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Infinite Integration of Fick's Second Law
Hi everyone!
Recently, I've been trying to understand how the error function pertains to solving for concentration in a non-steady state case (with a constant diffusivity D), but I've been having some trouble
with the initial assumptions. The source I am currently using (Crank'... | {"url":"http://www.physicsforums.com/showthread.php?t=701470","timestamp":"2014-04-16T04:36:07Z","content_type":null,"content_length":"25310","record_id":"<urn:uuid:95d19aba-b075-4488-893c-08dca223cc6e>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00225-ip-10-147-4-33.ec2.internal.w... |
Getting started with XNA – Animating a 3D Model
In the previous tutorial, we’ve loaded and displayed a 3d model. But can you think of a game with static 3d models? No, it’s time we start animating our model. Most of the time, a 3d artist will
handle the animations, and you’ll just load it and play it. But animations ar... | {"url":"http://www.3dgameprogramming.net/2007/07/09/getting-started-with-xna-animating-a-3d-model/","timestamp":"2014-04-19T14:30:25Z","content_type":null,"content_length":"28556","record_id":"<urn:uuid:9b94048c-190a-4a3e-9811-f950d6d6e031>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-2014041600521... |
Characteristic Function of Product of Random Variables
May 13th 2008, 06:34 PM
Characteristic Function of Product of Random Variables
I am trying to calculate the characteristic function of X*Y where both X and Y are standard normal variables with correlation coefficient p. I have succeeded in the case where p = 0 ... | {"url":"http://mathhelpforum.com/advanced-statistics/38271-characteristic-function-product-random-variables-print.html","timestamp":"2014-04-23T14:03:16Z","content_type":null,"content_length":"4797","record_id":"<urn:uuid:f4e1e902-90bb-4057-8e4e-e3d18177acbe>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/C... |
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what is the inverse of the following statement: if he speaks a... | {"url":"http://openstudy.com/updates/4ee0ca95e4b05ed8401b544a","timestamp":"2014-04-21T04:42:14Z","content_type":null,"content_length":"37306","record_id":"<urn:uuid:1e04fbe3-ace0-4709-b7e3-a235dc142fa1>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00011-ip-10-147-4-33.ec2.internal.... |
phenomenon. Nonpredictive information is derived from rates and assumes a random distribution about that rate. Causal precursors assume some connection and understanding about the failure process. To
be a predictive precursor, a phenomenon not only must be related to one particular earthquake sequence but also must dem... | {"url":"http://www.nap.edu/openbook.php?record_id=5709&page=3722","timestamp":"2014-04-18T08:25:55Z","content_type":null,"content_length":"42221","record_id":"<urn:uuid:7cd3d5b9-2eab-408b-9a28-7b619bb653ab>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00595-ip-10-147-4-33.ec2.intern... |
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CS 276, Spring 2004
David Wagner (daw@cs, 765 Soda Hall, 642-2758)
Monday/Wednesday, 10:30-12:00, 310 Soda
• No class on Monday, May 10! Last lecture is Wednesday, May 5.
• Final projects are due at 9am on Wed, May 19.
Here is a list of past lectures and the topics covered. I've also indicated possibilities for fur... | {"url":"http://www.cs.berkeley.edu/~daw/teaching/cs276-s04/","timestamp":"2014-04-17T09:49:28Z","content_type":null,"content_length":"13264","record_id":"<urn:uuid:634b6590-1a8e-4367-ba59-110699b6b7f6>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00573-ip-10-147-4-33.ec2.internal.wa... |
DeVry Mesa
DeVry Mesa - MATH 221
MATH 221 provides students with an in-depth understanding of Math theory and concepts, such as Trigonometry.
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• Everything you need to learn more effec... | {"url":"http://www.coursehero.com/sitemap/schools/172-DeVry-Mesa/courses/871598-MATH221/","timestamp":"2014-04-17T07:36:52Z","content_type":null,"content_length":"62830","record_id":"<urn:uuid:5f23ce34-01bb-4c15-8d73-3e7ce51a6dab>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00396-i... |
tion and
Bai, Jushan and Wang, Peng (2012): Identification and estimation of dynamic factor models.
Download (651Kb) | Preview
We consider a set of minimal identification conditions for dynamic factor models. These conditions have economic interpretations, and require fewer number of restrictions than when putting i... | {"url":"http://mpra.ub.uni-muenchen.de/38434/","timestamp":"2014-04-21T04:32:06Z","content_type":null,"content_length":"31673","record_id":"<urn:uuid:dd3b0090-1156-40d1-baeb-5c1bfaf53f20>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00017-ip-10-147-4-33.ec2.internal.warc.gz"} |
Audubon, NJ Geometry Tutor
Find an Audubon, NJ Geometry Tutor
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[plt-scheme] Re: The Philosophy of DrScheme
From: Greg Woodhouse (gregory.woodhouse at gmail.com)
Date: Mon Dec 1 13:26:16 EST 2008
A minor nit: There is no reason why mathematics cannot be taught as an
active process of discovery. The problem (well, one problem) is that the
only way to really learn mathematics is by d... | {"url":"http://lists.racket-lang.org/users/archive/2008-December/028959.html","timestamp":"2014-04-17T01:56:45Z","content_type":null,"content_length":"8861","record_id":"<urn:uuid:1577557b-0024-446e-be5d-7ce46e92f2f6>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00381-ip-10-147-4-33.... |
Low and high pass filters - calculate the cutoff frequencies, Electrical Engineering
At the completion of this unit, you will be able to determine the cutoff frequencies and attenuations of RC and RL low- and high-pass filters by using test circuits.
A filter is a frequency-selective circuit that permits signals of cer... | {"url":"http://www.expertsmind.com/questions/low-and-high-pass-filters-calculate-the-cutoff-frequencies-30139068.aspx","timestamp":"2014-04-16T10:18:16Z","content_type":null,"content_length":"34485","record_id":"<urn:uuid:f6da8408-dc80-49cc-991e-c808ef604963>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/C... |
NASA - SPACE SHUTTLE ASCENT: MASS VS. TIME
Algebra 1 Key Topic:
Modeling data with linear regression equations
Students will be asked to create scatter plots and find linear regression equations using mission data on the mass of the space shuttle during the first two minutes of the ascent phase.
Students will
• creat... | {"url":"http://www.nasa.gov/audience/foreducators/exploringmath/algebra1/Prob_ShuttleMassTime_detail.html","timestamp":"2014-04-19T19:41:51Z","content_type":null,"content_length":"21314","record_id":"<urn:uuid:742122b0-067a-42ee-80bd-eb0ae8de4db0>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-201404... |
Palisades, NY Math Tutor
Find a Palisades, NY Math Tutor
...I try to spend as much time as that student may need, and provide a variety of practice exercises. Algebra II/Trigonometry:I cover as much topics as the student needs or all the topics,
especially the ratio of those most pertinent to the Regents exam. From... | {"url":"http://www.purplemath.com/palisades_ny_math_tutors.php","timestamp":"2014-04-17T04:23:16Z","content_type":null,"content_length":"23731","record_id":"<urn:uuid:f2a693d0-c563-4db0-bf1c-df85d1bb16c1>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00491-ip-10-147-4-33.ec2.internal... |
Washington Precalculus Tutors
...Post-undergraduate, I began as a volunteer group tutor before also becoming a private one-on-one tutor as well. I enjoy every minute of it, and it's been one of the most rewarding experiences
of my life so far, one that has inspired me to become a secondary math teacher. I value a s... | {"url":"http://www.algebrahelp.com/Washington_precalculus_tutors.jsp","timestamp":"2014-04-17T12:45:23Z","content_type":null,"content_length":"25339","record_id":"<urn:uuid:154c87ac-bff3-4147-9a62-8ef64ab2f568>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00324-ip-10-147-4-33.ec2.in... |
May the
May the (Trading) Odds Be Ever In Your Favor
by Tyler Craig | March 30, 2012 12:43 pm
The Hunger Games, I was pleasantly surprised to come across a slogan that could very well have turned up in an options manual.
“May the Odds Be Ever In Your Favor”
While the phrase was a mo... | {"url":"http://investorplace.com/2012/03/may-the-trading-odds-be-ever-in-your-favor/print","timestamp":"2014-04-19T23:45:47Z","content_type":null,"content_length":"5046","record_id":"<urn:uuid:19415ed6-f99d-47b4-83e8-66e58fbb9983>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00598-i... |
Results 1 - 10 of 14
, 1998
"... The aim of this paper is to comprehensively question the validity of the standard way of interpreting Chaitin’s famous incompleteness theorem, which says that for every formalized theory of
arithmetic there is a finite constant c such that the theory in question cannot prove any particu... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1120823","timestamp":"2014-04-20T12:23:19Z","content_type":null,"content_length":"36079","record_id":"<urn:uuid:822b9184-1116-40cb-9045-e3f4a518a557>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00132-ip-10-147-4-33.ec2.internal.wa... |
Matches for: Author/Editor=(Shchigolev_Vladimir)
Modular Branching Rules for Projective Representations of Symmetric Groups and Lowering Operators for the Supergroup \(Q(n)\)
             
Memoirs of the There are two approaches to projective representation theory of symmetric and altern... | {"url":"http://ams.org/cgi-bin/bookstore/booksearch?fn=100&pg1=CN&s1=Shchigolev_Vladimir&arg9=Vladimir_Shchigolev","timestamp":"2014-04-19T19:55:13Z","content_type":null,"content_length":"15429","record_id":"<urn:uuid:9713b0bf-40ca-499e-a6cc-94ad28e69dcc>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAI... |
6.4.1 Edge Covering: The Chinese Postman's Problem
Consider the case of a mailman who is responsible for the delivery of mail in the city area shown in graph form on Figure 6.12. The mailman must always begin his delivery route at node A where the
post office.is located; must traverse every single street in his area; a... | {"url":"http://web.mit.edu/urban_or_book/www/book/chapter6/6.4.1.html","timestamp":"2014-04-18T13:52:10Z","content_type":null,"content_length":"4056","record_id":"<urn:uuid:ace77911-69b0-4a86-ac75-68c9d4e8ecb1>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00075-ip-10-147-4-33.ec2.int... |
Bending of Cantilever Beams
Chapter 3
Bending of Cantilever Beams
3.1 Introduction
In designing engineering structures, such as buildings and bridges, cantilever beams are a main structural element receiving bending forces. This chapter considers the bending of a static cantilever
beam of a constant cross section by a ... | {"url":"http://reference.wolfram.com/applications/structural/BendingofCantileverBeams.html","timestamp":"2014-04-20T21:21:28Z","content_type":null,"content_length":"70772","record_id":"<urn:uuid:18f49a13-d9dd-4c62-846b-028a1916f6f3>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00192-... |
Graphing Inequalities Word Problems
Submit your word problem on graphing inequalities:
Are you looking for graphing inequalities word problems? TuLyn is the right place. We have tens of word problems on graphing inequalities and hundreds on other math topics.
Below is the list of all word problems we have on graphing i... | {"url":"http://tulyn.com/wordproblems/graphing_inequalities.htm","timestamp":"2014-04-17T10:05:22Z","content_type":null,"content_length":"11136","record_id":"<urn:uuid:eaf8c582-d56a-4f78-8c46-05e55dcf4818>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00263-ip-10-147-4-33.ec2.internal... |
Automorphisms and derivations of U_q(sl_4^+)
Launois, S. and Lopes, S.A. (2007) Automorphisms and derivations of U_q(sl_4^+). Journal of Pure and Applied Algebra , 211 (1). pp. 249-264. ISSN 0022-4049 . (The full text of this publication is not
available from this repository)
We compute the automorphism group of the q-... | {"url":"http://kar.kent.ac.uk/3156/","timestamp":"2014-04-17T15:43:15Z","content_type":null,"content_length":"21901","record_id":"<urn:uuid:6ea5b799-fb38-43d4-beaa-b6ed295c07da>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00352-ip-10-147-4-33.ec2.internal.warc.gz"} |
Reduced Order Long Interconnect Modeling
"... At higher operating (GHz) frequency the interconnect wire does not behave like a simple metallic resistance but as a transmission line. This being the main reason for signal integrity losses in
high frequency interconnect line. Signal Integrity (SI) losses in the interconne... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=5017882","timestamp":"2014-04-19T19:25:59Z","content_type":null,"content_length":"13285","record_id":"<urn:uuid:12e22819-5fc3-402a-ab26-d4676cf1f7e9>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00066-ip-10-147-4-33.ec2.internal.wa... |
Life Cycles
Life Cycles
Are there periodic booms and busts in the diversity of life on Earth? Hear a tale of fossils and Fourier transforms
Inside the Black Box
Does that wiggly line reveal a periodic oscillation? There are certainly plenty of humps and dips, including deep valleys that correspond to several mass extin... | {"url":"http://www.americanscientist.org/issues/pub/life-cycles/4","timestamp":"2014-04-20T11:07:22Z","content_type":null,"content_length":"124339","record_id":"<urn:uuid:5abf8bc9-eccc-4d3b-9020-f7cc22611cd0>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00421-ip-10-147-4-33.ec2.inte... |
How to Calculate the Volume of a Rectangular Prism
Edit Article
Edited by DifuWu, Luv_sarah, Nicole Willson, Teresa and 4 others
Calculating the volume of a rectangular prism is easy once you know its width, length, and height. If you want to know how to calculate the volume of a rectangular prism, just follow these ea... | {"url":"http://www.wikihow.com/Calculate-the-Volume-of-a-Rectangular-Prism","timestamp":"2014-04-21T08:13:41Z","content_type":null,"content_length":"66176","record_id":"<urn:uuid:68fc0590-006b-4230-88ee-719b4255ea20>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00348-ip-10-147-4-33.... |
188 helpers are online right now
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About Pythagorean triple...
August 8th 2010, 07:12 PM #1
Jul 2010
Hi! Can anyone provide a proof for the following:
The following formula
generates all the positive integers that satisfy $a^2+b^2=c^2$.
I believe we can use an argument similar to the one in this thread post #22.
What undefined su... | {"url":"http://mathhelpforum.com/number-theory/153111-about-pythagorean-triple.html","timestamp":"2014-04-17T12:50:17Z","content_type":null,"content_length":"41875","record_id":"<urn:uuid:1176ff0e-84d3-46b1-84cb-23cbd6ff1aea>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00082-ip-10-... |
This Javascript calculator estimates interspecies dosage scaling between animals of different weights via exponential allometry.
Enter weights for the two animals, the dose used for the first animal and an exponent for the allometric calculation. Generally, allometric scaling uses an exponent of 0.75-0.80.
Click on Cal... | {"url":"http://home.fuse.net/clymer/minor/allometry.html","timestamp":"2014-04-20T21:08:08Z","content_type":null,"content_length":"29817","record_id":"<urn:uuid:7be18daf-74dc-4f67-a8ff-f3dea688449d>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00066-ip-10-147-4-33.ec2.internal.warc.... |
THE ASTRONOMICAL VARIANTS
OF THE LUNAR APOGEE - BLACK MOON
by Juan Antonio Revilla
I. Introduction
The Black Moon / Lunar Apogee or "Empty Focus" is ... | {"url":"http://www.expreso.co.cr/centaurs/blackmoon/barycentric.html","timestamp":"2014-04-19T14:29:17Z","content_type":null,"content_length":"75702","record_id":"<urn:uuid:909d7735-876c-4036-8ef7-07e4c30efbe3>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00420-ip-10-147-4-33.ec2.int... |
Hightstown Precalculus Tutor
...I am extremely qualified to provide homework help and test preparation and would love to discuss how I can help your child succeed this school year. I have a Bachelor of Science degree from the
University of Delaware and received a 4.0 grade point average in my mathematics courses fo... | {"url":"http://www.purplemath.com/hightstown_nj_precalculus_tutors.php","timestamp":"2014-04-17T16:17:18Z","content_type":null,"content_length":"24051","record_id":"<urn:uuid:362ebed3-ea17-4889-97f4-3a49c3a167fc>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00456-ip-10-147-4-33.ec2.i... |
Barban-Davenport-Halberstam without von Mangoldt weights
up vote 4 down vote favorite
The Barban-Davenport-Halberstam theorem gives a bound for the average (in L_2 norm) difference between $\sum_{n\leq N: n\equiv a \mod q} \Lambda(n)$ and $N/\phi(q)$. It is obvious that a similar
result should hold for the difference b... | {"url":"https://mathoverflow.net/questions/43580/barban-davenport-halberstam-without-von-mangoldt-weights","timestamp":"2014-04-17T04:04:55Z","content_type":null,"content_length":"59338","record_id":"<urn:uuid:f492c30c-5ddd-43d9-990e-8bf3aba7a66e>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140... |
general solution to linear first order differential equations
February 4th 2009, 08:18 PM
general solution to linear first order differential equations
What is the basis for e, the natural log, as a general solution in D.E. ?
For example:
x' (t) + 2x (t) =6
x(t) = Ce^-2x +3
I understand d/dx (e^x) =... | {"url":"http://mathhelpforum.com/differential-equations/71880-general-solution-linear-first-order-differential-equations-print.html","timestamp":"2014-04-16T04:38:34Z","content_type":null,"content_length":"7032","record_id":"<urn:uuid:fa777eef-ad6f-418c-a45a-03fa5420db2f>","cc-path":"CC-MAIN-2014-15/segments/1397609521... |
Varying n for Speed or Resolution
Next: Using KL as a Up: Karhunen-Loeve Decomposition for Statistical Previous: Decoding a Key into
Note that the original vectors and the eigenvectors are all n-tuples with n=7000. Therefore, the computation of the 60-dimensional key (c[0], c[1], ..., c[59]) given by Equation req... | {"url":"http://www.cs.columbia.edu/~jebara/htmlpapers/UTHESIS/node68.html","timestamp":"2014-04-20T13:36:21Z","content_type":null,"content_length":"6042","record_id":"<urn:uuid:09a6fe0a-bf9d-46b8-9687-d9a5073bcfdc>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00425-ip-10-147-4-33.ec... |
Invertable matrix P and a matrix C
November 23rd 2009, 02:25 PM
Invertable matrix P and a matrix C
I need to find and invertable matrix P
Then a matrix C with the form:
|a -b|
|b a |
this comes from complex eigenvalues, and the formula
A= PC(P^-1)
my problem is
|5 -2|
|1 3 |
is t... | {"url":"http://mathhelpforum.com/advanced-algebra/116355-invertable-matrix-p-matrix-c-print.html","timestamp":"2014-04-21T16:03:31Z","content_type":null,"content_length":"7435","record_id":"<urn:uuid:1ef27c64-182a-407e-8d09-068ac8bfbdfd>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-... |
Solar-Powered Car
If you like the sun, and you like cars, then I’m guessing you’d love to have a solar-powered car, right? This trick works well for chocolate and peanut butter, but not so well for garlic bread and
strawberries. So how compatible are cars with solar energy? Do we relish the combination or spit it out? ... | {"url":"http://www.energybulletin.net/print/59916","timestamp":"2014-04-19T05:55:47Z","content_type":null,"content_length":"21980","record_id":"<urn:uuid:c6f5ea62-da32-4034-bcec-8160fe542778>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00319-ip-10-147-4-33.ec2.internal.warc.gz"} |
Solutions of nonlinear SPDE via random Colombeau distribution
Çapar, Uluğ (2006) Solutions of nonlinear SPDE via random Colombeau distribution. [Working Paper / Technical Report] Sabanci University ID:SU_FENS_2006/0008
Full text not available from this repository.
The solutions of nonlinear SPDE are usually involved wi... | {"url":"http://research.sabanciuniv.edu/804/","timestamp":"2014-04-19T10:11:32Z","content_type":null,"content_length":"14816","record_id":"<urn:uuid:dcf80646-66fb-4844-8d34-06d67e0ba2a8>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00159-ip-10-147-4-33.ec2.internal.warc.gz"} |
The point location problem
Comments 0
Computational geometry is a field that studies efficient solution of geometric problems, which are critical in mapping, manufacturing, and particularly graphics applications. If you find data
structures and algorithms interesting, it's likely you'd also find computational geometry ... | {"url":"http://blogs.msdn.com/b/devdev/archive/2005/09/01/459540.aspx","timestamp":"2014-04-20T02:28:18Z","content_type":null,"content_length":"60436","record_id":"<urn:uuid:f954525f-9b5e-4501-818b-2f59fde86378>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00084-ip-10-147-4-33.ec2.in... |
Alhambra, CA Statistics Tutor
Find an Alhambra, CA Statistics Tutor
...I tutored throughout high school (algebra, calculus, statistics, chemistry, physics, Spanish, and Latin) and tutored advanced math classes during college. Above all other things, I love to
learn how other people learn and to teach people new thi... | {"url":"http://www.purplemath.com/alhambra_ca_statistics_tutors.php","timestamp":"2014-04-17T16:03:24Z","content_type":null,"content_length":"24016","record_id":"<urn:uuid:49af2e82-5c3e-4e34-a702-f2280568ac00>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00121-ip-10-147-4-33.ec2.inte... |
An empirical bayes estimator of the mean of a normal population
- in Adv. Neural Information Processing Systems (NIPS*06 , 2007
"... Bayesian estimators are defined in terms of the posterior distribution. Typically, this is written as the product of the likelihood function and a prior probability density, both of which... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=3833524","timestamp":"2014-04-18T02:00:41Z","content_type":null,"content_length":"34535","record_id":"<urn:uuid:16d40c3f-6e01-4e7a-a9ef-016620468e44>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00251-ip-10-147-4-33.ec2.internal.wa... |
What is R?
Author What is R?
Joined: I've seen and heard about "R" but don't know much about it. What technology(ies) are "R" dependent on?
Aug 27,
2010 Thanks
Posts: 4 Kam
Greenhorn Hi Kam,
Joined: I'm not sure what y... | {"url":"http://www.coderanch.com/t/535134/ol/","timestamp":"2014-04-16T10:43:02Z","content_type":null,"content_length":"29665","record_id":"<urn:uuid:1011932d-77b1-4fbf-a769-d44c0b7860d8>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00358-ip-10-147-4-33.ec2.internal.warc.gz"} |
Solving for x: A/sin(x)=B/sin(C-x)
May 1st 2011, 05:34 AM #1
May 2011
I am trying to solve this equation: A/sin(x)=B/sin(C-x)
for x, where 0<=C<=pi and A<B.
It's been years since I last would have contemplated solving such an expression and quite frankly I am somewhat saddened that I have forgotten how.... | {"url":"http://mathhelpforum.com/trigonometry/179128-solving-x-sin-x-b-sin-c-x.html","timestamp":"2014-04-18T20:05:59Z","content_type":null,"content_length":"37492","record_id":"<urn:uuid:0bfe9861-eb9a-4740-b836-3e71badc303b>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00305-ip-10-1... |
Wolfram Demonstrations Project
Solving Systems of Transcendental Equations
Choose an equation or a system of equations from the popup menu. The first three choices are univariate complex analytic equations, the last one is a pair of real equations not derived from a single
complex analytic one. You can move around the ... | {"url":"http://demonstrations.wolfram.com/SolvingSystemsOfTranscendentalEquations/","timestamp":"2014-04-18T05:33:33Z","content_type":null,"content_length":"43354","record_id":"<urn:uuid:997c31ad-9bd5-42db-a5a0-4a159452bbaa>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00014-ip-10-14... |
Math Help
September 8th 2011, 05:23 PM #1
Aug 2011
Need some help to tell me what I'm doing wrong.
solve for y:
2e^(-y/3) = t + 4
ln(2e^(-y/3)) = ln(t+4)
-y/3(2) = ln(t+4)
y= -(3/2)ln(t+4)
ln(20-y) = -.2t + ln8
*Mult both sides by e
20-y = 8e^(-.2)
y= 20 - 8e^-.2
Re: Logs
... | {"url":"http://mathhelpforum.com/pre-calculus/187599-logs.html","timestamp":"2014-04-18T09:09:31Z","content_type":null,"content_length":"43345","record_id":"<urn:uuid:5c23588e-47b6-49b0-9a12-20f06805f9e4>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00432-ip-10-147-4-33.ec2.internal... |
8th grade math for Ms. Sue
Number of results: 246,541
CAMERON IS IN 8TH ASUNTE IS IN 5TH THIS PROBLEM IS 8TH GRADE MATH.YES I NEED TO EXPRESS IT INTO MATH TERMS. TY
Thursday, August 23, 2012 at 8:45pm by CAMERON
8th Grade Math
Thanks Ms. Sue your the best :)
Tuesday, October 30, 2012 at 5:07pm by Anonymous
8th grade ma... | {"url":"http://www.jiskha.com/search/index.cgi?query=8th+grade+math+for+Ms.+Sue","timestamp":"2014-04-20T09:02:27Z","content_type":null,"content_length":"31071","record_id":"<urn:uuid:19c24836-5494-4801-9d96-78886526ec27>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00460-ip-10-147-4... |
Surface Effects on the Vibration and Buckling of Double-Nanobeam-Systems
Journal of Nanomaterials
Volume 2011 (2011), Article ID 518706, 7 pages
Research Article
Surface Effects on the Vibration and Buckling of Double-Nanobeam-Systems
Department of Engineering Mechanics, SVL, Xi'an Jiaotong University, Xi'an 710049, Ch... | {"url":"http://www.hindawi.com/journals/jnm/2011/518706/","timestamp":"2014-04-17T19:20:36Z","content_type":null,"content_length":"210893","record_id":"<urn:uuid:a05a0d18-987d-492e-b31b-8db6937fdd0a>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00246-ip-10-147-4-33.ec2.internal.warc... |
Basic box game - Collision Detection [Archive] - OpenGL Discussion and Help Forums
04-21-2011, 09:10 AM
Im making a basic box game which involves moving boxes around a maze and pushing other boxes, im new to collision detection but am able to get my head around it. The thing I can't get my head around
though is why th... | {"url":"http://www.opengl.org/discussion_boards/archive/index.php/t-174353.html","timestamp":"2014-04-16T16:59:07Z","content_type":null,"content_length":"6244","record_id":"<urn:uuid:6fa6374f-c2b8-4303-a32b-3198377cf7e8>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00096-ip-10-147-4... |
Definition. The Wronskian of two functions f and g is W(f,g) = fg′–gf′. More generally, for n real- or complex-valued functions f1, ...
Wronskian is described in multiple online sources, as addition to our editors' articles, see section below for printable documents, Wronskian books and related discussion.
Suggeste... | {"url":"http://www.realmagick.com/wronskian/","timestamp":"2014-04-16T14:46:37Z","content_type":null,"content_length":"19802","record_id":"<urn:uuid:b6f80f52-7ecf-46e5-9351-baff761a9333>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00355-ip-10-147-4-33.ec2.internal.warc.gz"} |
Johnson Trotter Algorithm to generate Permutations!
Johnson trotter algorithm gives a non recursive approach to generate permutations. The algorithm goes something like this..
while there exists a mobile integer k do
-->find the largest mobile integer k;
-->swap k and the adjacent integer its arrow points to;
-->revers... | {"url":"http://krishnabharadwaj.info/Johnson-Trotter-Algorithm/","timestamp":"2014-04-20T03:24:51Z","content_type":null,"content_length":"9145","record_id":"<urn:uuid:f45db0d6-e878-423f-a529-1a89e734e178>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00565-ip-10-147-4-33.ec2.internal... |
Should tables be sorted? Yes but--- a question
In Yao's paper
Should tables be sorted
he did the following (I am paraphrasing alot).
A (U,n;q)-WPDS (Word Probe Data Structure) for MEM is the following;
1. A function that does the following: Given A\substeq U, |A|=n, return the elements of A in some order. Think of the... | {"url":"http://blog.computationalcomplexity.org/2008/11/should-tables-be-sorted-yes-but.html","timestamp":"2014-04-19T07:52:28Z","content_type":null,"content_length":"163833","record_id":"<urn:uuid:93f7a86e-ae0c-458d-82bb-1bc8c67c8e16>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-004... |
How Fast Are the Cars in Angry Birds GO!? | Science Blogs | WIRED
• By Rhett Allain
• 12.29.13 |
• 11:44 am |
I obviously love Angry Birds and physics (here is a bit.ly bundle with most of my Angry Birds posts). But what about Angry Birds Go!? This game is a bit different. Ok, it’s totally different except
that t... | {"url":"http://www.wired.com/2013/12/how-fast-are-the-cars-in-angry-birds-go/","timestamp":"2014-04-16T08:19:17Z","content_type":null,"content_length":"108535","record_id":"<urn:uuid:77da2f0a-963e-44c0-98b7-73e83e66e523>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00641-ip-10-147-4... |
PCA-based bootstrap confidence interval tests for gene-disease association involving multiple SNPs
• We are sorry, but NCBI web applications do not support your browser and may not function properly.
More information
PCA-based bootstrap confidence interval tests for gene-disease association involving multiple SNP... | {"url":"http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2825231/?tool=pubmed","timestamp":"2014-04-19T17:47:57Z","content_type":null,"content_length":"107438","record_id":"<urn:uuid:ef29601b-0b3f-4c4f-90b7-d9391218a71d>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00093-ip-10-147-4-33.e... |
How long does it take to drive 80 miles at 65 mph?
Speed limits in the United States are set by each state or territory. Speed limits are always posted in increments of five miles per hour. Some states have lower limits for trucks and at night, and
occasionally there are minimum speed limits. Most speed limits are set ... | {"url":"http://answerparty.com/question/answer/how-long-does-it-take-to-drive-80-miles-at-65-mph","timestamp":"2014-04-18T16:29:47Z","content_type":null,"content_length":"24260","record_id":"<urn:uuid:9af7f1bc-7b09-4f86-9e04-229d22b9522c>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-... |
IntroductionStudy Area and DataRemote Sensing DataOfficial Yield StatisticsMethodsRS-Derived Biomass ProxiesStatistical ModelingResults and DiscussionOverall Predictive CapabilitiesPredicting Temporal VariabilityEffects of Data ScarcityConclusionsReferencesAppendixFigures and Tables
Wheat yield is estimated through emp... | {"url":"http://www.mdpi.com/2072-4292/5/2/539/xml","timestamp":"2014-04-17T18:25:10Z","content_type":null,"content_length":"98284","record_id":"<urn:uuid:085a0e13-c769-4e07-8e89-e7ca2c11bef8>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00028-ip-10-147-4-33.ec2.internal.warc.gz"} |
A Word for the Slow
So, my solution for Masak’s p1 has the distinction of being by far the least efficient working solution. Which is a shame, because I think this one was my favorite solution of the contest. It may be
slow, and I’d never advise anyone to use it for anything practical (given the other, much more effici... | {"url":"http://justrakudoit.wordpress.com/2011/01/20/a-word-for-the-slow/?like=1&_wpnonce=68d26d17fa","timestamp":"2014-04-19T01:53:05Z","content_type":null,"content_length":"48074","record_id":"<urn:uuid:a3e0d7fe-f893-492b-b80d-79524cbf3ae7>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-2014042303... |
Take each looped value and put it into an equation
MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi
What I'm trying to get this to do is solve for K by incrementing i by 20 all the way up to 1000.
For each K I want to take that value, put it into the solve function and have it give me a numerical value... | {"url":"http://www.mathworks.com/matlabcentral/answers/54719","timestamp":"2014-04-20T00:45:26Z","content_type":null,"content_length":"23974","record_id":"<urn:uuid:b726a34b-fe4d-4d06-808a-db9cc7f24f37>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00365-ip-10-147-4-33.ec2.internal.wa... |
Interaction categories and typed concurrent programming
- In Proc. CONCUR , 1997
"... Abstract. We study properties of asynchronous communication independently of any concrete concurrent process paradigm. We give a general-purpose, mathematically rigorous definition of several
notions of asynchrony in a natural setting... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=2354881","timestamp":"2014-04-17T07:59:31Z","content_type":null,"content_length":"25961","record_id":"<urn:uuid:039f7dbf-dd23-4c0c-bba5-6cc6df99294b>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00522-ip-10-147-4-33.ec2.internal.wa... |
Computational physics is sometimes described as using a backhoe instead of a spade – bringing computational power to problems that are just too much work to do by hand. But there is far more to
computational physics than brute strength and heavy number crunching. There is an art to it – an art which physicists facing c... | {"url":"http://perimeterinstitute.ca/node/88087","timestamp":"2014-04-18T23:00:45Z","content_type":null,"content_length":"33129","record_id":"<urn:uuid:4b8da3e5-7877-4f41-a427-3224d37cab48>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00590-ip-10-147-4-33.ec2.internal.warc.gz"} |
[R] rnorm() converted to daily
Meyners, Michael, LAUSANNE, AppliedMathematics Michael.Meyners at rdls.nestle.com
Fri Apr 17 10:21:41 CEST 2009
SD in y is more than 15 times (!!!) larger than in x and z,
respectively, and hence SD of the mean y is also larger. 100,000 values
are not enough to stabilize this. You could h... | {"url":"https://stat.ethz.ch/pipermail/r-help/2009-April/195342.html","timestamp":"2014-04-18T02:59:12Z","content_type":null,"content_length":"5223","record_id":"<urn:uuid:4d3ced23-0bff-41ba-80d4-b6b05db94a26>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00134-ip-10-147-4-33.ec2.int... |
( resource psdoc, float x, float y, float radius, float alpha, float beta )
Draws a portion of a circle with at middle point at (x, y). The arc starts at an angle of alpha and ends at an angle of beta. It is drawn counterclockwise (use ps_arcn() to draw clockwise). The
subpath added to the current path starts on the ar... | {"url":"http://idlebox.net/2007/apidocs/php-manual-20070505.zip/function.ps-arc.html","timestamp":"2014-04-18T00:48:14Z","content_type":null,"content_length":"4613","record_id":"<urn:uuid:7d757229-e97a-4c4c-afcc-4782f8f49cf2>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00312-ip-10-1... |
Fundamental To The Decimation In Time FFT Algorithm ... | Chegg.com
Image text transcribed for accessibility: Fundamental to the decimation in time FFT algorithm is the fact that an N-length signal x[n] can be split into a weighted sum of 2 N/2-sized DFTs. Suppose
you have a 4-point signal x[n]. It is split by even/odd... | {"url":"http://www.chegg.com/homework-help/questions-and-answers/fundamental-decimation-time-fft-algorithm-fact-n-length-signal-x-n-split-weighted-sum-2-n--q3128010","timestamp":"2014-04-20T18:52:42Z","content_type":null,"content_length":"20747","record_id":"<urn:uuid:bb84319e-883b-442a-96b8-efd286b07f48>","cc-path":"C... |
Hiram, GA Algebra 2 Tutor
Find a Hiram, GA Algebra 2 Tutor
...I also took College Algebra my Senior year, along with Advanced Algebra and Trigonometry. I know that Pre-Algebra, Algebra 1 and 2 provide a strong foundation for all other math courses taken,
both in high school and college. I will focus in on what the ... | {"url":"http://www.purplemath.com/Hiram_GA_algebra_2_tutors.php","timestamp":"2014-04-21T07:25:59Z","content_type":null,"content_length":"24018","record_id":"<urn:uuid:0b33767f-a2fe-437c-9ed9-1c951ede5435>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00662-ip-10-147-4-33.ec2.interna... |
How Long? How Wide? How Tall? How Deep?
In this lesson, students use historical nonstandard units (digits, hand, cubit, yard, foot, pace, fathom) to estimate the lengths of common objects and then measure using modern standard units. They
will discover the usefulness of standardized measurement units and tools.
Many st... | {"url":"http://illuminations.nctm.org/Lesson.aspx?id=2120","timestamp":"2014-04-20T10:48:47Z","content_type":null,"content_length":"71187","record_id":"<urn:uuid:113e952c-f1c4-4f3b-9252-0ef2ac838518>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00432-ip-10-147-4-33.ec2.internal.warc.... |
This challenge question kinda reminds me of Mickey Mouse
Yesterday I went to a museum and waited in line for a very long time for my turn to spend 5 minutes staring at a piece of art that completely mystified me. I guess it’s good art if I’m still thinking
about it a day later, even if the thoughts I’m having mostly re... | {"url":"http://pwnthesat.com/wp/2013/09/this-challenge-question-kinda-reminds-me-of-mickey-mouse/","timestamp":"2014-04-18T15:38:28Z","content_type":null,"content_length":"68457","record_id":"<urn:uuid:a2b3e483-0885-48b8-9e6a-a9038f3d9781>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-2014041600521... |
Sylow Subgroups
up vote 14 down vote favorite
I had been looking lately at Sylow subgroups of some specific groups and it got me to wondering about why Sylow subgroups exist. I'm very familiar with the proof of the theorems (something that
everyone learns at the beginning of their abstract algebra course) -- incidental... | {"url":"http://mathoverflow.net/questions/18716/sylow-subgroups/18718","timestamp":"2014-04-18T03:20:06Z","content_type":null,"content_length":"81196","record_id":"<urn:uuid:66b9a544-4cf5-49f0-bebf-70c0b3a86b4d>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00068-ip-10-147-4-33.ec2.i... |
Swimming Pool Heater Guide
What Size Heater Do You Need?
Before you rush off madly spending money, it is a good idea to figure out what heating capacity you need for your swimming pool. Following the instructions following on this page you will be able to
calculate the volume of a pool and work out a rough minimum heat... | {"url":"http://poolheaterguide.com/what-size-heater-do-you-need/","timestamp":"2014-04-19T17:51:52Z","content_type":null,"content_length":"31924","record_id":"<urn:uuid:ba758b48-9060-4fa9-8a83-bd336ebbf130>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00220-ip-10-147-4-33.ec2.intern... |
Seat Pleasant, MD Precalculus Tutor
Find a Seat Pleasant, MD Precalculus Tutor
...As a camp counselor, I interacted with the children in Spanish and gave English lessons as well. As an undergraduate at Duke University, I took organic chemistry and received a high A in the
class. I have an in depth understanding the... | {"url":"http://www.purplemath.com/Seat_Pleasant_MD_precalculus_tutors.php","timestamp":"2014-04-17T15:38:16Z","content_type":null,"content_length":"24660","record_id":"<urn:uuid:58f94015-0a95-48ff-8782-09fae01bd4b5>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00032-ip-10-147-4-33.ec... |
This challenge question kinda reminds me of Mickey Mouse
Yesterday I went to a museum and waited in line for a very long time for my turn to spend 5 minutes staring at a piece of art that completely mystified me. I guess it’s good art if I’m still thinking
about it a day later, even if the thoughts I’m having mostly re... | {"url":"http://pwnthesat.com/wp/2013/09/this-challenge-question-kinda-reminds-me-of-mickey-mouse/","timestamp":"2014-04-18T15:38:28Z","content_type":null,"content_length":"68457","record_id":"<urn:uuid:a2b3e483-0885-48b8-9e6a-a9038f3d9781>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-2014042303200... |
[SciPy-user] [OpenOpt] evaluation of f(x) and df(x)
Emanuele Olivetti emanuele@relativita....
Mon Jul 21 09:04:35 CDT 2008
Hi Dmitrey,
I do not understand if your message answers my question so let me
reformulate. I have the exact gradient df(x) implemented in my code
so I don't use finite differences.
In my problem, I... | {"url":"http://mail.scipy.org/pipermail/scipy-user/2008-July/017565.html","timestamp":"2014-04-18T06:33:32Z","content_type":null,"content_length":"5919","record_id":"<urn:uuid:5feda12e-30c7-4d29-b7cf-c9e0b984c3f2>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00003-ip-10-147-4-33.ec2... |
Math Help
November 4th 2008, 05:18 PM #1
Mar 2008
I was wondering if someone can check my work on these 2 problems about integrals.
A) the integrals from -2 to 3 (25)^2x+1 dx
the answer i got was [25^(7) / 2ln(25)] / [25^(-1) /2ln(25)]
B) the ingtegral 7x 6^(1-2x^2) dx
the answer i got was (-7/... | {"url":"http://mathhelpforum.com/calculus/57624-checkers.html","timestamp":"2014-04-16T10:47:02Z","content_type":null,"content_length":"29699","record_id":"<urn:uuid:c35cde61-3d3c-4f66-a8b8-5c13a6067dff>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00588-ip-10-147-4-33.ec2.internal.... |
isomorphic groups
So we want to show that every element of [tex]\mathbb{Z}_3 \times \mathbb{Z}_7[/tex] is of the form [tex]n \cdot ( [1]_3, [1]_7 )[/tex]. So for [tex]x, y \in \mathbb{Z}[/tex], we want [tex]( [x]_3,
[y]_7 ) = n \cdot ( [1]_3, [1]_7 ) = ( [n]_3, [n]_7 )[/tex]. So we need to find a number n so that [tex]... | {"url":"http://www.physicsforums.com/showthread.php?p=2470334","timestamp":"2014-04-16T04:37:23Z","content_type":null,"content_length":"31621","record_id":"<urn:uuid:6afc24a7-774e-40aa-bbcb-4e23fce8d3aa>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00257-ip-10-147-4-33.ec2.internal.... |
A. Normal modes in nonequilibrium configurations
B. Partial Hessian vibrational analysis
C. The mobile block Hessian approach
D. Discussion: PHVA versus MBH
A. PHVA and MBH applied to the equilibrium structure
B. PHVA and MBH applied to partially optimized structures
V. APPLICATION TO DI--OCTYL-ETHER | {"url":"http://scitation.aip.org/content/aip/journal/jcp/126/22/10.1063/1.2737444","timestamp":"2014-04-16T07:56:11Z","content_type":null,"content_length":"90210","record_id":"<urn:uuid:74e74c76-5149-43d5-b023-5d552f7128bc>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00072-ip-10-14... |
The math limerick.
A real nerd can combine love of math and poetry, like so:
{(12+144+20+3(4)^0.5)/7}+5(11) = 81 + 0
It’s a true equation. And, it’s a limerick. Read it out loud and you’ll see:
A dozen, a gross, and a score
Plus three times the square-root of four,
Divided by seven,
Plus five times eleven,
Is nine squa... | {"url":"http://scienceblogs.com/ethicsandscience/2006/09/06/the-math-limerick/","timestamp":"2014-04-18T00:16:58Z","content_type":null,"content_length":"61884","record_id":"<urn:uuid:3e867ddd-08cf-4505-a95e-244d31089db9>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00140-ip-10-147-4... |
optimization problem (duality etc)
March 20th 2007, 09:30 PM #1
Junior Member
Dec 2006
optimization problem (duality etc)
Prove that if the problem
max cT x
s.t. Ax = b
x >= 0
has a finite optimal solution, then the new problem
max cT x
s.t. Ax = bb
x >= 0
cannot be unbounded for... | {"url":"http://mathhelpforum.com/advanced-algebra/12802-optimization-problem-duality-etc.html","timestamp":"2014-04-16T10:50:37Z","content_type":null,"content_length":"28882","record_id":"<urn:uuid:fee15934-2706-45b0-8c7f-1633885c4265>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00... |
Riemann Integrability
May 15th 2008, 01:03 PM #1
Nov 2007
Riemann Integrability
I have no idea how to prove this. Can someone help?
Given a real number x, denote by [x] the largest integer less than or equal to x. Prove that the function defined
$f(x)$ = $\sum_{n = 0}^{\infty}\frac{nx-[nx]}{2^n}$ is Rie... | {"url":"http://mathhelpforum.com/calculus/38442-riemann-integrability.html","timestamp":"2014-04-19T11:03:33Z","content_type":null,"content_length":"46921","record_id":"<urn:uuid:edc76a31-8df2-4486-85e8-06d708180f14>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00459-ip-10-147-4-33.e... |
Help Me Understand The (NEW TAKE OF THE) Single Photon Double-Slit Experiment
BuckG wrote:
Dmytry wrote:
MonaLisaOverdrive wrote:
People get confused because they remain bound to the idea that a photon is a single discrete thing, like a little ball, and if you shoot a ball at a wall with two slits, it can't go through ... | {"url":"http://arstechnica.com/civis/viewtopic.php?p=22334769","timestamp":"2014-04-20T22:42:27Z","content_type":null,"content_length":"152631","record_id":"<urn:uuid:14579eea-0483-4415-83c3-d3367d8b31f5>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00367-ip-10-147-4-33.ec2.internal... |
Using LINEST for non-linear curve fitting
A frequent question on internet forums everywhere is how to do a least squares fit of a non-linear trend line to a set of data. The most frequent answer is to plot the data on an XY (“scatter”)
chart, and then use the “Fit Trendline” option, with the “display equation on chart... | {"url":"http://newtonexcelbach.wordpress.com/2011/01/19/using-linest-for-non-linear-curve-fitting/","timestamp":"2014-04-20T04:56:07Z","content_type":null,"content_length":"156455","record_id":"<urn:uuid:64a055bb-1850-41c5-ab55-6f396c12bc6e>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032... |
Civil-Comp Press - Publications - ISBN 0-948749-89-X - Contents Page
Civil-Comp Press
Computational, Engineering & Technology
Conferences and Publications
PROCEEDINGS OF THE NINTH INTERNATIONAL CONFERENCE ON CIVIL AND STRUCTURAL
... | {"url":"http://www.civil-comp.com/pubs/catalog.htm?t=contents&f=89_X","timestamp":"2014-04-18T18:10:24Z","content_type":null,"content_length":"39784","record_id":"<urn:uuid:6da7a542-ff59-46d9-b22f-c580fbfe0bf1>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00427-ip-10-147-4-33.ec2.int... |
Distance of two moving objects.
March 18th 2010, 03:48 AM
Distance of two moving objects.
At noon ship A is 100 km west of ship B. Ship A travels south at 35km/h and ship B travels North at 25 km/hr. At 4pm how fast does the distance between them change?
I don't quite understand how to do this so a complete exp... | {"url":"http://mathhelpforum.com/calculus/134422-distance-two-moving-objects-print.html","timestamp":"2014-04-17T01:25:25Z","content_type":null,"content_length":"5429","record_id":"<urn:uuid:5f1ab957-77ed-471d-83fe-bacd3046f4a0>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00430-ip-1... |
Noam Greenberg
My main research interests are computability theory, algorithmic randomness, reverse mathematics, higher recursion theory, computable model theory, and set theory.
From 2011 until 2015 I am a Rutherford Discovery fellow. From 2012 to 2015 I am a Turing Research fellow.
I am currently the coordinating edi... | {"url":"http://homepages.mcs.vuw.ac.nz/~greenberg/","timestamp":"2014-04-17T01:25:10Z","content_type":null,"content_length":"3232","record_id":"<urn:uuid:d6d510da-98e7-42a1-9403-e51e599d755e>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00474-ip-10-147-4-33.ec2.internal.warc.gz"} |
Weyl module
From Encyclopedia of Mathematics
Objects that are of fundamental importance for the representation theory of reductive algebraic groups Representation of a group; Reductive group; Algebraic group). Considering such groups as group
schemes (cf. Group scheme), that is, as a family of groups Finite group, repr... | {"url":"http://www.encyclopediaofmath.org/index.php?title=Weyl_module","timestamp":"2014-04-21T09:36:14Z","content_type":null,"content_length":"85372","record_id":"<urn:uuid:5f6ae453-a056-4d06-9ee5-7f7c8a5c7b76>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00384-ip-10-147-4-33.ec2.i... |
[R] levelplot/heatmap question
Deepayan Sarkar deepayan.sarkar at gmail.com
Thu Sep 25 17:37:28 CEST 2008
On 9/24/08, cerman at u.washington.edu <cerman at u.washington.edu> wrote:
> Hello!
> I have data containing a large number of probabilities (about 60) of
> nonzero coefficients to predict 10 different independent... | {"url":"https://stat.ethz.ch/pipermail/r-help/2008-September/174947.html","timestamp":"2014-04-17T12:30:54Z","content_type":null,"content_length":"4908","record_id":"<urn:uuid:40f6fefb-0130-47cd-a004-9cf624712114>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00342-ip-10-147-4-33.ec2... |
[Numpy-discussion] sorting -inf, nan, inf
Charles R Harris charlesr.harris at gmail.com
Tue Sep 19 19:55:17 CDT 2006
On 9/19/06, A. M. Archibald <peridot.faceted at gmail.com> wrote:
> On 19/09/06, Charles R Harris <charlesr.harris at gmail.com> wrote:
> >
> >
> >
> > For floats we could use something like:
> >
> > les... | {"url":"http://mail.scipy.org/pipermail/numpy-discussion/2006-September/010837.html","timestamp":"2014-04-18T23:45:42Z","content_type":null,"content_length":"4345","record_id":"<urn:uuid:7a9827b8-9b68-40ff-97fa-ceca20ce1dc9>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00501-ip-10-1... |
Coconut Grove, FL Algebra 2 Tutor
Find a Coconut Grove, FL Algebra 2 Tutor
I studied Biology with a minor in mathematics at Purdue University. Currently I am an adjunct instructor at a college. Most recently, I taught Algebra and Geometry at the high school level.
18 Subjects: including algebra 2, chemistry, calc... | {"url":"http://www.purplemath.com/Coconut_Grove_FL_Algebra_2_tutors.php","timestamp":"2014-04-17T10:54:41Z","content_type":null,"content_length":"24390","record_id":"<urn:uuid:92ff47c4-e73f-45dc-b759-21dad45a2041>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00574-ip-10-147-4-33.ec2... |
Basics: Proof by Contradiction
I haven’t written a basics post in a while, because for the most part, that well has run dry, but once
in a while, one still pops up. I got an email recently asking about proofs by contradiction and
counterexamples, and I thought that would be a great subject for a post. The email was rea... | {"url":"http://scienceblogs.com/goodmath/2007/11/14/basics-proof-by-contradiction/","timestamp":"2014-04-17T07:35:20Z","content_type":null,"content_length":"229532","record_id":"<urn:uuid:bd118cbe-3191-42ee-a216-d1336470046d>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00470-ip-10-... |
6.13 ALL — All values in MASK along DIM are true
ALL(MASK [, DIM]) determines if all the values are true in MASK in the array along dimension DIM.
F95 and later
Transformational function
RESULT = ALL(MASK [, DIM])
MASK The type of the argument shall be LOGICAL(*) and it shall not be scalar.
DIM ... | {"url":"http://gcc.gnu.org/onlinedocs/gcc-4.2.4/gfortran/ALL.html","timestamp":"2014-04-16T20:40:01Z","content_type":null,"content_length":"5181","record_id":"<urn:uuid:744d16a5-7bd2-4aa1-b00e-423d87abce92>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00221-ip-10-147-4-33.ec2.intern... |
Symmetry and Perturbation Theory in Nonlinear Dynamics (Lecture Notes in Physics M 57)
von Giampaolo Cicogna
Kategorie: Dynamische Systeme
ISBN: 3540659048
Synopsis This text examines the theory of Poincare-Birkhoff normal forms, studying symmetric systems in particular. Attention is focused on general Lie point sym... | {"url":"http://www.uni-protokolle.de/buecher/isbn/3540659048/","timestamp":"2014-04-19T19:45:18Z","content_type":null,"content_length":"6749","record_id":"<urn:uuid:6d56042a-80d1-4641-a9cc-51d07ba2fed8>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00623-ip-10-147-4-33.ec2.internal.w... |
Help me understand rate of twist
March 25, 2013, 05:21 PM
First, I know what 1:9 or 1:7 means, but I want to understand why its important, especially with bullet weights. For example I've read that a 1:7 twist in an AR is more desirable for a heavier bullet
than 1:9.
1. General explanation or anything I'm wrong on.
2. ... | {"url":"http://www.thehighroad.org/archive/index.php/t-710069.html&s=9af9c680ddc730151477d3b3a8bf4145&","timestamp":"2014-04-16T04:52:49Z","content_type":null,"content_length":"12452","record_id":"<urn:uuid:715363a5-fc48-43a8-8d0b-9eb309317f8f>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-... |
Pages: 1 2
Post reply
Re: Problem
24= 3x8
There must be some link...................
School is practice for the future. Practice makes perfect. But - nobody's perfect, so why practice?
Re: Problem
I know that 3^0 is not the same as 3, but it was said that we need to use 8,8,3,3 - and as you can see every of these numbe... | {"url":"http://www.mathisfunforum.com/viewtopic.php?id=128&p=2","timestamp":"2014-04-20T08:23:22Z","content_type":null,"content_length":"34397","record_id":"<urn:uuid:72ad37eb-d7c6-4223-88d5-f7a6c473480e>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00487-ip-10-147-4-33.ec2.internal.... |
Boffins solve pizza slicing dilemma
Ever worried you're getting the rough end of the stick when it comes to sharing pizza? Mathematicians have worked out the answer to one of life's cheesiest queries, New Scientists's Stephen Ornes
Lunch with a colleague from work should be a time to unwind - the most taxing task being... | {"url":"http://www.sbs.com.au/news/article/2009/12/11/boffins-solve-pizza-slicing-dilemma","timestamp":"2014-04-19T22:11:27Z","content_type":null,"content_length":"93329","record_id":"<urn:uuid:c37c1b0a-d103-412d-bee7-df6d4b39767c>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00582-... |
Stone Park Math Tutor
Find a Stone Park Math Tutor
...I also maintain high standards for myself and will periodically ask for feedback. I will never charge for a lesson the student or the parent is unsatisfied with the lesson. I am flexible with
23 Subjects: including ACT Math, reading, English, writing
...I used... | {"url":"http://www.purplemath.com/Stone_Park_Math_tutors.php","timestamp":"2014-04-19T05:07:24Z","content_type":null,"content_length":"23685","record_id":"<urn:uuid:276e3625-9c53-466b-89c1-e519c9830479>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00467-ip-10-147-4-33.ec2.internal.w... |
Design of a Circularly Polarized 2 x 2 Patch Array Operating in the 2.45 GHz ISM Band
Technical Feature
Design of a Circularly Polarized 2 x 2 Patch Array Operating in the 2.45 GHz ISM Band
The design of a corporate feed network producing a sequential rotation for a 2 x 2 circular polarized patch array is presented in ... | {"url":"http://www.microwavejournal.com/articles/3448-design-of-a-circularly-polarized-2-x-2-patch-array-operating-in-the-2-45-ghz-ism-band","timestamp":"2014-04-20T22:09:50Z","content_type":null,"content_length":"67647","record_id":"<urn:uuid:d7b99df2-ca5e-436b-8041-087c545e53d0>","cc-path":"CC-MAIN-2014-15/segments/1... |
Math Forum Discussions
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Topic: Negative, Complex Dimensions
Replies: 7 Last Post: Aug 10, 2001 3:11 AM
Messages: [ Previous | N... | {"url":"http://mathforum.org/kb/thread.jspa?threadID=73505&messageID=328928","timestamp":"2014-04-17T13:02:21Z","content_type":null,"content_length":"25932","record_id":"<urn:uuid:724949c6-d574-4013-8d99-38ce47006649>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00577-ip-10-147-4-33... |
I have to write a program to read 10 integers into an array
Newbie Poster
4 posts since Mar 2008
Reputation Points: 0 [?]
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I have to write a program to read 10 integers into an array. It will then read in one more integer. My program should then compute and output ... | {"url":"http://www.daniweb.com/software-development/cpp/threads/116338/i-have-to-write-a-program-to-read-10-integers-into-an-array","timestamp":"2014-04-18T23:17:07Z","content_type":null,"content_length":"34650","record_id":"<urn:uuid:5529b21e-1a27-4460-bb1e-4ce2482dfd1c>","cc-path":"CC-MAIN-2014-15/segments/1397609535... |
ELMRES embedded in SPARSKIT
The package sparski.tar.gz is a preliminary version of SPARSKIT with the minimal revisions necessary to use ELMRES (have to include an extra argument for pivoting, see paper on elmres above). Update
on May 15, 2001 to remove extra object files which prevent successful builds. Observe that so... | {"url":"http://ncsu.edu/hpc/Documents/Publications/gary_howell/contents.html","timestamp":"2014-04-17T03:54:08Z","content_type":null,"content_length":"14038","record_id":"<urn:uuid:ab7a9546-35ad-485c-8000-e6d5e6ed4abc>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00573-ip-10-147-4-33... |
The cool maths that games can teach you!
Come on Ryos, you just scramled for something to shut me up with
Remember, we're talking about a computer implementation algo.
How would you even define (store) an open sphere except by triangulating it or using an infinite amount of data if the aperture (opening) is irregular? ... | {"url":"http://www.mathisfunforum.com/viewtopic.php?pid=14483","timestamp":"2014-04-18T13:34:38Z","content_type":null,"content_length":"25642","record_id":"<urn:uuid:fe0d7f8c-9a00-4984-9d4c-08a36938a164>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00335-ip-10-147-4-33.ec2.internal.... |
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Given that a + b(1+x)^3 + c(1+2x)^3 + d(1+3x)^3 = x^3, find th... | {"url":"http://openstudy.com/updates/50ce116fe4b0031882dc63b3","timestamp":"2014-04-19T15:37:05Z","content_type":null,"content_length":"47008","record_id":"<urn:uuid:f749d409-a523-41e4-b8cf-b20c685da17d>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00126-ip-10-147-4-33.ec2.internal.w... |
About the definition of Borel and Radon measures
up vote 6 down vote favorite
I am trying to understand the notion of Radon measure, but I am a little bit lost with the different conventions used in the litterature. More precisely, I have a doubt about the very definition of
Borel measure.
Suppose that $(X,\mathcal{B},... | {"url":"http://mathoverflow.net/questions/109505/about-the-definition-of-borel-and-radon-measures","timestamp":"2014-04-20T06:13:47Z","content_type":null,"content_length":"68102","record_id":"<urn:uuid:06cf476d-1255-49db-bf34-51a0e83dccbf>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-2014041600521... |
De Rham-Hodge theory for L p -cohomology of infinite coverings, Topology 16
"... Given a C ∗-algebra A with a semicontinuous semifinite trace τ acting on the Hilbert space H, we define the family A R of bounded Riemann measurable elements w.r.t. τ as a suitable closure, à la
Dedekind, of A, in analogy with one of the c... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1927670","timestamp":"2014-04-16T22:51:58Z","content_type":null,"content_length":"26248","record_id":"<urn:uuid:2fb47b7c-1a46-4597-9955-83aaeee6741f>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00083-ip-10-147-4-33.ec2.internal.war... |
Binary Logarithm Template
The class template in <boost/integer/static_log2.hpp> determines the position of the highest bit in a given value. This facility is useful for solving generic programming problems.
namespace boost
typedef implementation-defined static_log2_argument_type;
typedef implementation-... | {"url":"http://www.boost.org/doc/libs/1_34_1/libs/integer/doc/static_log2.html","timestamp":"2014-04-17T14:16:16Z","content_type":null,"content_length":"7057","record_id":"<urn:uuid:f0c71c38-d6d5-4081-be5c-c7c80aa32a97>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00273-ip-10-147-4-... |
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. A 22 kg sled is pushed for 5.2 m with a horizontal force of ... | {"url":"http://openstudy.com/updates/51278b67e4b0dbff5b3d1a0d","timestamp":"2014-04-16T04:50:44Z","content_type":null,"content_length":"32601","record_id":"<urn:uuid:482c89f4-6a9a-470b-84fc-5424c5d5c0c3>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00580-ip-10-147-4-33.ec2.internal.... |