":"<urn:uuid:752c1689-0a7a-46f9-90ae-88f9fedb2db6>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423... |
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Topic: algebraic varieties
Replies: 2 Last Post: Mar 25, 2011 9:51 PM
Messages: [ Previous | Next ]
al... | {"url":"http://mathforum.org/kb/thread.jspa?threadID=2248073","timestamp":"2014-04-18T15:39:03Z","content_type":null,"content_length":"18767","record_id":"<urn:uuid:f05b5011-2114-4ede-8ee6-4f96198ad557>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00208-ip-10-147-4-33.ec2.internal.w... |
Calculate Seconds that are over 60 minutes, to Days, Hours, Minutes, Seconds
I have an issue with calculating seconds that go over 60 minutes that sums to be a few days.
One of my eval calculations sums to be 496089.166322 seconds and if I use |fieldformat "Total Time"=strftime('Total Time', "%M:%S") I get 48:09 as t... | {"url":"http://answers.splunk.com/answers/75534/calculate-seconds-that-are-over-60-minutes-to-days-hours-minutes-seconds","timestamp":"2014-04-16T04:21:06Z","content_type":null,"content_length":"46060","record_id":"<urn:uuid:54cb967b-712f-49b3-8bd2-d3cb940bce6e>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/war... |
A Lack of Relevancy
A LACK OF RELEVANCE
As a college student I always disliked the quantitative courses like statistics, calculus, management science, and operations management. Unless one is a math or science major, there is very... | {"url":"http://www.tcnj.edu/~hofmann/Relevancy.htm","timestamp":"2014-04-21T14:40:13Z","content_type":null,"content_length":"6900","record_id":"<urn:uuid:bd78db84-c888-4a7b-b8d0-86a9158246de>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00122-ip-10-147-4-33.ec2.internal.warc.gz"} |
Why Can't Math Teaching Be More Like Computer Science?
From elementary to high school I've had teachers who've droned on and on trying to explain minute details about the concepts they're teaching. I've almost always found it more difficult to follow the
teacher's train of thought than to just learn the concept myself,... | {"url":"http://www.physicsforums.com/showthread.php?p=3572239","timestamp":"2014-04-20T03:21:59Z","content_type":null,"content_length":"91352","record_id":"<urn:uuid:bc003d00-5f00-4b46-816b-78a3d58f02e6>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00531-ip-10-147-4-33.ec2.internal.... |
HELP!! differential equation and bessels function
June 11th 2008, 07:54 AM
HELP!! differential equation and bessels function
I'm studying for my final exam at the moment and i found this question from the past exam paper. but i have no idea how to solve it.
can anyone please please help me!!!
June 11th 2008, 08... | {"url":"http://mathhelpforum.com/differential-equations/41300-help-differential-equation-bessels-function-print.html","timestamp":"2014-04-17T23:12:47Z","content_type":null,"content_length":"10547","record_id":"<urn:uuid:d8cf71cb-5c79-4c1b-911e-1e05eaa3bedb>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC... |
How Tall Will Your Baby Be?
I plugged Caleb's numbers into three different height predictors online, and got 5'7", 5'11", and 5'10". 5'7" seems much more likely, given that we're short people (I'm 5'3" and my husband is 5'6").
Doubling his height at 2 years gave me 5'8", and given that the first predictor said there's ... | {"url":"http://www.whattoexpect.com/forums/august-2009-babies/archives/how-tall-will-your-baby-be.html","timestamp":"2014-04-18T09:51:42Z","content_type":null,"content_length":"128561","record_id":"<urn:uuid:edfdd22f-f046-48dd-8ef6-36090c6ffefc>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-2014041... |
Scientific Notation - Problem 1
To change a number from standard notation to scientific notation, move the decimal so that all the 0s are to the right of the decimal. Another way to think about it is to move the decimal so that
there is only one non-zero digit to the left of the decimal. Count the number of places that... | {"url":"https://www.brightstorm.com/math/algebra/exponents/scientific-notation-problem-1/","timestamp":"2014-04-18T03:21:31Z","content_type":null,"content_length":"55089","record_id":"<urn:uuid:50ddcec1-3fb3-4821-930b-a806ac0ff539>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00000-... |
[FOM] The boundary of objective mathematics
Paul Budnik paul at mtnmath.com
Sat Mar 14 12:19:01 EDT 2009
Timothy Y. Chow wrote:
> I'm curious about this "increasing scepticism" that you speak of. Do you
> have any statistical evidence of increasing scepticism? Or it is just a
> rhetorical flourish?
Its an impressio... | {"url":"http://www.cs.nyu.edu/pipermail/fom/2009-March/013480.html","timestamp":"2014-04-16T06:02:40Z","content_type":null,"content_length":"3999","record_id":"<urn:uuid:e52bcbaf-5448-44f6-9b21-9883bf381756>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00431-ip-10-147-4-33.ec2.intern... |
HELP with Kirchhof's law equation
March 4th 2013, 06:23 AM
HELP with Kirchhof's law equation
Using Kirchhoff’s Laws calculate the following:
a) The three branch currents I[1], I[2], and I[L]
b) The power dissipated in the load resistor
Attachment 27353
R1 = 12
R2 = 14
RL = 7
Explain how ... | {"url":"http://mathhelpforum.com/differential-equations/214194-help-kirchhofs-law-equation-print.html","timestamp":"2014-04-20T19:57:02Z","content_type":null,"content_length":"4975","record_id":"<urn:uuid:208bc4f6-18a5-4f8c-90ca-4d4f79a49547>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-2014041600... |
Homework Help
physics - tchrwill, Monday, March 21, 2011 at 2:50pm
The Law of Universal Gravitation states that each particle of matter attracts every other particle of matter with a force which is directly proportional to the product of their masses and inversely
proportional to the square of the distance between them... | {"url":"http://www.jiskha.com/display.cgi?id=1300673946","timestamp":"2014-04-18T22:30:41Z","content_type":null,"content_length":"11543","record_id":"<urn:uuid:4e3ca65f-fa38-4fd9-bb1c-544a9368cef8>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00315-ip-10-147-4-33.ec2.internal.warc.gz... |
Saber-Slant #5: Everything Regresses
You often hear a lot about Spring Training and early season performances, and people often wonder aloud if these performances are “fact or fiction.” Baseball has a (sometimes excruciatingly) long
season, and pundits some talking points during April when the races don’t yet matter. A... | {"url":"http://calltothepen.com/2010/05/01/saber-slant-5-everything-regresses/","timestamp":"2014-04-19T04:50:32Z","content_type":null,"content_length":"72168","record_id":"<urn:uuid:90279e00-8059-4c40-801c-70ef57939bba>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00077-ip-10-147-4-... |
The sweet program
October 7th, 2011, 02:03 AM #1
Junior Member
Join Date
Oct 2011
The sweet program
im new to programming!
my problem:
n children numbered 1 to n are sitting in a circle. starting at child 1, a sweet is passed. after m passes the child holding the sweet is eliminated. if child x gets eli... | {"url":"http://forums.codeguru.com/showthread.php?517046-The-sweet-program&p=2037048","timestamp":"2014-04-21T16:19:07Z","content_type":null,"content_length":"84463","record_id":"<urn:uuid:7623025d-dc10-466d-b347-29cf93c769ab>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00615-ip-10... |
Kernel and Image
January 31st 2007, 07:13 PM #1
Nov 2006
Kernel and Image
Let V be the R-space of real polynomials of degree at most 3.
For p(X) in V, define
I need to find a basis for each of the kernel ker(T) of T, and the image (or range) Im(T) of T (T is a linear operator on V).
Any ideas?
L... | {"url":"http://mathhelpforum.com/advanced-algebra/10965-kernel-image.html","timestamp":"2014-04-17T07:11:12Z","content_type":null,"content_length":"33262","record_id":"<urn:uuid:e996c2d6-fe5b-4af6-ba8c-93948d213965>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00565-ip-10-147-4-33.e... |
Word Problems I Got 99 Word Problems (don't worry, there aren't really that many) True or False
1. 1. Thomas received a 50% increase in his allowance this year. He now receives 12 dollars per week. No more minimum wage! What was his weekly allowance last year? -> 8
2. 2. Jenny has a jar for collecting spare change. S... | {"url":"http://www.shmoop.com/word-problems/quiz-3-true-false.html","timestamp":"2014-04-19T17:26:48Z","content_type":null,"content_length":"39537","record_id":"<urn:uuid:8c3f2fdf-19ed-4848-be4b-85796c00c11e>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00199-ip-10-147-4-33.ec2.inte... |
Bonsall Trigonometry Tutor
...I believe that it is not always the student's fault for their lack of understanding and/or confusion. Einstein once said that "You do not understand something completely if you cannot explain
it simply." With a classroom of 30+ students it can be difficult for a teacher to sufficiently... | {"url":"http://www.purplemath.com/Bonsall_Trigonometry_tutors.php","timestamp":"2014-04-21T02:29:15Z","content_type":null,"content_length":"24046","record_id":"<urn:uuid:13db9409-dce5-4bbe-8dd6-67b14d457423>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00631-ip-10-147-4-33.ec2.inter... |
NYS 3rd Grade Math Word Match Part 4 of 5
Proportion _____ 1 The results of a division problem.
Rectangular Prism _____ 2 A prism with rectangular basis.
Rectangle _____ 3 Intersecting lines that form right angles.
Polygon _____ 4 A decimal whose digits repeat in groups of 1 or ... | {"url":"http://www.armoredpenguin.com/wordmatch/Data/2011.02/1719/17191529.835.html","timestamp":"2014-04-16T04:13:57Z","content_type":null,"content_length":"18731","record_id":"<urn:uuid:efb6aede-3827-4fca-9dff-cd3e220b1cad>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00475-ip-10-1... |
Energy Stored in a spring
Why is the energy stored in a spring 1/2 * distance * force? Isn't work just force * distance?
The full force is not applied for the full distance.
In the simple case of a constant force over a fixed distance you can just multiply force by distance. But in the case of a spring being compressed... | {"url":"http://www.physicsforums.com/showthread.php?p=4215614","timestamp":"2014-04-16T04:17:41Z","content_type":null,"content_length":"25468","record_id":"<urn:uuid:96b65925-134f-4863-84aa-bc3705a88682>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00167-ip-10-147-4-33.ec2.internal.... |
[plt-scheme] log
From: Jos Koot (jos.koot at telefonica.net)
Date: Wed Apr 23 20:01:15 EDT 2008
After playing a litle with procedure log i found:
(1) (log positive-exact-integer) never returns +inf.0 (although some time may be required, especially during compilation, for exponents beyond one million)
(2) (log positive-... | {"url":"http://lists.racket-lang.org/users/archive/2008-April/024333.html","timestamp":"2014-04-17T18:29:31Z","content_type":null,"content_length":"6648","record_id":"<urn:uuid:706be1c3-cd6e-48f5-9ab8-a70766bcc243>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00130-ip-10-147-4-33.ec... |
Richard Elwes
27th February, 2014
If you shuffle a deck of cards perfectly eight times, you get back exactly to where you started. Here’s a video of the magician Adam West doing it:
In this post, we’ll see why this works. First let’s tighten up our terminology: a “perfect shuffle” here is really what magicians call a F... | {"url":"http://richardelwes.co.uk/blog/","timestamp":"2014-04-17T06:42:15Z","content_type":null,"content_length":"54660","record_id":"<urn:uuid:5f8c016e-317e-463d-91ce-d0c6b5712d4c>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00464-ip-10-147-4-33.ec2.internal.warc.gz"} |
Volume 04.02
Table of Contents
C0029_C0029M-09 Test Method for Bulk Density (|P`Unit Weight|P') and Voids in Aggregate
C0031_C0031M-10 Practice for Making and Curing Concrete Test Specimens in the Field
C0033_C0033M-11 Specification for Concrete Aggregates
C0039_C0039M-10 Test Method for Compressive Strength of Cylindr... | {"url":"http://www.astm.org/BOOKSTORE/BOS/TOCS_2011/04.02.html","timestamp":"2014-04-18T08:27:04Z","content_type":null,"content_length":"23347","record_id":"<urn:uuid:de832f96-9f68-424d-9193-ea624a21d4df>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00592-ip-10-147-4-33.ec2.internal.... |
NYS 3rd Grade Math Word Match Part 4 of 5
Proportion _____ 1 The results of a division problem.
Rectangular Prism _____ 2 A prism with rectangular basis.
Rectangle _____ 3 Intersecting lines that form right angles.
Polygon _____ 4 A decimal whose digits repeat in groups of 1 or ... | {"url":"http://www.armoredpenguin.com/wordmatch/Data/2011.02/1719/17191529.835.html","timestamp":"2014-04-16T04:13:57Z","content_type":null,"content_length":"18731","record_id":"<urn:uuid:efb6aede-3827-4fca-9dff-cd3e220b1cad>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00475-ip-10-... |
What “sufficient assumption” means
Yesterday, I offered a definition of the word “assumption” using a very simplistic mathematical example. Today, I’m going to dig a bit deeper into the Assumption category by using another
super-simple bit of math. Don’t panic! If you passed third grade, you’ve seen this math before.
M... | {"url":"http://www.foxlsat.com/what-sufficient-assumption-means/","timestamp":"2014-04-16T16:08:58Z","content_type":null,"content_length":"60040","record_id":"<urn:uuid:73f9161c-0575-433e-8b56-5e4cdae694c6>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00386-ip-10-147-4-33.ec2.interna... |
Phase space plot of the kicked rotor
April 21, 2012
By sieste
In the idealized physical world, a rotor is simply a mass $m$ attached to an axis of length $r$, free to move in the plane. Gravity and friction are absent. Such a rotor becomes a kicked rotor if it
is periodically hit with a hammer. Every kick transfers mom... | {"url":"http://www.r-bloggers.com/phase-space-plot-of-the-kicked-rotor/","timestamp":"2014-04-21T04:46:21Z","content_type":null,"content_length":"42235","record_id":"<urn:uuid:9ff3b3b7-5819-45a5-b5c7-c92d8ce78845>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00222-ip-10-147-4-33.ec2... |
Differential Equations and Mathematical Biology, Second Edition
• Uses various differential equations to model biological behavior
• Discusses the modeling of biological phenomena, including the heartbeat cycle, chemical reactions, electrochemical pulses in the nerve, predator–prey models, tumor growth, and epidemi... | {"url":"http://www.crcpress.com/product/isbn/9781420083576","timestamp":"2014-04-16T04:17:44Z","content_type":null,"content_length":"110983","record_id":"<urn:uuid:19bbbc6e-80c1-4cbe-8af6-522659e90e87>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00640-ip-10-147-4-33.ec2.internal.war... |
Algebra in Matrix Calculator
Free online calculator to solve linear equations of algebra.
Algebra calculation using matrix method. This calculator will help you to solve linear equation of algebra very easily and dynamically. Matrix method is used to calculate the result.
Code to add this calci to your website
Just cop... | {"url":"http://easycalculation.com/matrix/matrix-algebra.php","timestamp":"2014-04-18T05:41:35Z","content_type":null,"content_length":"29829","record_id":"<urn:uuid:a881bed2-58da-4391-9094-8299190239ec>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00214-ip-10-147-4-33.ec2.internal.w... |
Physics Forums - View Single Post - Is the magnetic field a mathematical abstraction?
If two protons are floating in space, they'll feel an electrical field between each other and repel, but if you see them zip by you in space at relativistic speeds, they'll behave differently from
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• Axiomatic definition of sequential algorithms
2011-03-30 Microsoft Channel 9 Lecture 3 on Algorithms
* What are sequential algorithms?
* Postulate 1 (Sequential Time)
* Postulate 2 (Abstract State)
* Postulate 3 (Bounded Exploration)
* Axiomatic definition
* Representation Theorem
• What... | {"url":"http://research.microsoft.com/en-us/um/people/gurevich/video.htm","timestamp":"2014-04-18T20:54:35Z","content_type":null,"content_length":"5882","record_id":"<urn:uuid:7ac6785d-6fc9-43b9-bc31-8a1c77ecb237>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00590-ip-10-147-4-33.ec2.... |
MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi
Size refers to the number of nodes in a parse tree. Generally speaking, you can think of size as code length.
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller. | {"url":"http://www.mathworks.com/matlabcentral/cody/problems/299-vectorization-in-n/solutions?page=2","timestamp":"2014-04-19T19:44:42Z","content_type":null,"content_length":"132153","record_id":"<urn:uuid:e19c9258-6425-40b7-afc3-8f61c1f397ef>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-201404160... |
Mission Viejo Math Tutor
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Garden Grove, CA Math Tutor
Find a Garden Grove, CA Math Tutor
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I was born on the 9th of July 1973, in Troy, New York. My farther was a professional musician and my mother a sociologist to-be. At the age of 6 months, we moved to Europe. Until the age of 22, I
lived mostly between France, Italy and Germany.
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Blaise Pascal
Blaise Pascal
French theologian, mathematician, and philosopher
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Summary Biography Works By Works About
Importance is calculated using the length of this author's Wikipedia entry, as well as the number of works by and about this author.
Pascal was born in Clermont-Ferrand on June 19, 1623,... | {"url":"http://www.ccel.org/ccel/pascal","timestamp":"2014-04-21T03:09:15Z","content_type":null,"content_length":"36857","record_id":"<urn:uuid:263554a7-63b9-4180-aa52-0e39b472e938>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00186-ip-10-147-4-33.ec2.internal.warc.gz"} |
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Anybody here good at physics and curious to know how long it t... | {"url":"http://openstudy.com/updates/4f11f1d1e4b0a4c24f580aa2","timestamp":"2014-04-19T15:25:46Z","content_type":null,"content_length":"96923","record_id":"<urn:uuid:c3b24843-cd4d-4a5f-b310-98bf0df4599b>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00395-ip-10-147-4-33.ec2.internal.w... |
The first plot shows the quadratic polynomial
shifted to the interval [-8,-4]. The second plot shows its negative
but shifted to the interval [-4,0].
The last plot shows a piecewise polynomial constructed by alternating these two quadratic pieces over four intervals. It also shows its first derivative, which was constr... | {"url":"http://www.mathworks.nl/help/matlab/ref/mkpp.html?s_tid=gn_loc_drop&nocookie=true","timestamp":"2014-04-24T19:06:04Z","content_type":null,"content_length":"37827","record_id":"<urn:uuid:2169a91c-60f7-45f0-aad3-cca53a711714>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00571-... |
Choosing the Right Spatial Weighting Matrix in a Quantile Regression Model
ISRN Economics
Volume 2013 (2013), Article ID 158240, 16 pages
Research Article
Choosing the Right Spatial Weighting Matrix in a Quantile Regression Model
Lancashire Business School, University of Central Lancashire, Greenbank Building, Preston,... | {"url":"http://www.hindawi.com/journals/isrn.economics/2013/158240/","timestamp":"2014-04-16T15:59:14Z","content_type":null,"content_length":"218795","record_id":"<urn:uuid:bef3f840-9009-4f9d-91f6-a9bfa0d877a5>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00092-ip-10-147-4-33.ec2.int... |
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9. A farmer wished to construct a rectangular fence with one s... | {"url":"http://openstudy.com/updates/50a32e5ce4b0e745f520ab1b","timestamp":"2014-04-18T13:47:40Z","content_type":null,"content_length":"40546","record_id":"<urn:uuid:16f0b935-9f51-4cfa-88d5-5b064edabf4b>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00560-ip-10-147-4-33.ec2.internal.... |
[SciPy-User] 4-D gaussian mixture model.
Éric Depagne eric@depagne....
Fri Nov 26 10:00:10 CST 2010
Here is my problem.
I have a set of data that are made of 4 parameters : x, y, dx and dy
I'd like to classify this set the following way : put together all (x,y) that
have similar (dx, dy).
I've had a look at Gaussian m... | {"url":"http://mail.scipy.org/pipermail/scipy-user/2010-November/027663.html","timestamp":"2014-04-17T01:14:44Z","content_type":null,"content_length":"3625","record_id":"<urn:uuid:c710109c-acd1-4785-9c66-bcaccb58f505>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00054-ip-10-147-4-33.... |
Need a C program for following question
You have ten boxes, each of which contains nine balls. The balls in one box each weigh 0.9pounds;the balls in all the other boxes weigh exactly one pound each. You have an accurate scale in front of
you, with which you can determine the exact weight, in pounds, of any given set ... | {"url":"http://www.cplusplus.com/forum/beginner/84804/","timestamp":"2014-04-19T17:15:15Z","content_type":null,"content_length":"6696","record_id":"<urn:uuid:fc564b2c-625a-4bd4-a9bb-1090ac66fcba>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00121-ip-10-147-4-33.ec2.internal.warc.gz"... |
Rooks in three dimensions
up vote 29 down vote favorite
Given is an infinite 3-dim chess board and a black king. What is the minimum number of white rooks necessary that can guarantee a checkmate in a finite number of moves?
(In 3-dimensional chess rooks move in straight lines, entering each cube through a face and dep... | {"url":"http://mathoverflow.net/questions/99124/rooks-in-three-dimensions/99269","timestamp":"2014-04-20T01:20:25Z","content_type":null,"content_length":"70871","record_id":"<urn:uuid:0357c574-0221-4e52-9e5a-3e7f8e433586>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00132-ip-10-147-4... |
Substitution of differentials
January 13th 2011, 10:20 PM #1
Oct 2010
Substitution of differentials
I have never thought that differentials could be manipulated as numbers. I do not see why that is, in any case, justified.
Can someone prove that the product of dy/du and 1/(dx/du) is equal to dy/dx ? I have ... | {"url":"http://mathhelpforum.com/calculus/168299-substitution-differentials.html","timestamp":"2014-04-21T07:38:12Z","content_type":null,"content_length":"33170","record_id":"<urn:uuid:1af5f36f-06dd-442c-84aa-952cee696a97>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00291-ip-10-147... |
FOM: 57:Fixpoints/Summation/Large Cardinals
Harvey Friedman friedman at math.ohio-state.edu
Thu Sep 9 22:47:49 EDT 1999
This is the 57th in a series of self contained postings to fom covering a
wide range of topics in f.o.m. Previous ones are:
1:Foundational Completeness 11/3/97, 10:13AM, 10:26AM.
2:Axioms 11/6/97.
... | {"url":"http://www.cs.nyu.edu/pipermail/fom/1999-September/003359.html","timestamp":"2014-04-20T16:39:30Z","content_type":null,"content_length":"14225","record_id":"<urn:uuid:4ef1223f-8f68-4657-8c00-204fe56e926a>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-20140423032004-00084-ip-10-147-4-33.ec2.... |
- In CADE-20 , 2005
"... This paper shows how to harness existing theorem provers for first-order logic to automatically verify safety properties of imperative programs that perform dynamic storage allocation and
destructive updating of pointer-valued structure fields. One of the main obstacles is specifying and provin... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=2437928","timestamp":"2014-04-17T16:08:36Z","content_type":null,"content_length":"34394","record_id":"<urn:uuid:562fc136-070a-4fd0-8113-4aa1a8cbdb11>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00042-ip-10-147-4-33.ec2.internal.war... |
Homework Help
Posted by MS on Wednesday, September 4, 2013 at 1:47am.
Eq of curve is y=b sin^2(pi.x/a). Find mean value for part of curve where x lies between b and a.
I have gone thus far-
y=b[1-cos(2pi x/a)/2]/2
Integral y from a to b=b/2(b-a)-ab/4pi[sin(2pi b/a)-sin2pi)
MV=b/2-[ab sin(2pi b/a)]/(b-a)
Ans given is b/... | {"url":"http://www.jiskha.com/display.cgi?id=1378273649","timestamp":"2014-04-19T14:59:37Z","content_type":null,"content_length":"9476","record_id":"<urn:uuid:2ab69c66-d521-401b-9c72-fb751a433ba2>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00160-ip-10-147-4-33.ec2.internal.warc.gz"... |
Hungarian mathematician Endre Szemerédi gets 2012 Abel Prize
The winner of the prestigious Abel Prize of the Norwegian Academy of Science and Letters for the year 2012 is 72-year-old Hungarian mathematician Endre Szemerédi of the Alfréd Rényi Institute of
Mathematics, Hungarian Academy of Sciences, Budapest, and Depart... | {"url":"http://www.thehindu.com/news/article3025783.ece?homepage=true","timestamp":"2014-04-19T04:34:09Z","content_type":null,"content_length":"74628","record_id":"<urn:uuid:85992e72-6b0b-44bb-a754-f62e112f6025>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00176-ip-10-147-4-33.ec2.i... |
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)
Billingsley's packing dimension
Author: Manav Da... | {"url":"http://www.ams.org/journals/proc/2008-136-01/S0002-9939-07-09069-7/home.html","timestamp":"2014-04-19T04:31:21Z","content_type":null,"content_length":"29633","record_id":"<urn:uuid:216ee1db-549e-4b54-9b8a-b387d38b1de8>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00570-ip-10... |
Position location techniques and applications - Part 3: Mobility in wireless networks | EE Times
Design How-To
Position location techniques and applications - Part 3: Mobility in wireless networks
[Part one begins a discussion of the basic evolution of wireless networks and how position location could be considered fro... | {"url":"http://www.eetimes.com/document.asp?doc_id=1279190","timestamp":"2014-04-16T22:29:05Z","content_type":null,"content_length":"138684","record_id":"<urn:uuid:7a2d2483-ab01-470a-9511-973436d5a627>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00032-ip-10-147-4-33.ec2.internal.war... |
Principles of Inorganic Materials Design, 2nd Edition
Principles of Inorganic Materials Design, 2nd Edition
ISBN: 978-0-470-56753-1
500 pages
February 2010
Unique interdisciplinary approach enables readers to overcome complex design challenges
Integrating concepts from chemistry, physics, materials science, metallurgy... | {"url":"http://www.wiley.com/WileyCDA/WileyTitle/productCd-0470567538.html","timestamp":"2014-04-20T18:35:16Z","content_type":null,"content_length":"51064","record_id":"<urn:uuid:5d05088b-d31b-4d13-822b-6d210fa63bca>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00421-ip-10-147-4-33.... |
New Page
Sample Secondary Texts and Supplementary Resources for MA 380
Secondary Education Seminar in Mathematics
1. Pre-Algebra. Upper Saddle River, NJ: Globe Fearon E... | {"url":"http://academics.smcvt.edu/gashline/381/schooltexts.htm","timestamp":"2014-04-16T10:17:53Z","content_type":null,"content_length":"4828","record_id":"<urn:uuid:dbd7a744-637b-4000-80b8-52f8ce4d386c>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00545-ip-10-147-4-33.ec2.internal... |
Complex Analysis
Mathematics 352, Spring 2005 Complex Analysis It is no paradox to say that in our most theoretical moods we may be nearest to our most practical applications.
Ma 416: Complex Variables Solutions to Homework Assignment 9
Ma 416: Complex Variables Solutions to Homework Assignment 9 Prof. Wickerhauser Due... | {"url":"http://www.cawnet.org/docid/solutions+rudin+complex+analysis/","timestamp":"2014-04-16T20:08:45Z","content_type":null,"content_length":"46702","record_id":"<urn:uuid:555f8be3-7b41-446d-a6d1-3eaeacece321>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00217-ip-10-147-4-33.ec2.i... |
Lilburn Precalculus Tutor
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Probability and Finance: It’s Only a Game!
Glenn Shafer and Vladimir Vovk
Abstracts and keywords for the e-book edition
August 11, 2011
Chapter 1. Introduction: Probability and Finance as a Game
T... | {"url":"http://www.docstoc.com/docs/89497929/ebook","timestamp":"2014-04-20T00:15:45Z","content_type":null,"content_length":"66109","record_id":"<urn:uuid:714a895b-5b89-4fc2-90a4-5298ec4b1e02>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00123-ip-10-147-4-33.ec2.internal.warc.gz"} |
uniform convergence
March 11th 2010, 06:45 AM #1
Aug 2009
uniform convergence
Let $f_n= n \chi_{[\frac{1}{n},\frac{2}{n}]} \,$ on $\mathbb{R}$ for all $n \in \mathbb{N}$ and $f=0$ on $\mathbb{R}.$
Show that ther does not exist a set of measure zero ,on the complement of which $(f_n)$ is uniformly convergent... | {"url":"http://mathhelpforum.com/differential-geometry/133297-uniform-convergence.html","timestamp":"2014-04-17T09:03:49Z","content_type":null,"content_length":"36681","record_id":"<urn:uuid:6bd655c0-64bf-453c-8ab8-f6aa1a412e84>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00031-ip-... |
Proof by Induction (Urgent hint required)
November 24th 2008, 05:38 AM #1
Proof by Induction (Urgent hint required)
Let X be a discrete random variable and $g: R_X \rightarrow \mathbb{R}$ a continuous function, which is convex, i.e. for all $x_1,x_2 \in R_X$ and $\lambda \in (0,1)$
$g(\lambda x_1 + (1-\lambda)x... | {"url":"http://mathhelpforum.com/advanced-statistics/61339-proof-induction-urgent-hint-required.html","timestamp":"2014-04-16T19:13:39Z","content_type":null,"content_length":"39425","record_id":"<urn:uuid:e5170254-a13e-4261-996e-e3bfbc8e6837>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-2014041600... |
Vista, CA Math Tutor
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Tyrone, GA Math Tutor
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A message to calm your nerves...using math
Hey everyone!
A sentiment that used to be quite obvious seems to have been forgotten here in the buckeye nation as of late. Going undefeated is hard.
It seems like everyone is very worried about the possibility of the buckeyes going undefeated and being left out of the champio... | {"url":"http://www.elevenwarriors.com/blogs/goalscorer9/a-message-to-calm-your-nervesusing-math","timestamp":"2014-04-20T19:22:15Z","content_type":null,"content_length":"85465","record_id":"<urn:uuid:542dd48e-47da-40b0-be1a-080240e672f6>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-... |
Number of results: 215,501
math -fractions
ordering fractions 1/2,7/8,9/10,1/3,3/5,1/4 write the above fractions in order.
Monday, January 10, 2011 at 4:20pm by arjel
I agree with ^ and fractions are not my favorite units but I'm only in 5th grade and have a lot of fractions in my future. Just try and trust me ( a comp... | {"url":"http://www.jiskha.com/search/index.cgi?query=Math%2FFractions","timestamp":"2014-04-18T11:04:23Z","content_type":null,"content_length":"34831","record_id":"<urn:uuid:16a0ff94-bb21-4c82-9392-f8aced3d96de>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00070-ip-10-147-4-33.ec2.i... |
st: Re: FE over two columns
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st: Re: FE over two col... | {"url":"http://www.stata.com/statalist/archive/2011-10/msg01094.html","timestamp":"2014-04-20T08:28:34Z","content_type":null,"content_length":"11027","record_id":"<urn:uuid:013fa320-b049-4cb6-935b-020286d62661>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00359-ip-10-147-4-33.ec2.in... |
when ur going to the mall
and u actually have money
(via sodamnrelatable)
Ghost Car Appears Out of Nowhere
do you ever want to sleep for 14 years without waking up
(Source: giggle, via imnotyourprincessleavemealone)
i don’t think anyone realises how much effort i put into trying not punching everyone a... | {"url":"http://pinkhobofish.tumblr.com/","timestamp":"2014-04-16T15:58:48Z","content_type":null,"content_length":"31526","record_id":"<urn:uuid:6e008bcd-e82e-4da2-acb5-c0e662d9e7c0>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00533-ip-10-147-4-33.ec2.internal.warc.gz"} |
Plotting Confidence Intervals in R
Hi all,
I see some nice graphs where both 90% and 95% CI intervals are plotted (e.g. the line is 95% interval whereas small ticks indicate 90% interval). Could someone point to an example code of this in R?
I would really appreciate.
I did that but could not find anything that describ... | {"url":"http://www.poliscijobrumors.com/topic.php?id=74188","timestamp":"2014-04-18T00:15:31Z","content_type":null,"content_length":"17234","record_id":"<urn:uuid:c37c3469-1897-417d-912f-e01a1bb822a0>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00422-ip-10-147-4-33.ec2.internal.war... |
Weekly Problem 50 - 2013
Copyright © University of Cambridge. All rights reserved.
'Weekly Problem 50 - 2013' printed from http://nrich.maths.org/
How many different solutions are there to this letter sum?
Different letters stand for different digits, and no number begins with zero.
If you liked this problem,
here is... | {"url":"http://nrich.maths.org/2934/index?nomenu=1","timestamp":"2014-04-19T20:26:45Z","content_type":null,"content_length":"3514","record_id":"<urn:uuid:15a18172-06ea-47bd-be29-a4bb8c962ba0>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00621-ip-10-147-4-33.ec2.internal.warc.gz"} |
Understanding Stresses and Modular ratio | RCC Structures | Civil Engineering Projects
Understanding Stresses and Modular ratio | RCC Structures
In one of our previous articles, we discussed “Basic definitions and formulas”.
Now we will move on with our discussion on “Permissible stresses in concrete and steel” and “Un... | {"url":"http://www.civilprojectsonline.com/building-construction/understanding-stresses-and-modular-ratio-rcc-structures/","timestamp":"2014-04-18T00:13:20Z","content_type":null,"content_length":"47275","record_id":"<urn:uuid:d9019ed8-f85e-4d3e-91bc-9ab88a8ff41d>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/war... |
question about graphs / undirected tree
June 12th 2011, 02:00 AM #1
Junior Member
Jun 2011
question about graphs / undirected tree
I am a little bit stuck in understanding this question ....
Can someone please help me with this and explain how I find the answer?
"In a directed graph every vertex has an ... | {"url":"http://mathhelpforum.com/discrete-math/182883-question-about-graphs-undirected-tree.html","timestamp":"2014-04-17T04:01:16Z","content_type":null,"content_length":"41058","record_id":"<urn:uuid:6773fd61-dd07-4350-ab93-a488b53bc397>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206... |
My students love Geometry because of Math out of the Box®!
25th February, 2010 - Posted by Sammie Gann - 15 Comments
Not all inquiry is based in the science classroom. My students have learned so much through a math program called Math Out of the Box®. It is a K-5 inquiry based math curriculum filled with
engaging, h... | {"url":"http://iteachinquiryblog.com/?p=123","timestamp":"2014-04-18T08:05:51Z","content_type":null,"content_length":"35821","record_id":"<urn:uuid:44302d2e-8355-47a3-b43f-bedd2a6aa8a7>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00246-ip-10-147-4-33.ec2.internal.warc.gz"} |
Link Homology and Categorification in Kyoto
Posted by John Baez
Aaron Lauda points out an interesting conference:
You can see notes for some of the talks!
Categorifying knot invariants is all the rage, as these talks show:
The last talk here hints most strongly at the big picture. But, it’s best to look at all the talk... | {"url":"http://golem.ph.utexas.edu/category/2007/05/link_homology_and_categorifica.html","timestamp":"2014-04-18T06:07:13Z","content_type":null,"content_length":"83039","record_id":"<urn:uuid:c349eb22-47ba-4ee6-93fb-89e8f891a86b>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00261-ip... |
Solving IVP in Matlab (ode45)
December 15th 2008, 07:36 PM #1
Senior Member
Nov 2008
Solving IVP in Matlab (ode45)
Good day to you!
I want to solve an IVP in matlab, given by
$x_1 ' (t) = -4*10^{-2} x_1(t) +3*10^7 x_2(t)x_3(t)$
$x_2'(t) = 4*10^{-2}-10^{4}x_2(t)x_3(t) - 3*10^7x_2^2(t)$
$x_3'(t) =... | {"url":"http://mathhelpforum.com/math-software/65177-solving-ivp-matlab-ode45.html","timestamp":"2014-04-18T03:56:26Z","content_type":null,"content_length":"41011","record_id":"<urn:uuid:6aae038e-0d27-4a54-862a-57f0061cd34b>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00194-ip-10-1... |
Math Help
February 20th 2009, 06:46 AM #1
Feb 2009
What are the min and max values of:
for reals $x,y,z$ such that $xyz=1$?
EDIT: I now see that $1$ is the only possible value if only xyz=1, but I don't know how to reduce it to show that fact. Anyone?
Last edited by Jone; February 20th 2009 at 08:0... | {"url":"http://mathhelpforum.com/algebra/74671-equality.html","timestamp":"2014-04-17T12:37:42Z","content_type":null,"content_length":"33789","record_id":"<urn:uuid:fa68b4cc-acd7-410d-a7a2-2b68aa3e6ec2>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00617-ip-10-147-4-33.ec2.internal.w... |
Elementary particles pre-Higgs coupling
I must concede that in the Standard Model, the interactions of the Higgs particle and the elementary fermions provide additional constraints. The interactions:
(left quark) . (up Higgs) . (right up quark)
(left quark) . (down Higgs) . (right down quark)
(left lepton) . (up Higgs)... | {"url":"http://www.physicsforums.com/showthread.php?s=a1f0d34414434b0ba7f6951927286e94&p=4507068","timestamp":"2014-04-18T03:04:25Z","content_type":null,"content_length":"20610","record_id":"<urn:uuid:7610eb09-e301-4483-a24e-ac0f14c42f21>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-... |
Residue theorem
February 10th 2009, 06:04 AM
Residue theorem
Hey guys.
So I got this integral I need to solve, of curse using the residue theorem.
The thing is, that I don't understand the curve.
I know that whenever Z^2 = integer, this function has a singularity point because e^(2*pi*i*n) = 1.
But ... | {"url":"http://mathhelpforum.com/calculus/72828-residue-theorem-print.html","timestamp":"2014-04-19T15:54:03Z","content_type":null,"content_length":"7102","record_id":"<urn:uuid:4674dd71-a49e-4084-8b00-f6f1359c5398>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00297-ip-10-147-4-33.e... |
Physics Key Topics:
DC Circuit, Ohm’s Law
This problem focuses on the EGIL flight controller, who monitors the electrical systems, fuel cells and associated cryogenics of NASA's space shuttle. Using a circuit layout from the space shuttle,
students will apply Ohm's law to solve for unknowns.
Students will
• apply Ohm... | {"url":"http://www.nasa.gov/audience/foreducators/mathandscience/controlcenter/Prob_ShortCircuit_detail.html","timestamp":"2014-04-18T18:20:46Z","content_type":null,"content_length":"19431","record_id":"<urn:uuid:3b2137c8-29cb-4fab-bf6d-31a83778a762>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-201... |
braided infinity-group
braided infinity-group
Group Theory
Classical groups
Finite groups
Group schemes
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Lie groups
Super-Lie groups
Higher groups
Cohomology and Extensions
$(\infty,1)$-Category theory
Basic concepts
Universal constructions
Local presentation
An ∞-group $G$ is braided if it is equippe... | {"url":"http://ncatlab.org/nlab/show/braided+infinity-group","timestamp":"2014-04-18T13:18:42Z","content_type":null,"content_length":"29199","record_id":"<urn:uuid:a15639ce-8ff6-4cc3-9838-0889766af76b>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00561-ip-10-147-4-33.ec2.internal.wa... |
Physics Problems:
Physics Problems have a special place in Physics Learning.
We understand Physics – it means that we can solve physics problems.
At the same time to understand physics we need to solve as many physics problems as possible.
Only by solving physics problems we can understand Physics Laws and we can unde... | {"url":"http://www.solvephysics.com/","timestamp":"2014-04-19T14:56:39Z","content_type":null,"content_length":"23513","record_id":"<urn:uuid:b5048e9f-f673-4611-8690-2087b97488de>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00420-ip-10-147-4-33.ec2.internal.warc.gz"} |
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Topic: Log Logistic and Weibull distribution
Replies: 1 Last Post: Mar 3, 2013 10:58 PM
Messages: [ Pre... | {"url":"http://mathforum.org/kb/message.jspa?messageID=8513109","timestamp":"2014-04-19T08:28:27Z","content_type":null,"content_length":"17972","record_id":"<urn:uuid:de22e079-6709-43b7-a4e1-3ec1379ef7f4>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00129-ip-10-147-4-33.ec2.internal... |
• Physicists propose a modular quantum computer architecture that offers scalability // February 22, 2014
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Geometry and Grid
Next: Results Up: PHYSICS OF AIRFOIL Previous: Algorithm
The þstage compressor geometry used in this study models the midspan geometry of an experiment by Dring (AGARD, 1989) and is identical to the 50% axial gap configuration of Gundy-Burlet (1991). The
experimental configuration consists of an i... | {"url":"http://ti.arc.nasa.gov/m/profile/gundy/igt97_comp/node5.html","timestamp":"2014-04-19T14:47:39Z","content_type":null,"content_length":"5786","record_id":"<urn:uuid:a90c269f-3b94-470a-836f-32442c92ff2c>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00495-ip-10-147-4-33.ec2.inte... |
Kindergarten Math Vocabulary
VocabularySpellingCity provides these kindergarten math word lists so teachers and parents can supplement the kindergarten math curriculum with interactive educational vocabulary games. The games and
lists are ready-to-use: just select any math area and word list and then pick one of the ... | {"url":"http://www.spellingcity.com/kindergarten-math-vocabulary.html","timestamp":"2014-04-17T22:17:51Z","content_type":null,"content_length":"71248","record_id":"<urn:uuid:de5c2f9e-5368-4979-adb8-753fa6797ff9>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00198-ip-10-147-4-33.ec2.i... |
[Numpy-discussion] weibull distribution has only one parameter?
Ryan May rmay@ou....
Mon Nov 12 11:21:31 CST 2007
D.Hendriks (Dennis) wrote:
> Alan G Isaac wrote:
>> On Mon, 12 Nov 2007, "D.Hendriks (Dennis)" apparently wrote:
>>> All of this makes me doubt the correctness of the formula
>>> you proposed.
>> It is a... | {"url":"http://mail.scipy.org/pipermail/numpy-discussion/2007-November/029904.html","timestamp":"2014-04-16T13:37:10Z","content_type":null,"content_length":"4144","record_id":"<urn:uuid:f1691f6b-0a58-4978-8f77-dbcbaf9ccc38>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00254-ip-10-14... |
Proof of Normal Distribution
Date: 10/15/97 at 07:08:30
From: Kevin Sauter
Subject: Proof of Sample Mean and Sample Std. Dev. being normal if
sample is from a Normally Distributed Population
Dr. Math,
Can you explain (and prove) to me why samples taken from a normally
distributed population will also be normally distri... | {"url":"http://mathforum.org/library/drmath/view/52747.html","timestamp":"2014-04-18T21:28:04Z","content_type":null,"content_length":"7418","record_id":"<urn:uuid:4a9d4d59-49ee-4992-8763-2896b8c09ca5>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00282-ip-10-147-4-33.ec2.internal.warc... |
Interpreting the Importance and Precision
of Therapeutic Results
Centre for Evidence Based Medicine Stats Calculator
Vanderbilt- Power and Sample Size Calculator
The magnitude of effect is usually expressed as one of the following, ... | {"url":"http://www.ebm.med.ualberta.ca/TherapyCalc.html","timestamp":"2014-04-20T08:14:01Z","content_type":null,"content_length":"17709","record_id":"<urn:uuid:34088de5-bb55-4312-b8cd-bfd6e7a35f0d>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00362-ip-10-147-4-33.ec2.internal.warc.g... |
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Professor of Mathematics
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Professor of Mathematics
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Chair, Department of Mathematics and Comp... | {"url":"http://arts@wheatoncollege.edu/mathematics-computer-science/faculty/","timestamp":"2014-04-19T01:56:07Z","content_type":null,"content_length":"16514","record_id":"<urn:uuid:b9d8181c-c5c9-43b5-ba7e-bbb2eb15a3f4>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00290-ip-10-147-4-3... |
Centreville, VA Prealgebra Tutor
Find a Centreville, VA Prealgebra Tutor
...I also tutor outside of BITS other children in my neighborhood and have experience tutoring children with learning disabilities. I am a patient person as I realize all children are different
and learn at various paces. I am a hard worker an... | {"url":"http://www.purplemath.com/Centreville_VA_Prealgebra_tutors.php","timestamp":"2014-04-18T03:56:57Z","content_type":null,"content_length":"24267","record_id":"<urn:uuid:3299f50b-e932-4653-9dc7-bf44efed239e>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00445-ip-10-147-4-33.ec2.... |
Adapting Annualized Volatility to Other Time Frames
In Calculating Centered and Non-centered Historical Volatility I attempted to walk through the steps and calculations necessary for determining of historical volatility (HV) using an Excel
The second to last step in the calculation (before translating the final number... | {"url":"http://vixandmore.blogspot.com/2009/12/adapting-annualized-volatility-to-other.html","timestamp":"2014-04-17T10:01:41Z","content_type":null,"content_length":"120016","record_id":"<urn:uuid:bd98141b-0a6a-43b6-8d97-4dac1f92f290>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-001... |
Probabilistic Multiagent Reasoning over Annotated Amalgamated F-Logic Ontologies
ISRN Artificial Intelligence
Volume 2013 (2013), Article ID 691707, 11 pages
Research Article
Probabilistic Multiagent Reasoning over Annotated Amalgamated F-Logic Ontologies
University of Zagreb, Faculty of Organization and Informatics, P... | {"url":"http://www.hindawi.com/journals/isrn/2013/691707/","timestamp":"2014-04-16T23:02:42Z","content_type":null,"content_length":"682075","record_id":"<urn:uuid:04c3d841-ccc4-4c9f-8eed-52ead81405e8>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00622-ip-10-147-4-33.ec2.internal.warc... |
Two-variable p-adic L-functions of elliptic curves
up vote 15 down vote favorite
Suppose $K$ is an imaginary quadratic field (with class number 1, for simplicity), $p \ne 2$ a prime split in $K$, and $K_\infty$ the $\mathbb{Z}_p^2$-extension of $K$.
If $E / \mathbb{Q}$ is an elliptic curve with CM by $K$, then there is... | {"url":"http://mathoverflow.net/questions/67779/two-variable-p-adic-l-functions-of-elliptic-curves","timestamp":"2014-04-20T13:34:36Z","content_type":null,"content_length":"59889","record_id":"<urn:uuid:f6d2ca1c-7240-4215-a0d3-c1074114a9a4>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-201404160052... |
In the previous days I have received several emails asking for clarification of the effective sample size derivation in “Introducing Monte Carlo Methods with R” (Section 4.4, pp. 98-100). Formula
(4.3) gives the Monte Carlo estimate of the variance of a self-normalised importance sampling estimator (note the change fro... | {"url":"http://www.r-bloggers.com/2010/09/page/6/","timestamp":"2014-04-21T07:34:00Z","content_type":null,"content_length":"37485","record_id":"<urn:uuid:fe99227d-41e7-46ec-a012-7775a63cc22a>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00589-ip-10-147-4-33.ec2.internal.warc.gz"} |