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Proving Congruence Without Leech Lattice
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Let $\sigma_{11}(n)$ denote the sum of the 11th powers of the positive integral divisors of the positive integer n. Let $\tau(n)$ denote Ramanujan's tau function, which is the coefficient of $q^n$ in
the power series $q \Pi_{n=1}^{\infty} (1-q^{n})^{... | {"url":"http://mathoverflow.net/questions/53741/proving-congruence-without-leech-lattice?sort=newest","timestamp":"2014-04-18T23:49:30Z","content_type":null,"content_length":"61416","record_id":"<urn:uuid:e729de17-9fe6-4e23-b42f-fb9975f91de6>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005... |
Golden Section Search--When to use it?
10-08-2004 #1
Registered User
Join Date
Oct 2004
Golden Section Search--When to use it?
I have some x inside an interval say [a,b] where I know that my solution lies. Due to the nonlinearity of the problem solving it by traditional agorithms is not possible. I can evaluate... | {"url":"http://cboard.cprogramming.com/cplusplus-programming/57628-golden-section-search-when-use.html","timestamp":"2014-04-17T02:37:09Z","content_type":null,"content_length":"55338","record_id":"<urn:uuid:42ffffd5-cbd9-44b6-a7b0-d92102a5e7f4>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-20140423... |
orthographic_down :: hi -> (lo, Scalar) Source
Reduce number of dimensions by one. (Return the dropped dimension as a Scalar.)
orthographic_up :: (lo, Scalar) -> hi Source
Increase number of dimensions by one. (Supply value for new dimension as a Scalar.)
perspective_down :: hi -> (lo, Scalar) Source
Perspective-pr... | {"url":"http://hackage.haskell.org/package/AC-Vector-Fancy-2.1.2/docs/Data-Vector-Fancy.html","timestamp":"2014-04-20T12:47:29Z","content_type":null,"content_length":"12746","record_id":"<urn:uuid:5f886a53-83cd-40ff-84f4-f7e0b49503dd>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-003... |
This chapter describes the (rnrs sorting (6))library for sorting lists and vectors.
Proc should accept any two elements of list or vector, and should not have any side effects. Proc should return a true value when its first argument is strictly less than its second, and #f
The list-sort and vector-sort procedures perfo... | {"url":"http://www.r6rs.org/final/html/r6rs-lib/r6rs-lib-Z-H-5.html","timestamp":"2014-04-17T06:40:57Z","content_type":null,"content_length":"5901","record_id":"<urn:uuid:5ac86af5-ff6c-4ee7-bb82-8bc50e26baae>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00273-ip-10-147-4-33.ec2.inte... |
f Pseudo-Empirical Induction
On the Use of
Pseudo-Empirical Induction
... | {"url":"http://nlp.stanford.edu/~wcmac/papers/peim.html","timestamp":"2014-04-19T09:33:33Z","content_type":null,"content_length":"138807","record_id":"<urn:uuid:309a9bde-ebb7-460b-91e1-40d632f60b32>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00561-ip-10-147-4-33.ec2.internal.warc.... |
How To Calculate Combinations ?
I want to see how much combinations are possible when i got 6 numbers..
-- got this numbers 1--2--3--4--5--6
-- want to calculate how much combinations of ( 2 ) numbers possible
-- want to calculate how much of ( 3 ) numbers possible
-- want to calculate how much of ( 4 ) numbers possibl... | {"url":"http://excel.bigresource.com/How-to-calculate-combinations--VhqDAS6c.html","timestamp":"2014-04-16T10:45:03Z","content_type":null,"content_length":"74786","record_id":"<urn:uuid:07013842-16c6-4f50-b554-2242180bac07>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00347-ip-10-14... |
Diffusion Models for Information Dissemination Dynamics in Wireless Complex Communication Networks
Journal of Complex Systems
Volume 2013 (2013), Article ID 972352, 13 pages
Research Article
Diffusion Models for Information Dissemination Dynamics in Wireless Complex Communication Networks
^1National Taiwan University o... | {"url":"http://www.hindawi.com/journals/jcs/2013/972352/","timestamp":"2014-04-20T09:39:53Z","content_type":null,"content_length":"280121","record_id":"<urn:uuid:000a93e7-a35d-4ae7-96cb-10643ab28ee9>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00132-ip-10-147-4-33.ec2.internal.warc.... |
Symbol Error Rate (SER) for 4-PAM
Following discussion of bit error rate (BER) for BPSK and bit error rate for FSK, it may be interesting to move on to discuss a higher order constellation such as Pulse Amplitude Modulation (PAM).
Consider that the alphabets used for a 4-PAM is $\alpha_{4PAM}=\left{\pm 1,\ \pm 3\right}... | {"url":"http://www.dsplog.com/2007/10/07/symbol-error-rate-for-pam/","timestamp":"2014-04-18T18:55:42Z","content_type":null,"content_length":"120891","record_id":"<urn:uuid:365fb77d-f4eb-4b48-8635-21fbbc21225c>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00371-ip-10-147-4-33.ec2.int... |
"I Don't Know Where/How To Start!"
I get that kind type of plea often on only physics forums and when students used to come and see me for help with homework-type problems. Often, the person asking the question simply typed in the
problem, and showed nothing else other than the claim that he/she just simply don't know ... | {"url":"http://physicsandphysicists.blogspot.com/2013/12/i-dont-know-wherehow-to-start.html","timestamp":"2014-04-21T04:32:08Z","content_type":null,"content_length":"162765","record_id":"<urn:uuid:d4823cbc-2c55-4c6c-b4d8-adbdd1fa05ed>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-001... |
arguments for the distribution
June 5th 2010, 06:48 AM
arguments for the distribution
To find out if parents in general are dissatisfied they wish to examine the attitude of 100 randomly chosen families with children who are affected.
a) Find arguments for the distribution of number of families with children wh... | {"url":"http://mathhelpforum.com/statistics/147851-arguments-distribution-print.html","timestamp":"2014-04-20T13:44:10Z","content_type":null,"content_length":"4372","record_id":"<urn:uuid:82450ed9-81c2-4273-99d5-21ffb8122c19>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00656-ip-10-... |
Syntax error- HELP
Author Syntax error- HELP
Ranch Hand
Hi there. Just a quick question I keep getting the following error but don't know why-as far as I can see the code is fine but knowing me i'm probabl... | {"url":"http://www.coderanch.com/t/395695/java/java/Syntax-error","timestamp":"2014-04-21T09:59:17Z","content_type":null,"content_length":"31208","record_id":"<urn:uuid:410ba89f-7e90-4007-a93f-15c16683c33b>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00570-ip-10-147-4-33.ec2.intern... |
Marpa::R2::NAIF::Semantics::Infinite - How the NAIF deals with infinite ambiguity
This document deals with Marpa's low-level NAIF interface. If you are new to Marpa, or are not sure which interface you are interested in, or do not know what the Named Argment InterFace (NAIF) is,
you probably want to look instead at the... | {"url":"http://search.cpan.org/~jkegl/Marpa-R2-2.078000/pod/NAIF/Semantics/Infinite.pod","timestamp":"2014-04-17T02:30:17Z","content_type":null,"content_length":"16109","record_id":"<urn:uuid:5fa58daf-4a3f-46a1-bee3-93c4becf07e2>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00571-ip-... |
Probability and statistics blog
In his book Quantum Computing Since Democritus, Scott Aaronson poses the following question:
Suppose that you’re at a party where every guest is given a hat as they walk in. Each hat has either a pineapple or a watermelon on top, picked at random with equal probability. The guests don’t ... | {"url":"http://www.statisticsblog.com/tag/anthropic-principle/","timestamp":"2014-04-16T07:18:00Z","content_type":null,"content_length":"45472","record_id":"<urn:uuid:8cd36a5c-9b82-4a5f-b368-74af14d49596>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00024-ip-10-147-4-33.ec2.internal... |
New Carrollton, MD Algebra 1 Tutor
Find a New Carrollton, MD Algebra 1 Tutor
...I can help you achieve your business school dream by reviewing the math you need to know and only the math you need to know. We will also go over test taking strategies to master the CAT. I
have an official GMAT score of 720 (94th Perce... | {"url":"http://www.purplemath.com/New_Carrollton_MD_algebra_1_tutors.php","timestamp":"2014-04-16T10:20:11Z","content_type":null,"content_length":"24275","record_id":"<urn:uuid:d6735382-2854-45a9-821a-4cc5af3744d4>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00374-ip-10-147-4-33.ec2... |
Conditional Expectation involving Poisson Distribution
January 20th 2010, 07:59 AM #1
Oct 2009
Conditional Expectation involving Poisson Distribution
Let X1,...,Xn be a random sample from a Poisson distribution with mean theta. Find $E(Y_1 = X_1 + 2X_2 + 3X_3 | Y_2 = \Sigma X_i)$
I know that $\Sigma X_i = P... | {"url":"http://mathhelpforum.com/statistics/124587-conditional-expectation-involving-poisson-distribution.html","timestamp":"2014-04-17T22:00:24Z","content_type":null,"content_length":"35039","record_id":"<urn:uuid:8766b23f-edc4-4f0e-9b3a-3b496ab2d6e6>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-... |
Integration by Parts
February 22nd 2013, 03:31 PM #1
Feb 2013
United States
Integration by Parts
Hi all, I'm a little new here, but I hope you don't mind me joining your little community as I delve into Calculus II. I'd really like to learn to enjoy this class and be proficient in it. I hope
you all wil... | {"url":"http://mathhelpforum.com/calculus/213620-integration-parts.html","timestamp":"2014-04-21T13:51:46Z","content_type":null,"content_length":"45730","record_id":"<urn:uuid:e69d089b-2f9c-4d68-826e-22fb22a5d967>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00591-ip-10-147-4-33.ec2... |
Tom is buying a 42 inch plasma high definition 1080p television, which is on sale for 40% off. If the aspect ratio... - Homework Help - eNotes.com
Tom is buying a 42 inch plasma high definition 1080p television, which is on sale for 40% off. If the aspect ratio for this widescreen is 16:9 and the frame around the scree... | {"url":"http://www.enotes.com/homework-help/tom-buying-42-inch-plasma-high-definition-1080p-435193","timestamp":"2014-04-16T17:18:26Z","content_type":null,"content_length":"28210","record_id":"<urn:uuid:caf1c519-4460-4fb8-95fe-9b0117c94497>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-201404160052... |
Second order non homogeneous differential equation
February 10th 2011, 01:45 AM #1
Dec 2010
I have to solve this DE
((x+2)^2)y'' -2y=4
the hint says to get rid of the x+2 but I have no idea where to start from... do I have to replace x+2 with another variable or what?
I would replace the $x+2$ with ... | {"url":"http://mathhelpforum.com/differential-equations/170754-second-order-non-homogeneous-differential-equation.html","timestamp":"2014-04-16T22:04:03Z","content_type":null,"content_length":"34698","record_id":"<urn:uuid:01f6d6d5-db09-4983-ace4-9996c57a66a6>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/C... |
Some results on the value distribution of meromorphic functions
Hinchliffe, James David (2003) Some results on the value distribution of meromorphic functions. PhD thesis, University of Nottingham.
In Chapter 1 we introduce many of the concepts and techniques, including Nevanlinna theory, referred to throughout the res... | {"url":"http://etheses.nottingham.ac.uk/43/","timestamp":"2014-04-23T22:11:21Z","content_type":null,"content_length":"16484","record_id":"<urn:uuid:dd5e9d6d-a8f8-4d95-bab3-83e287f00d5b>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00450-ip-10-147-4-33.ec2.internal.warc.gz"} |
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What is the least number of different colours needed to paint ... | {"url":"http://openstudy.com/updates/503ca8f0e4b0f52e046a967d","timestamp":"2014-04-17T04:21:52Z","content_type":null,"content_length":"114328","record_id":"<urn:uuid:1f69f604-c89d-49e1-a555-b968321bb3d8>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00143-ip-10-147-4-33.ec2.internal... |
Re: Mathematica Plot [help]
[Date Index] [Thread Index] [Author Index]
Re: Mathematica Plot [help]
Wei Xu wrote:
> I want to draw a surface, say sin[x,y], defined on a triangular domain,
> say, x:[0,1], y:[0,1] and x+y <=1.
> I tried to use ... | {"url":"http://forums.wolfram.com/mathgroup/archive/1998/Jan/msg00075.html","timestamp":"2014-04-21T07:12:56Z","content_type":null,"content_length":"35448","record_id":"<urn:uuid:78ce7170-10c0-4e66-baf8-03e5712a3de8>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00276-ip-10-147-4-33.... |
The Pythagoreans
Next: Early heliocentric systems Up: Early Greeks Previous: Early cosmology
About five centuries B.C. the school founded by the Greek philosopher, mathematician and astronomer Pythagoras flourished in Samos, Greece. The Pythagoreans believed (but failed to prove) that the
universe could be underst... | {"url":"http://physics.ucr.edu/~wudka/Physics7/Notes_www/node32.html","timestamp":"2014-04-18T16:14:35Z","content_type":null,"content_length":"8660","record_id":"<urn:uuid:ae932468-5e93-463a-8443-abf523cf4a16>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00225-ip-10-147-4-33.ec2.int... |
four-color problem
A long-standing problem that dates back to 1852 when Francis Guthrie, while trying to color a map of the counties of England noticed that four colors were enough to ensure that no adjacent counties
were colored the same. He asked his brother Frederick if it was true that any map could be colored usin... | {"url":"http://www.daviddarling.info/encyclopedia/F/four-color_problem.html","timestamp":"2014-04-17T15:29:21Z","content_type":null,"content_length":"10277","record_id":"<urn:uuid:f5592d56-f079-488c-a16c-0e082e44e657>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00471-ip-10-147-4-33.... |
A Kripke/Kleene semantics for general logic programs
Results 1 - 10 of 15
- JOURNAL OF LOGIC PROGRAMMING , 1994
"... We survey here various approaches which were proposed to incorporate negation in logic programs. We concentrate on the proof-theoretic and model-theoretic issues and the relationships between
them. ..."
... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1179180","timestamp":"2014-04-20T17:11:41Z","content_type":null,"content_length":"38370","record_id":"<urn:uuid:16bd58ac-f2b8-4851-b035-a7a47031f2ec>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00240-ip-10-147-4-33.ec2.internal.wa... |
Can anyone confirm formula (combinations)
matt grime
Are the sets into which we partition indistinguishable? Ie if we partition n into n sets there are n! ways of doing this if we consider order, or just 1 if we say that they are all equivalent. I'm
guessing fromyour formula order doesn't matter.
Your guess is correct ... | {"url":"http://www.physicsforums.com/showthread.php?t=68762","timestamp":"2014-04-20T14:21:48Z","content_type":null,"content_length":"29643","record_id":"<urn:uuid:b887b843-8674-493a-a896-f7b821bfe056>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00421-ip-10-147-4-33.ec2.internal.wa... |
Dockweiler, CA Statistics Tutor
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Differentiability of Audio
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Differentiability of Audio Signals
As mentioned in §3.6, every audio signal can be regarded as infinitely differentiable due to the finite bandwidth of human hearing. That is, given any audio signal Fourier transform i... | {"url":"https://ccrma.stanford.edu/~jos/mdft/Differentiability_Audio_Signals.html","timestamp":"2014-04-16T23:23:30Z","content_type":null,"content_length":"12624","record_id":"<urn:uuid:e1122bfc-9f4b-4539-b6b2-b059d337a2ee>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00341-ip-10-147... |
Each correctional facility in a certain state has the same
abhijit_sen wrote:
Statement 1:
Tells us range but no concrete value, so insufficient.
Statement 2:
Tells us about female interns, but does not say anything about male interns.
Combining both statements:
Does not give us any fruitful information either. Because... | {"url":"http://gmatclub.com/forum/each-correctional-facility-in-a-certain-state-has-the-same-60725.html","timestamp":"2014-04-19T15:31:08Z","content_type":null,"content_length":"136410","record_id":"<urn:uuid:555846b9-bf8d-4525-bf06-e51e1a63f7fe>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-2014041... |
[Numpy-discussion] Concatenating Arrays to make Views
Benjamin Haynor bhaynor@hotmail....
Mon Dec 15 13:39:41 CST 2008
I was wondering if I can concatenate 3 arrays, where the result will be a view of the original three arrays, instead of a copy of the data. For example, suppose I write the following
import numpy as n... | {"url":"http://mail.scipy.org/pipermail/numpy-discussion/2008-December/039234.html","timestamp":"2014-04-19T14:51:03Z","content_type":null,"content_length":"3700","record_id":"<urn:uuid:41348cbd-e81a-44e7-b664-9511fe04e31e>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00329-ip-10-147... |
Infinite/Maclaurin Series problem!!
February 20th 2013, 04:32 PM
Infinite/Maclaurin Series problem!!
Evaluate the following: Riemann Sum k=2 to infinity, 2/(k^2 -1)
I'm not really sure where to begin...I rearranged the equation to -2/( 1 - k^2) and used the Maclaurin Series for 1/(1 - x) to obtain -2 * k^(2n). ... | {"url":"http://mathhelpforum.com/calculus/213501-infinite-maclaurin-series-problem-print.html","timestamp":"2014-04-18T17:26:23Z","content_type":null,"content_length":"4401","record_id":"<urn:uuid:3908fec9-2afe-401d-b351-068a6cb018ee>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-002... |
Summary: STATISTICAL INVERSION FROM REFLECTIONS OF SPHERICAL
M. ASCH , W. KOHLER y, G. PAPANICOLAOU z, M. POSTELx AND B. WHITE
1. Introduction. Waves re ected by randomly layered media are very noisy be-
cause of the intense multiple scattering they undergo before returning to the surface.
As a result, it is di cult to... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/389/1083792.html","timestamp":"2014-04-17T08:01:36Z","content_type":null,"content_length":"8975","record_id":"<urn:uuid:3a530435-9f26-4dd5-9ca1-86b9756c7291>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00109-ip-10-147-... |
• description:
sddszerofind finds the locations of zeroes in a single column of an SDDS file. This is done by finding successive rows for which a sign change occurs in the ``dependent column'', or any row for
which an exact zero is present in this column. For each of the ``independent columns'', the location of... | {"url":"http://www.aps.anl.gov/Accelerator_Systems_Division/Accelerator_Operations_Physics/manuals/SDDStoolkit/node106.html","timestamp":"2014-04-21T05:51:54Z","content_type":null,"content_length":"6197","record_id":"<urn:uuid:174229aa-c810-452a-9586-7b31b9046ebd>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/w... |
Mplus Discussion >> Why do fit indices change?
Pamela Kaliski posted on Tuesday, March 17, 2009 - 6:07 am
I conducted mixture modeling on 5 subscale scores 2 ways:
1. Using raw subscale scores.
2. re-scaling the scores by dividing them by the number of items on the subscale, because there was a different number of item... | {"url":"http://www.statmodel.com/cgi-bin/discus/discus.cgi?pg=prev&topic=13&page=4123","timestamp":"2014-04-16T08:28:24Z","content_type":null,"content_length":"21219","record_id":"<urn:uuid:6ccc9e32-688b-4ea3-888c-efc5d5dd0f35>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00435-ip-1... |
[SciPy-User] Strange behavior of sph_jn
[SciPy-User] Strange behavior of sph_jn
ZIEGLER Yann (ETU EOT) yann.ziegler@etu.unistra...
Tue Apr 10 08:49:50 CDT 2012
It seems that the bug I have with sph_jn for some values is due to scipy
itself. I finded someone having the same kind of trouble on
projects.scipy.org/scipy (... | {"url":"http://mail.scipy.org/pipermail/scipy-user/2012-April/032035.html","timestamp":"2014-04-18T08:21:44Z","content_type":null,"content_length":"3492","record_id":"<urn:uuid:cdb37e30-d30f-4a9c-baf4-d0f328607ebe>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00431-ip-10-147-4-33.ec... |
Diffraction of Light by a Two-Dimensional Lattice of Spheres
International Journal of Optics
Volume 2012 (2012), Article ID 901970, 10 pages
Research Article
Diffraction of Light by a Two-Dimensional Lattice of Spheres
^1Département de Mathématiques et de Statistique, Université de Moncton, Moncton, NB, Canada E1A 3E9
... | {"url":"http://www.hindawi.com/journals/ijo/2012/901970/","timestamp":"2014-04-20T09:29:02Z","content_type":null,"content_length":"773741","record_id":"<urn:uuid:cc51f7f1-aae7-4e04-9f13-6d2c14cfd5ec>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00251-ip-10-147-4-33.ec2.internal.warc.... |
help with simplifying (3/8y + 5/6x) / 5/12xy [Archive] - Free Math Help Forum
06-03-2009, 03:37 AM
Just joined this forum and I'm hoping to get some help. I am home educating three boys and maths is definitely not my forte. In fact, I was terrible at maths at school (always wanted to know why
things were done in a cer... | {"url":"http://www.freemathhelp.com/forum/archive/index.php/t-61455.html","timestamp":"2014-04-19T12:14:15Z","content_type":null,"content_length":"9750","record_id":"<urn:uuid:0c655bcc-d7f9-459a-b64b-24fbdf1e7516>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00542-ip-10-147-4-33.ec2... |
test_that {testthat}
A test encapsulates a series of expectations about small, self-contained set of functionality. Each test is contained in a context and contains multiple expectation generated by expect_that.
test_that(desc, code)
test name. Names should be kept as brief as possible, as they are often used as li... | {"url":"http://www.inside-r.org/packages/cran/testthat/docs/test_that","timestamp":"2014-04-17T01:15:04Z","content_type":null,"content_length":"16556","record_id":"<urn:uuid:be2f8d9c-e38b-468c-9136-a3d7fa202073>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00141-ip-10-147-4-33.ec2.i... |
Journal of the Optical Society of America A
I show how computer algebra can be of material help in determining the potential quality of various zoom lens arrangements. One fortuitous result of this work is a proof that, when the object is kept
at infinity, it is possible in principle to design zoom lenses for which all... | {"url":"http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-16-1-198","timestamp":"2014-04-19T23:46:27Z","content_type":null,"content_length":"67217","record_id":"<urn:uuid:db82a3ef-62a8-47da-b44e-f02cfaa5243b>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00256-ip-10-147-4-33... |
Re: st: Graphing quadratic relationship
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Re: st: Graphing quadratic relationship
From Austin Nichols <austinnichols@gmail.com>
To statalist@hsphsun2.harvard.edu
Subject Re: st: Graphing quadratic relationship
Date Tue, 22 Sep 2009 08:1... | {"url":"http://www.stata.com/statalist/archive/2009-09/msg00870.html","timestamp":"2014-04-17T21:33:38Z","content_type":null,"content_length":"9695","record_id":"<urn:uuid:aa1a9aaf-6e9c-48d6-8dad-dd637f46c13b>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00377-ip-10-147-4-33.ec2.int... |
CIVL 321
Course Title and Number
CE 150 - Fluid Mechanics
Catalog Description
Hydrostatics, continuity, momentum, work-energy, viscous effects, dimensional analysis and similitude, flow in closed conduits, drag on objects.
MATH 007C, C E 035, ECE 090 or C E 020 (may be taken concurrently), M E 135 (concurrent enrollmen... | {"url":"http://www.csuchico.edu/ce/bs_civil_engineering/civl_321.shtml","timestamp":"2014-04-21T04:39:46Z","content_type":null,"content_length":"16017","record_id":"<urn:uuid:b98d943e-4ff8-4052-b80c-ed0c81510433>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00148-ip-10-147-4-33.ec2.... |
Hilbert structure on the ADM phase space
Seminar Room 1, Newton Institute
The Einstein equations can be formulated as a densely defined flow on a phase space modelled on the Hilbert space H2 x H1 with appropriate decay conditions. I will show that the constraint system
determines a smooth Hilbert submanifold and the AD... | {"url":"http://www.newton.ac.uk/programmes/GMR/seminars/2005121210001.html","timestamp":"2014-04-17T09:52:30Z","content_type":null,"content_length":"4791","record_id":"<urn:uuid:4a5cb3da-6567-449d-b35d-c512a39f05e5>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00566-ip-10-147-4-33.e... |
GED Math Practice Test
GED Math Practice PowerScore - Now You Will Pass Your GED Math Test!
Certification Provider: American Council on Education (ACE)
Exam Section: GED Math
Exam Name: GED
Package includes GED Math Official Tests, study guide and standard Practice Tests
Standard Practice Tests Includes:778 Q&A
U... | {"url":"http://gedpracticetestsonlines.com/ged-math.htm","timestamp":"2014-04-18T00:31:22Z","content_type":null,"content_length":"11247","record_id":"<urn:uuid:2eef21a1-5085-41c1-8a58-5d5260173dfe>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00071-ip-10-147-4-33.ec2.internal.warc.g... |
Summary: The PSTH response to spike input as predicted by an expansion of a
population equation
Models of the activity of a population of many neurons are a central
component for the understanding of cortical dynamics.
An equation that describes the population-averaged firing rate of a
network of Poisson neurons with a... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/237/2201281.html","timestamp":"2014-04-21T15:51:05Z","content_type":null,"content_length":"8413","record_id":"<urn:uuid:9616b7e1-d333-4027-887e-0a8c3b105c1f>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00119-ip-10-147-... |
Properties of Decimals
Numbers can be of many forms, decimal number is one of such forms. In Math Decimals holds a very important Position. Numbers which contain decimal Point are known as Decimal Numbers. All whole
Numbers are decimal numbers but all decimal numbers are not whole numbers. Only some part of Decimal num... | {"url":"http://math.tutorcircle.com/number-sense/properties-of-decimals.html","timestamp":"2014-04-21T14:41:22Z","content_type":null,"content_length":"21017","record_id":"<urn:uuid:3ca3bd53-05ce-4c55-b3a7-4777c4bca87e>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00433-ip-10-147-4-3... |
explain the distance
Yes, there is some debate over how many lengths (laps) is a mile.
I always work to 64 in a 25 metre pool, and 76 in a 25 yard pool, thats what my Dad always taught me!
To me, a lap is one length of a pool, but I understand that the definition in the English Dictionary would tell me I am wrong! | {"url":"http://community.active.com/thread/1479/explain-the-distance","timestamp":"2014-04-18T20:09:18Z","content_type":null,"content_length":"158351","record_id":"<urn:uuid:ece8b050-60ed-4ffd-920c-f867d8de116e>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00228-ip-10-147-4-33.ec2.in... |
Cryptography -- Block Ciphers
Anita Jones
CS451 Information Security
Copyright(C) Anita Jones
terms and principles
Claude Shannon
Feistel cipher
September, 2006
A few terms
block cipher
block of plaintext is treated as a whole &
used to produce ... | {"url":"http://www.docstoc.com/docs/40229291/Cryptography----Block-Ciphers","timestamp":"2014-04-24T04:38:17Z","content_type":null,"content_length":"65038","record_id":"<urn:uuid:f000aea6-d8cd-46e7-b9d5-775d8fbbee13>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00095-ip-10-147-4-33.e... |
Shodor > Interactivate > Textbooks > Mathematics in Context Grade 5 > Fairness
Mathematics in Context Grade 5
Taking A Chance
Lesson • Activity • Discussion • Worksheet • Show All
Lesson (...)
Activity (...)
A Better Fire!!
Activity: Students run a simulation of how a fire will spread through a stand of trees, l... | {"url":"http://www.shodor.org/interactivate/textbooks/section/402/","timestamp":"2014-04-16T19:48:15Z","content_type":null,"content_length":"16369","record_id":"<urn:uuid:c3c2f489-d1e7-499a-95c3-ca739e277200>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00625-ip-10-147-4-33.ec2.inte... |
Revista Brasileira de Medicina do Esporte
Services on Demand
Related links
Print version ISSN 1517-8692
Rev Bras Med Esporte vol.10 no.2 Niterói Mar./Apr. 2004
... | {"url":"http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-86922004000200002&lng=en&nrm=iso&tlng=en","timestamp":"2014-04-19T05:25:21Z","content_type":null,"content_length":"60361","record_id":"<urn:uuid:34cb9e2f-1572-4422-b09d-444961fe18f6>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-2... |
The Perils of Planet-Hopping
Watch me as I gravitate (hahahahaha). -Gorillaz
Gravity — unbelievably — is the weakest force of all. But if you get enough mass together, gravity will overwhelm even the strongest outside influence. A simple case-in-point? You take a rock that’s
massive enough, and gravity will crush i... | {"url":"http://scienceblogs.com/startswithabang/2009/12/28/the-perils-of-planet-hopping/","timestamp":"2014-04-21T12:42:42Z","content_type":null,"content_length":"85828","record_id":"<urn:uuid:3342210c-6ba0-4b24-932e-8b8bdb4efc76>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00265-i... |
The Statistical Significance Testing Debate: A Critical Analysis of the Controversy and Solutions
The Statistical Significance Testing Controversy:
A Critical Analysis
PSCH 548 – Graduate Seminar in Methods and Measurement
Fall 2003 | Call # 09744
Instructor: R. Chris Fraley | fraley@uic.edu
Location & Time... | {"url":"http://www.uic.edu/classes/psych/psych548/fraley/","timestamp":"2014-04-16T19:07:02Z","content_type":null,"content_length":"31512","record_id":"<urn:uuid:ee219273-f460-481a-b0a6-250eb15d8170>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00488-ip-10-147-4-33.ec2.internal.warc... |
Class number measuring the failure of unique factorization
up vote 23 down vote favorite
The statement that the class number measures the failure of the ring of integers to be a ufd is very common in books. ufd iff class number is 1. This inspires the following question:
Is there a quantitative statement relating the c... | {"url":"http://mathoverflow.net/questions/10934/class-number-measuring-the-failure-of-unique-factorization?sort=newest","timestamp":"2014-04-18T13:29:13Z","content_type":null,"content_length":"74874","record_id":"<urn:uuid:af3bdd68-36f0-454b-8589-4b5551167615>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/... |
[STILL OPEN] Why are two notions of Gaussian curvature are the same - what is the simplest & most didactic proof?
up vote 22 down vote favorite
This question is still wide open - all of the answers so far rely on magical calculations. I've only accepted an answer because, by bounty rules, otherwise one would be accepte... | {"url":"http://mathoverflow.net/questions/33405/still-open-why-are-two-notions-of-gaussian-curvature-are-the-same-what-is-th/34164","timestamp":"2014-04-19T02:10:17Z","content_type":null,"content_length":"108275","record_id":"<urn:uuid:9e291c6c-de1e-4cd1-85bc-5d8983cc986c>","cc-path":"CC-MAIN-2014-15/segments/139760953... |
Summary: COLLOQUIUM
University of Regina
Department of Mathematics and Statistics
Speaker: Andrea Burgess (University of Ottawa)
Title: Cycle decompositions of some families of graphs
Time & Place: Friday, November 13, 3:30 - 4:30 pm, CL 435
A graph G is said to be decomposable into cycles of length k if its edges
may ... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/386/2863563.html","timestamp":"2014-04-17T17:07:06Z","content_type":null,"content_length":"8218","record_id":"<urn:uuid:7f1b69e3-8c6a-4f58-960a-2ea7a0fa5be1>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00535-ip-10-147-4... |
Adding and Subtracting worksheets and printables.
Addition, Subtraction, Multiplication and Division Worksheets
A variety of printable worksheets in adding and subtraction with regrouping (carrying) and without. Essential to improving the basic skill area.
Basic Math Worksheets
Basic Math Worksheets. Worksheets for wor... | {"url":"http://math.about.com/od/addingsubtracting/","timestamp":"2014-04-18T15:37:54Z","content_type":null,"content_length":"38285","record_id":"<urn:uuid:cd21b6b4-98a2-499f-9ec2-3f23cc9cf256>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00168-ip-10-147-4-33.ec2.internal.warc.gz"} |
Benchmarking the data mining algorithms with adaptive neuro fuzzy inference system in gsm churn management
Benchmarking the Data Mining Algorithms with
Adaptive Neuro-Fuzzy Inference System
... | {"url":"http://www.docstoc.com/docs/136635681/Benchmarking-the-data-mining-algorithms-with-adaptive-neuro-fuzzy-inference-system-in-gsm-churn-management","timestamp":"2014-04-21T02:15:08Z","content_type":null,"content_length":"93972","record_id":"<urn:uuid:cfe9d4bd-8a2f-4d28-8de1-02f005dc20b2>","cc-path":"CC-MAIN-2014-... |
Roxbury, MA Math Tutor
Find a Roxbury, MA Math Tutor
...I've spent many hours daily in Bible studies for over ten years and have learned many different methods for doing so. I've also studied under many of the most respected Bible scholars. I hold
a full professorship in graduate business studies at an online unive... | {"url":"http://www.purplemath.com/roxbury_ma_math_tutors.php","timestamp":"2014-04-21T11:01:44Z","content_type":null,"content_length":"23911","record_id":"<urn:uuid:5c9ae77e-6925-437e-809e-7af9d887eab5>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00133-ip-10-147-4-33.ec2.internal.w... |
Cyclotomic Fields....
May 5th 2009, 11:34 AM #1
Junior Member
Mar 2009
Cyclotomic Fields....
Hi guys!
Does Q(Zeta) = Q(Zeta_12), where Zeta is ANY 12th roots of unity & Zeta_12 = cos(2pi/12)+isin(2pi/12).
In fact, does the general case where we have n instead of 12 hold?
I managed to prove that Q(Ze... | {"url":"http://mathhelpforum.com/advanced-algebra/87642-cyclotomic-fields.html","timestamp":"2014-04-20T16:01:41Z","content_type":null,"content_length":"42987","record_id":"<urn:uuid:f0caf90f-1f8c-4ff6-adad-a96ff90a09a4>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00236-ip-10-147-4... |
Reversible skew laurent polynomial rings and deformations of poisson automorphisms
Jordan, D.A. and Sasom, N. (2009) Reversible skew laurent polynomial rings and deformations of poisson automorphisms. Journal of Algebra and Its Applications, 8 (5). pp. 733-757. ISSN 0219-4988
Full text available as:
Download (299Kb)
... | {"url":"http://eprints.whiterose.ac.uk/10226/","timestamp":"2014-04-18T08:02:54Z","content_type":null,"content_length":"21455","record_id":"<urn:uuid:545b79a5-a41d-4e50-ac06-020b4adf441d>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00471-ip-10-147-4-33.ec2.internal.warc.gz"} |
Help solve, I got quiz tomorow on this stuff need quick help!
July 8th 2009, 10:10 PM #1
Apr 2009
Help solve, I got quiz tomorow on this stuff need quick help!
Allright so tomorow I got a quiz on this stuff. I just need someone to show me step by step how to do this!
$<br /> \frac{bx}{a}+\frac{1}{5}=2x$ SOL... | {"url":"http://mathhelpforum.com/algebra/94693-help-solve-i-got-quiz-tomorow-stuff-need-quick-help.html","timestamp":"2014-04-19T15:41:10Z","content_type":null,"content_length":"88514","record_id":"<urn:uuid:65d0a11b-8b60-46c0-890a-08dce40386d9>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416... |
COMP 557 - Fundamentals of Computer Graphics
General Information
Course Outline outlineComp557Fall2010.pdf
Web Page www.cs.mcgill.ca/~kry/comp557F10
Lectures 2:25 PM - 3:55 PM, Mondays and Wednesdays
Location Trottier Building 2120
Credits 3
Instructor Paul Kry... | {"url":"http://www.cs.mcgill.ca/~kry/comp557F10/","timestamp":"2014-04-20T15:53:55Z","content_type":null,"content_length":"36580","record_id":"<urn:uuid:dd3369ee-2cae-4176-ab7f-b910bf26f569>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00000-ip-10-147-4-33.ec2.internal.warc.gz"} |
Benford's Law
Frank Benford, a man whose curiosity about a book inspired a bizarre discovery. Benford’s Law, as it is now known, reveals a cosmic preference for certain numbers. Then Darrell D. Dorrell, a
forensic accountant, describes how he uses Benford’s Law to bust crooks.
Frank Benford, a man whose cur... | {"url":"http://dylanmhughes.com/post/18563031121/benfords-law","timestamp":"2014-04-18T14:02:50Z","content_type":null,"content_length":"19906","record_id":"<urn:uuid:790d5b22-0fda-49b9-9b8f-4eacd37d5411>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00245-ip-10-147-4-33.ec2.internal.w... |
Scientists find clues to the formation of Fibonacci spirals in nature
Conical shapes with irregularities produce parastichous spiral ‘X’ patterns, such as on the scientists’ microstructure at left, and a strawberry at right. Credit: Li, et al. ©2007 Applied Physics
While the aesthetics and symmetry of Fibonacci spiral ... | {"url":"http://phys.org/news97227410.html","timestamp":"2014-04-19T15:06:16Z","content_type":null,"content_length":"72182","record_id":"<urn:uuid:7d4cc7be-30d1-4708-85f5-eb1310e244b8>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00286-ip-10-147-4-33.ec2.internal.warc.gz"} |
Problem solving:for 3rd grade
Number of results: 70,224
Problem solving:for 3rd grade
write a real-world problem involving multiple steps, then solve your problem
Thursday, October 25, 2012 at 10:29pm by Phyllis
Problem solving:for 3rd grade
Write a real-world problem that you can solve by adding or subtracting.Then gi... | {"url":"http://www.jiskha.com/search/index.cgi?query=Problem+solving%3Afor+3rd+grade","timestamp":"2014-04-21T15:31:05Z","content_type":null,"content_length":"36749","record_id":"<urn:uuid:b7a637b4-772a-4935-aff3-c694f50cee40>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00422-ip-10... |
Is Quantum designed to automatically check for
multiple comparisons / correct for false positives when stat testing?
Technote (troubleshooting)
Multiple comparisons corrections would occur within the Quantum
tables. If you are doing hundreds of mean tests using 95% and 90% as
your criteria, just by chance 5% to 10% wil... | {"url":"http://www-01.ibm.com/support/docview.wss?uid=swg21620621","timestamp":"2014-04-18T20:52:46Z","content_type":null,"content_length":"21115","record_id":"<urn:uuid:a6ec7600-319a-409b-8b6a-78960ec86565>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00247-ip-10-147-4-33.ec2.intern... |
How to Succeed in Mathematics
To be successful in any mathematics class you take:
• Attend class on a regular basis. Statistics prove that those students who attend class regularly from the first day have much greater success since learning mathematics is a step by step process.
Every time you miss class, you are... | {"url":"http://www.smc.edu/AcademicPrograms/Mathematics/Pages/How-to-Succeed-in-Mathematics.aspx","timestamp":"2014-04-21T02:03:52Z","content_type":null,"content_length":"43045","record_id":"<urn:uuid:43cb80f9-c32d-4923-acea-3cc3ded649c5>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219... |
Lindale, GA Algebra 1 Tutor
Find a Lindale, GA Algebra 1 Tutor
...Most importantly, I am very patient and know when a method is not working and when a student is "shutting-down." This is a subject that I have studied for more than 30 years. I have
investigated or read most every article written on the subject. I cu... | {"url":"http://www.purplemath.com/Lindale_GA_algebra_1_tutors.php","timestamp":"2014-04-16T22:41:25Z","content_type":null,"content_length":"23959","record_id":"<urn:uuid:35b023f5-c3cc-4206-8424-a5dd76014ea3>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00369-ip-10-147-4-33.ec2.intern... |
Can You Travel Faster Than The Speed Of Light? New Research Says Maybe
Published on October 11th, 2012 | by James Ayre
Can You Travel Faster Than The Speed Of Light? New Research Says Maybe
Mathematicians have now extended Einstein’s theory of special relativity to include faster-than-light travel.
Einstein’s theory sa... | {"url":"http://planetsave.com/2012/10/11/can-you-travel-faster-than-the-speed-of-light-new-research-says-maybe/","timestamp":"2014-04-19T09:42:45Z","content_type":null,"content_length":"61412","record_id":"<urn:uuid:07b3b652-6d8f-49be-af7f-ae39736a9464>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN... |
Solving Equations for Expressions Examples Page 1
Solve for 3x:
9x + 4y = y^2 - 2
First, we get the x terms by themselves:
9x = y^2 - 2 - 4y
Because we have 9x and we want 3x, we need to divide both sides by 3:
That's all we need to do. Our solution is cluttered, but it is a solution nevertheless. | {"url":"http://www.shmoop.com/equations-inequalities/solving-equations-expressions-examples.html","timestamp":"2014-04-21T02:01:01Z","content_type":null,"content_length":"37132","record_id":"<urn:uuid:085ec3b1-ce96-4b05-8847-4b0cc42b50c0>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219... |
Forces of interest
September 1st 2009, 06:33 PM #1
Junior Member
Sep 2009
Forces of interest
Tawny makes a deposit into a bank account that credits interest at a nominal interest rate of 10% per year, compounded semiannually. At the same time, Fabio deposits 1000 into a different bank
account, which is cred... | {"url":"http://mathhelpforum.com/business-math/100164-forces-interest.html","timestamp":"2014-04-19T19:42:51Z","content_type":null,"content_length":"32502","record_id":"<urn:uuid:b6182f9b-1131-4624-96eb-8f3416bfe44e>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00474-ip-10-147-4-33.... |
A quiz on probability from the Wall Street Journal
A Numbers Guy Quiz on Probability
, from (you guessed it!)
The Numbers Guy
at the
Wall Street Journal
. The post gives an eight-question quiz derived from problems in Leonard Mlodinow's new book,
The Drunkard's Walk: How Randomness Rules Our Lives
. I claim that the pe... | {"url":"http://godplaysdice.blogspot.com/2008/04/quiz-on-probability-from-wall-street.html","timestamp":"2014-04-21T00:04:16Z","content_type":null,"content_length":"97382","record_id":"<urn:uuid:48ed762c-e1c6-435e-b39e-98fb18b763d8>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00321-... |
Math Help
February 2nd 2010, 12:45 PM #1
Feb 2010
My Son
It has been a great many years since I did any algebra, now my son hits me with this:-
x squared + 2x = y find x and y
x squared + 2x = 48 find x
For the second one, you could write
The factors of 48 that differ by 2 are 6 and 8, so x=6
... | {"url":"http://mathhelpforum.com/algebra/126838-my-son.html","timestamp":"2014-04-16T20:04:20Z","content_type":null,"content_length":"39296","record_id":"<urn:uuid:59316ced-0991-40db-9627-3e470a37b863>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00639-ip-10-147-4-33.ec2.internal.wa... |
Tuesday's Child
Tuesday’s Child
I came across this little teaser this morning and thought I’d share it here.
I have two children, one of whom is a son born on a Tuesday. What is the probability that I have two boys?
Please select an answer from the possibilities listed in the poll below.
This is not a new problem a... | {"url":"http://telescoper.wordpress.com/2013/07/05/tuesdays-child/","timestamp":"2014-04-18T00:30:01Z","content_type":null,"content_length":"76839","record_id":"<urn:uuid:4d45294d-058c-4400-ad83-21019095eebc>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00353-ip-10-147-4-33.ec2.inte... |
Continuous Beams with Shear Deflections
The Macaulay Spreadsheet has now been modified to optionally include shear deflections, as well as a new option to output support reactions, and fixes to minor bugs.
The revised spreadsheet (including full open source code) can be downloaded from:
The screenshots below show an ex... | {"url":"http://newtonexcelbach.wordpress.com/2011/12/31/continuous-beams-with-shear-deflections/","timestamp":"2014-04-16T21:51:26Z","content_type":null,"content_length":"87553","record_id":"<urn:uuid:379f5154-34a5-4b35-bce2-6a741c14b96f>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010... |
East Chicago Algebra 1 Tutor
...I have several years of experience as a teacher which required effective public speaking for many hundreds of hours. As the manager of a business for several years, both marketing and employee
management required effective public speaking. Several years of group tutoring and many yea... | {"url":"http://www.purplemath.com/East_Chicago_algebra_1_tutors.php","timestamp":"2014-04-18T23:42:37Z","content_type":null,"content_length":"24206","record_id":"<urn:uuid:4955f04c-04b5-4964-9fc2-b6bca3601e9f>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00443-ip-10-147-4-33.ec2.int... |
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Help please! I will become a fan! picture attached below!
• ... | {"url":"http://openstudy.com/updates/511085a5e4b0d9aa3c48221b","timestamp":"2014-04-18T00:34:16Z","content_type":null,"content_length":"96724","record_id":"<urn:uuid:e82fa9d2-d0e7-4d62-ab92-03b859547d26>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00430-ip-10-147-4-33.ec2.internal.... |
quantum electrodynamics
quantum electrodynamics (QED), quantum field theory that describes the properties of electromagnetic radiation and its interaction with electrically charged matter in the framework of quantum theory.
QED deals with processes involving the creation of elementary particles from electromagnetic ene... | {"url":"http://www.infoplease.com/encyclopedia/science/quantum-electrodynamics.html","timestamp":"2014-04-18T09:18:03Z","content_type":null,"content_length":"31383","record_id":"<urn:uuid:1910a92c-45d0-41af-a9c4-1090205d4c24>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00417-ip-10-... |
Does an object stop when reversing direction?
When you toss a ball up, it has negative upward acceleration, then it has positive downward acceleration.
Does it “stop” to change direction, or does it go directly from moving up to down without ever pausing? It seemed to me as if it would have to stop rising to start fall... | {"url":"http://www.physicsforums.com/showthread.php?t=582857","timestamp":"2014-04-20T11:28:23Z","content_type":null,"content_length":"55144","record_id":"<urn:uuid:a0b7fa10-02bc-4abf-96a7-6afa588c949c>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00191-ip-10-147-4-33.ec2.internal.w... |
ve got the power! (Inspired by Project Euler problem 29)
Problem 1106. I've got the power! (Inspired by Project Euler problem 29)
Consider all integer combinations of a^b and b^a for the integer values 2 ≤ a ≤ 4 and 2 ≤ b ≤ 5:
2^2=4, 2^3=8, 2^4=16, 2^5=32
3^2=9, 3^3=27, 3^4=81, 3^5=243
4^2=16, 4^3=64... | {"url":"http://www.mathworks.com/matlabcentral/cody/problems/1106-i-ve-got-the-power-inspired-by-project-euler-problem-29","timestamp":"2014-04-18T06:14:30Z","content_type":null,"content_length":"36581","record_id":"<urn:uuid:f1abb236-bfbc-4639-8c84-a558fcbc7cee>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/wa... |
Joe Wakeling's brain games
In this post I thought I’d take you through the start-to-finish process of implementing and optimizing one of the new functions in Dgraph — from a fairly straight copy of the pseudo-code in a
research paper, to its form in the repository today. The function in question is dgraph.metric.betwee... | {"url":"http://braingam.es/","timestamp":"2014-04-16T04:12:29Z","content_type":null,"content_length":"419080","record_id":"<urn:uuid:8ffb8b14-d295-4d57-bf74-cc8dd764d2de>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00057-ip-10-147-4-33.ec2.internal.warc.gz"} |
33: Special functions
[Search][Subject Index][MathMap][Tour][Help!]
Special functions are just that: specialized functions beyond the familiar trigonometric or exponential functions. The ones studied (hypergeometric functions, orthogonal polynomials, and so on) arise
very naturally in areas of analysis, number theor... | {"url":"http://www.math.niu.edu/~rusin/known-math/index/33-XX.html","timestamp":"2014-04-20T08:31:48Z","content_type":null,"content_length":"10754","record_id":"<urn:uuid:745ebca4-e185-4079-a34c-30c776ed954c>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00561-ip-10-147-4-33.ec2.inter... |
Preview of some Galois theory
For: Math 421 at Northern Illinois University
From: Beachy/Blair, Abstract Algebra, Second Edition
Excerpted from Sections 8.1 and 8.4
If your viewer can't handle subscripts, try the old version.
Historically, the problem of solving polynomial equations by radicals has motivated a great de... | {"url":"http://www.math.niu.edu/~beachy/courses/algebra/galois_preview.html","timestamp":"2014-04-19T09:34:16Z","content_type":null,"content_length":"9271","record_id":"<urn:uuid:b9c5bac4-1f72-44c4-bcfa-fe178040d624>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00421-ip-10-147-4-33.... |
Langhorne Algebra 2 Tutor
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...I have experience tutoring students in English for SATs, and for high school and college essay writing. I am an accounting major at Fox School of Business at Temple University. I received an A
grade in financial accounting and will be taking intermediate... | {"url":"http://www.purplemath.com/Langhorne_Algebra_2_tutors.php","timestamp":"2014-04-17T19:37:28Z","content_type":null,"content_length":"23959","record_id":"<urn:uuid:844a73e2-697e-445c-94c2-6a1afedda33d>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00510-ip-10-147-4-33.ec2.intern... |
Enhancing transfer in reinforcement learning by building stochastic models of robot actions
Results 1 - 10 of 31
, 1996
"... Lazy learning methods provide useful representations and training algorithms for learning about complex phenomena during autonomous adaptive control of complex systems. This paper surveys ways
in... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=891623","timestamp":"2014-04-24T10:07:07Z","content_type":null,"content_length":"41364","record_id":"<urn:uuid:f959a5bc-e791-4f45-91a1-4432d25ad727>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00142-ip-10-147-4-33.ec2.internal.war... |
Optical amplification
From Scholarpedia
There exists several physical processes to achieve optical amplification, namely the action of enhancing or boosting the power of an electromagnetic (EM) light wave. These processes can be grouped
into three fundamental categories: laser, scattering (Raman and Brillouin) and para... | {"url":"http://www.scholarpedia.org/article/Optical_amplification","timestamp":"2014-04-19T15:17:29Z","content_type":null,"content_length":"107117","record_id":"<urn:uuid:c152e5b0-4249-48b3-bf5b-aab446441541>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00534-ip-10-147-4-33.ec2.inter... |
Module 1.5: Testing Hypothesis
Module 1.5 Notes
"Testing Hypothesis"
Module 1.4 covered one of the two classic methods of inferential stati... | {"url":"http://ruby.fgcu.edu/courses/tharring/80890/m1_5.htm","timestamp":"2014-04-19T01:56:47Z","content_type":null,"content_length":"38848","record_id":"<urn:uuid:34faf5c6-b51a-4b3e-b6fa-9ccb4a5a0e72>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00439-ip-10-147-4-33.ec2.internal.wa... |
CoqParam is the starting point of an implementation of a generator of "theorems for free" in Coq, based on parametricity theory. For the moment, it is made up with a tactic and a vernacular command
that, given a closed Coq term and its type, compute:
• the parametricity relation generated by the type;
• a proof tha... | {"url":"http://www.lix.polytechnique.fr/~keller/Recherche/coqparam.html","timestamp":"2014-04-20T11:08:13Z","content_type":null,"content_length":"3587","record_id":"<urn:uuid:d8dcdc91-e64a-4eeb-9b5a-1b79fdfd785f>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00333-ip-10-147-4-33.ec2.... |
Logarithm proofs
May 7th 2007, 10:01 AM #1
May 2007
Logarithm proofs
Can anyone help with these proofs?
Prove the following formulas for changing from one base to another:
a) log_b x = (log_b a)(log_a x)
b) log_b x = (log_a x)/(log_a b)
Thank so much
Log_a x = P
log_b x = Q
log_b a =... | {"url":"http://mathhelpforum.com/algebra/14675-logarithm-proofs.html","timestamp":"2014-04-17T08:28:22Z","content_type":null,"content_length":"36510","record_id":"<urn:uuid:a6bde046-67a1-448d-aa14-aed47a7fce32>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00474-ip-10-147-4-33.ec2.in... |
This Article
Bibliographic References
Add to:
An Algorithm-Based Error Detection Scheme for the Multigrid Method
September 2003 (vol. 52 no. 9)
pp. 1089-1099
ASCII Text ... | {"url":"http://www.computer.org/csdl/trans/tc/2003/09/t1089-abs.html","timestamp":"2014-04-20T13:45:14Z","content_type":null,"content_length":"56481","record_id":"<urn:uuid:f8738072-a7cb-43a0-a1b6-a558027e2ad5>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00600-ip-10-147-4-33.ec2.in... |
Finding minimum-cost circulations by cancalling negative cycles
"... We observe that the classical maximum flow problem in any directed planar graph G can be reformulated as a parametric shortest path problem in the oriented dual graph G ∗. This reformulation
immediately suggests an algorithm to compute maximum flows, ... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=10149864","timestamp":"2014-04-17T14:07:48Z","content_type":null,"content_length":"18431","record_id":"<urn:uuid:7bb13312-0830-4957-a683-7ffa0b9133fe>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00550-ip-10-147-4-33.ec2.internal.w... |
CDS 270-4: Distributed Kalman Filtering
From MurrayWiki
This page contains notes on a lecture that I gave in CDS 270-4, Estimation and Control over Wireless Sensor Networks in Spring 2008.
Lecture Outline
1. Problem setup 3. Distributed estimation and fusion
□ Definit... | {"url":"http://www.cds.caltech.edu/~murray/wiki/index.php/CDS_270-4:_Distributed_Kalman_Filtering","timestamp":"2014-04-20T16:53:52Z","content_type":null,"content_length":"17207","record_id":"<urn:uuid:f989a965-c020-4692-babe-3fd8722fd234>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-2014041600521... |
An Example on - -
Please install Math Player to see the Math Symbols properly
Attempt following question by selecting a choice to answer.
Hanna has a cloth of length
9 ft.
She plans to cut
4 ft 2 in.
long piece from it. Find the length of the remaining cloth.
ccc ccc
View Solution Steps | {"url":"http://www.icoachmath.com/solvedexample/sampleworksheet.aspx?process=/__cstlqvxbefxdxbgdedxkjjjexdbkkxb&.html","timestamp":"2014-04-18T10:35:28Z","content_type":null,"content_length":"41352","record_id":"<urn:uuid:fa4cbfc0-7ec7-41d2-9251-4b9f9e2b19ca>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/C... |
La Crosse, IN Math Tutor
Find a La Crosse, IN Math Tutor
...Unfortunately that does not happen often. I have also experienced what it is like to teach young minds. Since have been a middle school wrestling coach I have seen true confusion in young
kids, but I have been able to simplify the most abstract ideas, and ... | {"url":"http://www.purplemath.com/La_Crosse_IN_Math_tutors.php","timestamp":"2014-04-21T02:46:53Z","content_type":null,"content_length":"23762","record_id":"<urn:uuid:0697235d-c612-4cd8-95aa-6f417a68393c>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00420-ip-10-147-4-33.ec2.internal... |
Refractive Texture Mapping, Part One
This article presents, in two parts, a detailed implementation of refractive texture mapping for a simple water wave simulation using directional sine waves applied to a flat polygonal mesh. It is
assumed that the reader is familiar with the 3D transformations pipeline, simple vecto... | {"url":"http://www.gamasutra.com/view/feature/3121/refractive_texture_mapping_part_.php","timestamp":"2014-04-21T07:22:59Z","content_type":null,"content_length":"67268","record_id":"<urn:uuid:61994aba-8896-4bb7-bfc9-dd827a29edfd>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-20140423032004-00407-ip... |
AC (2003), pp. 181-190
Discrete Random Walks, DRW'03
Cyril Banderier and Christian Krattenthaler (eds.)
... | {"url":"http://www.dmtcs.org/dmtcs-ojs/index.php/proceedings/article/viewArticle/dmAC0117/1365","timestamp":"2014-04-18T10:52:42Z","content_type":null,"content_length":"14099","record_id":"<urn:uuid:0c095dd0-c54e-4a91-aada-009076439b99>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-0... |
Relevant Logic and Entailment
Results 1 - 10 of 79
, 2000
"... Abstract: This is a history of relevant and substructural logics, written for the Handbook of the History and Philosophy of Logic, edited by Dov Gabbay and John Woods. 1 1 ..."
Cited by 139 (16 self)
Add to MetaCart
Abstract: This is a history of relevant a... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=131642","timestamp":"2014-04-21T16:07:41Z","content_type":null,"content_length":"36516","record_id":"<urn:uuid:7c874109-7572-4672-bdd5-61c333f7913e>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00012-ip-10-147-4-33.ec2.internal.war... |
Concord, CA Prealgebra Tutor
Find a Concord, CA Prealgebra Tutor
...I have tutored or developed lessons to help people learn topics such as algebra, electronics, and the Bible. My occupation has been as a technical trainer over the past 30 years. I enjoy
Jeopardy, math and logic puzzles, and reading.
21 Subjects:... | {"url":"http://www.purplemath.com/concord_ca_prealgebra_tutors.php","timestamp":"2014-04-19T17:01:31Z","content_type":null,"content_length":"24079","record_id":"<urn:uuid:c9f955d7-7879-4a4b-9d84-9645934ec180>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00631-ip-10-147-4-33.ec2.inter... |
Patent US7382471 - Non-contact apparatus and method for measuring surface profile
This application claims priority to and is a divisional of U.S. patent application Ser. No. 10/184,003, entitled, NON-CONTACT APPARATUS AND METHOD FOR MEASURING SURFACE PROFILE, filed Jun. 27, 2002,
now U.S. Pat. No. 7,061,628 which claim... | {"url":"http://www.google.ca/patents/US7382471","timestamp":"2014-04-18T20:48:32Z","content_type":null,"content_length":"117061","record_id":"<urn:uuid:a59eda92-6b7f-4d83-91c5-9ab51f0d98f9>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00074-ip-10-147-4-33.ec2.internal.warc.gz"} |
Russian Mathematical Surveys
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Contents 3
Birational models and flips ... | {"url":"http://books.google.com/books?id=aPEeAQAAIAAJ&q=Mathematics&dq=related:ISBN883710474X&lr=&source=gbs_word_cloud_r&cad=6","timestamp":"2014-04-17T19:16:28Z","content_type":null,"content_length":"129385","record_id":"<urn:uuid:464fe328-399a-426f-8979-6dd2314682f7>","cc-path":"CC-MAIN-2014-15/segments/139760953089... |
8 III. Brahmagupta, and the influence on Arabia
Indian Mathematics MacTutor Index
Previous page Contents Next page
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A bijection between sets of Young tableaux of two kinds
up vote 13 down vote favorite
Assuming that the problem of exhibiting a bijection is not considerd a frivolous pursuit, allow me to ask a question troubling me for some time now.
Let $\lambda \vdash n$ denote the fact that $\lambda$ is a partition of $n$. Denote t... | {"url":"http://mathoverflow.net/questions/70203/a-bijection-between-sets-of-young-tableaux-of-two-kinds","timestamp":"2014-04-16T07:50:37Z","content_type":null,"content_length":"53701","record_id":"<urn:uuid:073453a7-21f9-4812-97b7-27b4f7df3f4a>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-2014041... |