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Prove some identities! (Round two)
You're not stupid, math is hard! $\displaystyle 2\sqrt{\pi}\Gamma(2z) = 2^{2z}\Gamma(z)\Gamma(z+\tfrac12) \implies \log(2\sqrt{\pi})+\log\Gamma(2z) = \log 2^{2z} + \log\Gamma(z) + \log\Gamma(z+\
tfrac12)$ $\displaystyle \frac d{dz}\left(\log(2\sqrt{\pi})+\log\Gamma(2z)\right) = \frac ... | {"url":"http://mathhelpforum.com/math-challenge-problems/167141-prove-some-identities-round-two-6-print.html","timestamp":"2014-04-18T04:39:23Z","content_type":null,"content_length":"52970","record_id":"<urn:uuid:9d71846f-9cfb-4062-86bb-9c86ff910d15>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20... |
Higher Dimensions Database
Tapertope (EntityClass, 4)
From Higher Dimensions Database
A tapertope is any combination of Cartesian product and pyramid operations on hyperspheres. These include the hyperspheres themselves, the hypercubes, the simplices, varieties of cylinders and cones
and other combinations of the above... | {"url":"http://hddb.teamikaria.com/wiki/Tapertope","timestamp":"2014-04-20T03:11:49Z","content_type":null,"content_length":"25335","record_id":"<urn:uuid:adf5db48-fc2e-413f-a484-81dd31a8d6cd>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00538-ip-10-147-4-33.ec2.internal.warc.gz"} |
A (De)Composable Theory of Rhythm Perception
Annotation (by Bill Tilghman):
• The author proposes a method for constructing a mathematical function of event-onset expectancy projected over time from a complex temporal pattern. Given some complex temporal pattern (i.e., a
sequence of time intervals defined by the ... | {"url":"http://courses.music.indiana.edu/rhythm/annotations/desain92.html","timestamp":"2014-04-20T20:55:30Z","content_type":null,"content_length":"3013","record_id":"<urn:uuid:bf38fb69-d6f3-40eb-bd28-9c1daba4c159>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00141-ip-10-147-4-33.ec... |
Advanced compiler optimizations for sparse computations
Results 1 - 10 of 15
- Int. J. High Perf. Comput. Appl , 2002
"... The challenge for the development of next generation software is the successful management of the complex grid environment while delivering to the scientist the full power of flexible
compositions ... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=996794","timestamp":"2014-04-16T11:49:18Z","content_type":null,"content_length":"40637","record_id":"<urn:uuid:26c5c555-8aff-4b83-936a-dfbbf818579c>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00339-ip-10-147-4-33.ec2.internal.war... |
for the
, 1999
"... In this dissertation we investigate presheaf models for concurrent computation. Our aim is to provide a systematic treatment of bisimulation for a wide range of concurrent process calculi.
Bisimilarity is defined abstractly in terms of open maps as in the work of Joyal, Nielsen and Winskel. Their w... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=87332","timestamp":"2014-04-17T23:25:09Z","content_type":null,"content_length":"30724","record_id":"<urn:uuid:65a22838-872c-4976-92d7-aedb74220aa6>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00276-ip-10-147-4-33.ec2.internal.warc... |
How to Define Discrete Mathematics
Edit Article
For broader view of discrete mathematics
Edited by shariq talat, Teresa, BR, Krystle and 4 others
As there are two basic types of data "continuous" and discrete. So, in discrete mathematics we study discrete data which is not continuous or in some regular pattern.Topics i... | {"url":"http://www.wikihow.com/Define-Discrete-Mathematics","timestamp":"2014-04-18T18:18:13Z","content_type":null,"content_length":"67684","record_id":"<urn:uuid:bb42199f-1094-4dba-b226-42b0973e893e>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00472-ip-10-147-4-33.ec2.internal.war... |
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Linear and nonlinear intersubband optical properties of Si quantum dot embedd... | {"url":"http://scitation.aip.org/content/aip/journal/jap/110/11/10.1063/1.3665687","timestamp":"2014-04-19T20:20:30Z","content_type":null,"content_length":"77933","record_id":"<urn:uuid:bf81ff20-bc2d-4e4f-b3fc-f76afb304930>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00315-ip-10-14... |
May 11th 2006, 08:37 AM #1
Junior Member
Apr 2006
Who can help me with this integral? given is $\int e^{-x}sin(x)dx$
I can try it by integrations by parts thus $u=sin(x) \rightarrow \ u'=cos(x) \ \ \ v'=e^{-x} \ \rightarrow \ v=-e^{-x}$
Then $\int e^{-x}sin (x) = \ - sin (x) e^{-x}+\int e^{-x}cos(x)$
... | {"url":"http://mathhelpforum.com/calculus/2917-integral.html","timestamp":"2014-04-19T07:32:24Z","content_type":null,"content_length":"35306","record_id":"<urn:uuid:8fbdb84b-c516-433c-9007-b6075697a0ec>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00645-ip-10-147-4-33.ec2.internal.w... |
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The vertex of x2 + 4x + 4 = 0 is (-2, 0). Answer True False
... | {"url":"http://openstudy.com/updates/50c157a0e4b069388b5636ee","timestamp":"2014-04-18T16:02:00Z","content_type":null,"content_length":"39476","record_id":"<urn:uuid:1a1b8c9f-4103-4e5b-9b6d-e83c29efa883>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00632-ip-10-147-4-33.ec2.internal.... |
reimbursement methodologies
Posted by Barb on Wednesday, May 12, 2010 at 9:49pm.
Could someone check my answers to see if they are correct. Any feedback would be greatly appreciated..
Mrs. Hall was admitted to the hospital for the first time this year on September 15. On September 25, she was transferred to a skilled n... | {"url":"http://www.jiskha.com/display.cgi?id=1273715388","timestamp":"2014-04-18T16:56:57Z","content_type":null,"content_length":"12065","record_id":"<urn:uuid:af2aeb22-9bff-4332-9739-c07380d5e068>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00181-ip-10-147-4-33.ec2.internal.warc.g... |
Leonhard Euler
Leonhard Euler went to school in Basel, but the school was a rather poor one, and Euler learnt no mathematics. However his interest in mathematics had been sparked by his father's teaching, and he
read mathematics texts on his own and took some private lessons. At age 14, he was sent to the University of... | {"url":"http://www2.stetson.edu/~efriedma/periodictable/html/Er.html","timestamp":"2014-04-19T14:42:31Z","content_type":null,"content_length":"6479","record_id":"<urn:uuid:f82af6ec-b821-48c5-b3ce-2d342bde9e0f>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00265-ip-10-147-4-33.ec2.inte... |
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In an arrangement four particles, each of mass 2 gm are situat... | {"url":"http://openstudy.com/updates/52b1dab9e4b03e81ff9424f8","timestamp":"2014-04-19T12:41:13Z","content_type":null,"content_length":"30281","record_id":"<urn:uuid:39746d4f-94d1-4777-86e3-e05439707c7a>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00050-ip-10-147-4-33.ec2.internal.w... |
It All Adds Up Website
Maths takes shape
We need to be aware of the shapes and spaces all around us. They affect how we dress, arrange the furniture, decorate our homes and build the world around us!
Or... | {"url":"http://www.counton.org/resources/it-all-adds-up/content/mts.html","timestamp":"2014-04-20T10:47:09Z","content_type":null,"content_length":"8582","record_id":"<urn:uuid:fea118dc-d824-4687-9b4b-48a252b957fd>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00309-ip-10-147-4-33.ec2... |
can't differentiate my own equation!
August 28th 2009, 08:42 PM
can't differentiate my own equation!
hello all, i am in year 12 now and trying to differentiate an equation as proof that my thesis on traffic flow is accurate.
problem is i can't seem to differentiate it.
equation: Y=(1000x)/(4+(0.2x+0.001x^2)... | {"url":"http://mathhelpforum.com/calculus/99632-cant-differentiate-my-own-equation-print.html","timestamp":"2014-04-17T08:27:13Z","content_type":null,"content_length":"8015","record_id":"<urn:uuid:af616fef-4bc2-4a00-91d0-2aa37f9442bc>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-004... |
Bayesian back-propagation
Results 1 - 10 of 110
, 1993
"... This paper presents a general theoretical framework for ensemble methods of constructing significantly improved regression estimates. Given a population of regression estimators, we construct a
hybrid estimator which is as good or better in the MSE sense than ... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=834905","timestamp":"2014-04-20T14:29:26Z","content_type":null,"content_length":"36418","record_id":"<urn:uuid:8ef0700d-51a3-4b5c-880c-489724a8d1aa>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00660-ip-10-147-4-33.ec2.internal.war... |
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Topic: [ap-calculus] related rates
Replies: 1 Last Post: Oct 8, 2012 11:38 PM
Re: [ap-calculus] related rates... | {"url":"http://mathforum.org/kb/message.jspa?messageID=7903020","timestamp":"2014-04-20T09:14:06Z","content_type":null,"content_length":"15524","record_id":"<urn:uuid:84ba11f1-191e-4981-980b-5feb8e4532e6>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00543-ip-10-147-4-33.ec2.internal.... |
eds, ‘Nonlinear Programming
Results 1 - 10 of 162
- Data Mining and Knowledge Discovery , 1998
"... The tutorial starts with an overview of the concepts of VC dimension and structural risk minimization. We then describe linear Support Vector Machines (SVMs) for separable and non-separable
data, working through a non-tr... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=87095","timestamp":"2014-04-19T21:02:21Z","content_type":null,"content_length":"37752","record_id":"<urn:uuid:fbf52305-e79e-4d3b-9f93-f14fb445870f>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00238-ip-10-147-4-33.ec2.internal.warc... |
Willingboro Geometry Tutor
...This may be due to the teacher they had or they just found the subject area difficult. Therefore if that skill is needed to study other subjects the student falls behind. I believe that
reteaching is instrumental in improving student skills.
6 Subjects: including geometry, algebra 1,... | {"url":"http://www.purplemath.com/Willingboro_Geometry_tutors.php","timestamp":"2014-04-18T16:05:04Z","content_type":null,"content_length":"24296","record_id":"<urn:uuid:f56bf55d-2986-4249-91d1-b6163fedf3a7>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00319-ip-10-147-4-33.ec2.inter... |
Molecular Quantum Electrodynamics: Long-Range Intermolecular Interactions
Molecular Quantum Electrodynamics: Long-Range Intermolecular Interactions
ISBN: 978-0-470-25930-6
399 pages
November 2009
Read an Excerpt
The theory of molecular quantum electrodynamics and its application to a number of intermolecular inter... | {"url":"http://www.wiley.com/WileyCDA/WileyTitle/productCd-0470259302,subjectCd-PHG1.html","timestamp":"2014-04-17T07:20:31Z","content_type":null,"content_length":"47660","record_id":"<urn:uuid:a1065b30-5496-4442-9f86-2d8ed4163514>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00530-... |
NAG Library
C09EAF computes the two-dimensional discrete wavelet transform (DWT) at a single level. The initialization routine
must be called first to set up the DWT options.
C09EAF computes the two-dimensional DWT of a given input data array, considered as a matrix
, at a single level. For a chosen wavelet filter pair... | {"url":"http://www.nag.com/numeric/FL/nagdoc_fl24/html/C09/c09eaf.html","timestamp":"2014-04-19T15:58:37Z","content_type":null,"content_length":"25654","record_id":"<urn:uuid:8c1c9a08-c479-4fae-acb3-817cabdd6400>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00519-ip-10-147-4-33.ec2.i... |
Bellevue, WA Statistics Tutor
Find a Bellevue, WA Statistics Tutor
...I was often the go-to girl for helping my friends understand math concepts they were struggling with. I was able to figure out how to explain the concepts or problems in a way that made sense
to them. Later, I used those same skills in a math tut... | {"url":"http://www.purplemath.com/Bellevue_WA_statistics_tutors.php","timestamp":"2014-04-20T09:12:27Z","content_type":null,"content_length":"24148","record_id":"<urn:uuid:cfe73f92-5073-4aff-a889-6bd8a4a46d33>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00657-ip-10-147-4-33.ec2.int... |
Traveling Salesman Problem with Time Windows - Benchmark Data Sets
This page contains the benchmark data sets used by Jeffrey Ohlmann and Barrett Thomas in their paper "A Compressed Annealing Heuristic for the Traveling Salesman Problem with Time Windows." The paper
appears INFORMS Journal on Computing, 2007:19(1), 80 ... | {"url":"http://myweb.uiowa.edu/bthoa/TSPTWBenchmarkDataSets.htm","timestamp":"2014-04-21T12:48:37Z","content_type":null,"content_length":"6990","record_id":"<urn:uuid:665c6deb-585f-40e5-a738-953756eea37f>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00407-ip-10-147-4-33.ec2.internal... |
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For the function y=x(x−7)(x+6), what are the x and y intercept... | {"url":"http://openstudy.com/updates/515398c8e4b0b79aa94459de","timestamp":"2014-04-18T19:19:21Z","content_type":null,"content_length":"37308","record_id":"<urn:uuid:c7ac40b5-7d1b-4853-bef9-85e329438fef>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00136-ip-10-147-4-33.ec2.internal.w... |
Magnetic resonance method and system for quantification of anisotropic diffusion - Patent # 7078897 - PatentGenius
Magnetic resonance method and system for quantification of anisotropic diffusion
7078897 Magnetic resonance method and system for quant... | {"url":"http://www.patentgenius.com/patent/7078897.html","timestamp":"2014-04-20T21:27:36Z","content_type":null,"content_length":"98628","record_id":"<urn:uuid:ebf21dd1-9b57-409d-a85b-6dba0714b45b>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00159-ip-10-147-4-33.ec2.internal.warc.g... |
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Big Data Analytics in R – the tORCH has been lit!
May 22, 2013
By mhornick
This guest post from Anand Srinivasan compares performance of the Oracle R Connector for Hadoop with the R {parallel} package for covariance matrix computation, sampling, and parallel linear model
Oracle R Connector for Hadoop (ORCH) is a collec... | {"url":"http://www.r-bloggers.com/big-data-analytics-in-r-the-torch-has-been-lit/","timestamp":"2014-04-19T07:22:35Z","content_type":null,"content_length":"192355","record_id":"<urn:uuid:ae1be268-9e17-4c3b-ab69-32ad16618ca5>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00475-ip-10-1... |
Mathematical Domain Reasoning Tasks in Natural Language Tutorial Dialog on Proofs
Christoph Benzmueller, Quoc Bao Vo
We study challenges that are imposed to mathematical domain reasoning in the context of natural language tutorial dialog on mathematical proofs. The focus is on proof step evaluation: (i) How can
mathema... | {"url":"http://aaai.org/Library/AAAI/2005/aaai05-081.php","timestamp":"2014-04-18T23:24:42Z","content_type":null,"content_length":"2610","record_id":"<urn:uuid:740bf99e-a8be-49c0-9e82-6e5895ba5e5c>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00004-ip-10-147-4-33.ec2.internal.warc.gz... |
[SciPy-User] [Numpy-discussion] Fitting a curve on a log-normal distributed data
[SciPy-User] [Numpy-discussion] Fitting a curve on a log-normal distributed data
Gökhan Sever gokhansever@gmail....
Tue Nov 17 16:07:17 CST 2009
On Tue, Nov 17, 2009 at 1:37 PM, Robert Kern <robert.kern@gmail.com> wrote:
> On Tue, Nov 17, ... | {"url":"http://mail.scipy.org/pipermail/scipy-user/2009-November/023335.html","timestamp":"2014-04-20T06:12:20Z","content_type":null,"content_length":"7476","record_id":"<urn:uuid:13d265c4-70c4-44d6-9aaa-19975f324bcc>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00310-ip-10-147-4-33.... |
(I) There seems to be considerable confusion regarding the Alexanderson Network as a high frequency antenna for radio communications. I constructed the first version of such a network at the “Camp
David” Installation on 450 Overlook, Bolinas, CA. This was done from 1990 to 1994. This installation was obliterated by the... | {"url":"https://usahitman.com/tcda/","timestamp":"2014-04-17T15:42:48Z","content_type":null,"content_length":"55763","record_id":"<urn:uuid:5c99d588-ea12-44eb-b758-c1ede386a724>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00225-ip-10-147-4-33.ec2.internal.warc.gz"} |
Pearland Precalculus Tutor
...I have been tutoring for close to 5 years now on most math subjects from Pre-Algebra up through Calculus 3. I have done TA jobs where I hold sessions for groups of students to give them extra
practice on their course material and help to answer any questions that they might have, I hav... | {"url":"http://www.purplemath.com/Pearland_precalculus_tutors.php","timestamp":"2014-04-18T21:58:30Z","content_type":null,"content_length":"24036","record_id":"<urn:uuid:2867ccab-1c02-4f77-914d-96e45feda2eb>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00407-ip-10-147-4-33.ec2.inter... |
Braking Distance
Braking Distance
The braking distance is the distance that a vehicle travels while slowing to a complete stop. The braking distance is a function of several variables. First, the slope (grade) of the roadway will
affect the braking distance. If you are going uphill, gravity assists you in your attempts... | {"url":"http://www.webpages.uidaho.edu/niatt_labmanual/Chapters/geometricdesign/theoryandconcepts/BrakingDistance.htm","timestamp":"2014-04-21T04:34:37Z","content_type":null,"content_length":"7643","record_id":"<urn:uuid:45e3f934-a66b-4b7e-8f5e-7c9d56e9e8fa>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-... |
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plz help look at pic
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Bes... | {"url":"http://openstudy.com/updates/501d2efbe4b0be43870dfc21","timestamp":"2014-04-20T20:59:21Z","content_type":null,"content_length":"142738","record_id":"<urn:uuid:a4cef728-40f8-46a6-adde-bc85ad7c7c53>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00310-ip-10-147-4-33.ec2.internal... |
Daily Peloton - Pro Cycling News
Welcome to live coverage of Stage 11 of the Vuelta a Espana!
Today the riders face 165.8km of rolling terrain that should see either a break or the sprinters (or perhaps a break of sprinters again) take the day.
Please refresh this page (F5) to view the latest information. Our commentar... | {"url":"http://www.dailypeloton.com/displayarticle.asp?pk=7019","timestamp":"2014-04-18T03:14:25Z","content_type":null,"content_length":"38841","record_id":"<urn:uuid:b20cfb1e-bba7-4195-824d-cb8ad540cc68>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00266-ip-10-147-4-33.ec2.internal... |
East Brunswick Math Tutor
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...I am a certified K-12 Math Teacher with over 10 years of teaching experience and I can help your child succeed with individualized, private tutoring. In addition to having 10 years experience
as a high school and middle school math teacher, I have exten... | {"url":"http://www.purplemath.com/east_brunswick_nj_math_tutors.php","timestamp":"2014-04-19T23:28:33Z","content_type":null,"content_length":"23859","record_id":"<urn:uuid:be016f3c-0324-4aac-9ca1-4e5edf8e04b7>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00256-ip-10-147-4-33.ec2.inte... |
Lakemoor, IL Algebra 1 Tutor
Find a Lakemoor, IL Algebra 1 Tutor
...Beyond that, I'm also interested in a wide variety of subjects and I am more than willing to step outside the bounds of what I know to help a student and to better myself. Much of my
experience in tutoring has been with individuals in their late te... | {"url":"http://www.purplemath.com/Lakemoor_IL_algebra_1_tutors.php","timestamp":"2014-04-18T13:47:42Z","content_type":null,"content_length":"24270","record_id":"<urn:uuid:3134eb1d-0016-4960-8aca-94bb14426bf3>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00069-ip-10-147-4-33.ec2.inte... |
Does your culture really affect the gender distribution?
June 17, 2009
Answering the question “what does a physicist do?” can be difficult. Even the much more modest question “what do you do?” is pretty hard. Over the course of my relatively brief physics career, I
have studied sonar, traffic patterns, cloud formatio... | {"url":"http://gravityandlevity.wordpress.com/2009/06/17/does-your-culture-really-affect-the-gender-distribution/","timestamp":"2014-04-21T12:19:22Z","content_type":null,"content_length":"85164","record_id":"<urn:uuid:86db9a27-23a2-40d2-a828-6052470fc05d>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MA... |
Should folds in containers package remain INLINE
wren ng thornton wren at freegeek.org
Sun May 6 02:31:17 CEST 2012
On 5/4/12 5:01 AM, Simon Peyton-Jones wrote:
> | I know one thing I run into a lot, especially with folds but also with
> | other generic functions, is that what I really want is type class
> | specializa... | {"url":"http://www.haskell.org/pipermail/libraries/2012-May/017776.html","timestamp":"2014-04-16T23:48:43Z","content_type":null,"content_length":"5414","record_id":"<urn:uuid:79021877-e62f-4c02-92c7-56fdead66d83>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00256-ip-10-147-4-33.ec2.i... |
Thinking Skills in
Scientific Thinking Skills in Science Labs
This page describes lab activities that can help students learn thinking skills. Although most of the activities can be adapted for other subject areas, these examples are from general chemistry
It begins with Three Overviews (they're the best place for you... | {"url":"http://www.asa3.org/ASA/education/teach/lab-ex.htm","timestamp":"2014-04-19T11:58:50Z","content_type":null,"content_length":"108634","record_id":"<urn:uuid:d04b8f11-5790-47c9-a3c6-4f25e97f238a>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00604-ip-10-147-4-33.ec2.internal.wa... |
Topics in Physical Mathematics
Being a fan of mathematical physics, I was very excited to be assigned this book to review. First and foremost, I was interested in what the author meant by physical mathematics. It turned out that
this was not too hard to figure out. As the author mentions in his preface, over the course... | {"url":"http://www.maa.org/publications/maa-reviews/topics-in-physical-mathematics","timestamp":"2014-04-18T06:49:46Z","content_type":null,"content_length":"98678","record_id":"<urn:uuid:9e47a39e-ad33-4d19-823e-a07ff7c44a60>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00559-ip-10-1... |
communication function problems
November 8th 2008, 09:38 PM
communication function problems
1. Find an example of a function that produces the same image when its graph is reflected in the y axis as it does when its graph is reflected in the x axis.
2. find a function that is equal to its own inverse
3. how... | {"url":"http://mathhelpforum.com/math-topics/58450-communication-function-problems-print.html","timestamp":"2014-04-16T06:45:57Z","content_type":null,"content_length":"10797","record_id":"<urn:uuid:ea0a104b-9c7c-4928-8266-9db4d7c2ae9f>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00... |
Beecher, Penna, and Bittinger’s Algebra and Trigonometry is known for enabling students to “see the math” through its focus on visualization and early introduction to functions. With the Fourth
Edition, the authors continue to innovate by incorporating more ongoing review to help students develop their understanding an... | {"url":"http://www.mypearsonstore.com/bookstore/algebra-and-trigonometry-0321693981","timestamp":"2014-04-19T12:23:48Z","content_type":null,"content_length":"28624","record_id":"<urn:uuid:c2f578ec-b87c-439e-9cdc-ddebf77d204e>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00341-ip-10-... |
Lower Bounds for Non-Black-Box Zero Knowledge
Boaz Barak, Yehuda Lindell, and Salil Vadhan
We show new lower bounds and impossibility results for general (possibly non-black-box) zero-knowledge proofs and arguments. Our main results are that, ... | {"url":"http://people.seas.harvard.edu/~salil/research/zklower-abs.html","timestamp":"2014-04-20T18:58:31Z","content_type":null,"content_length":"4168","record_id":"<urn:uuid:3acfd130-ab91-4b5d-9b9b-35f3b9276b19>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00073-ip-10-147-4-33.ec2.... |
orthogonal polynomials and the recurrence relation
November 30th 2011, 03:28 PM #1
Senior Member
Feb 2008
orthogonal polynomials and the recurrence relation
Let $\langle\cdot,\cdot\rangle$ be an inner product on the real vector space of polynomials, and consider the set $\{p_0,\cdots,p_n,\cdots\}$ of monic orth... | {"url":"http://mathhelpforum.com/advanced-algebra/193116-orthogonal-polynomials-recurrence-relation.html","timestamp":"2014-04-17T00:57:14Z","content_type":null,"content_length":"33853","record_id":"<urn:uuid:aac14093-e144-48d7-b2ab-6f2d12a7fd59>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-2014041... |
Matrix problem - number of solutions to a linear system of equation.
September 14th 2011, 02:25 PM #1
Sep 2011
Matrix problem - number of solutions to a linear system of equation.
Determine the values of a for which the system has no solutions, exactly one solution, or infinitely many solutions.
x + 2y + z ... | {"url":"http://mathhelpforum.com/advanced-algebra/188007-matrix-problem-number-solutions-linear-system-equation.html","timestamp":"2014-04-17T23:29:43Z","content_type":null,"content_length":"37987","record_id":"<urn:uuid:c675dc17-e18c-4b1e-95c4-6a4ea9f4d2dc>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC... |
New Chicago, IN Trigonometry Tutor
Find a New Chicago, IN Trigonometry Tutor
...These guides have been used to improve scores all over the midwest. I've been tutoring test prep for 15 years, and I have a lot of experience helping students get the score they need on the
ACT. I've helped students push past the 30 mar... | {"url":"http://www.purplemath.com/New_Chicago_IN_Trigonometry_tutors.php","timestamp":"2014-04-20T02:28:35Z","content_type":null,"content_length":"24447","record_id":"<urn:uuid:3246f42a-1a99-4835-829d-fe0b51953657>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00489-ip-10-147-4-33.ec2... |
[SciPy-dev] BUG gradient in leastsq (http://projects.scipy.org/scipy/scipy/ticket/416)
[SciPy-dev] BUG gradient in leastsq (http://projects.scipy.org/scipy/scipy/ticket/416)
Alan G Isaac aisaac@american....
Thu Jul 26 10:15:40 CDT 2007
On Thu, 26 Jul 2007, dmitrey apparently wrote:
> 1. What's the difference between th... | {"url":"http://mail.scipy.org/pipermail/scipy-dev/2007-July/007553.html","timestamp":"2014-04-20T09:43:21Z","content_type":null,"content_length":"5441","record_id":"<urn:uuid:e485bf85-4046-4846-a3be-754d6fd7c72d>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00656-ip-10-147-4-33.ec2.i... |
Do you love limits?
Re: Do you love limits?
Hi Yusuke00
If f(a)>g(a), then h(x)=f(x)-g(x), otherwise, h(x)=g(x)-f(x). We can see that it is true that h(a)<0 and h(b)>0. Then, we can apply the theorem given here.
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody k... | {"url":"http://www.mathisfunforum.com/viewtopic.php?id=20200&p=2","timestamp":"2014-04-16T16:07:48Z","content_type":null,"content_length":"17580","record_id":"<urn:uuid:4f50ab2c-87ba-4746-b065-529943cf28a8>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00124-ip-10-147-4-33.ec2.interna... |
Algorithm Search (Linear Search)
I got a question on about creating this function, where I use two types of algorithm. The first algorithm would sort the list in a chronological order afterwards it's goes to the function to do a
linear search. The problem is, I am getting a syntax error and have no idea what should I d... | {"url":"http://www.dreamincode.net/forums/topic/318057-algorithm-search-linear-search/page__pid__1837605__st__0","timestamp":"2014-04-17T02:51:44Z","content_type":null,"content_length":"97571","record_id":"<urn:uuid:25a0c43b-9e01-48e8-b0f8-683ce1c077ba>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-... |
Have I shown that one real number solution exists?
November 22nd 2011, 04:58 PM #1
Jul 2011
Have I shown that one real number solution exists?
Show that there is exactly one real number $x$ for which $e^x + x = 5$. Find the integer part of this number. State any theorems you use in your solution.
My attempt... | {"url":"http://mathhelpforum.com/calculus/192511-have-i-shown-one-real-number-solution-exists.html","timestamp":"2014-04-20T08:16:40Z","content_type":null,"content_length":"46585","record_id":"<urn:uuid:83ba7993-1bb2-4ca4-9d18-b722cb0a2626>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-2014041600521... |
Line Plot
Definition of Line Plot
□ A line plot shows data on a number line with x or other marks to show frequency.
Examples of Line Plot
□ The line plot shows the types of shoes Gary has.
The count of x marks above each cateogry tells you the number of shoes Gary has of the respective ... | {"url":"http://www.northstarmath.com/SiteMap/LinePlot.html","timestamp":"2014-04-16T10:09:26Z","content_type":null,"content_length":"12916","record_id":"<urn:uuid:d68e4532-43cd-4807-a244-2f7ef443567e>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00357-ip-10-147-4-33.ec2.internal.warc... |
Making KR systems useful
- Journal of Automated Reasoning , 1995
"... We consider the problem of integrating Reiter's default logic into terminological representation systems. It turns out that such an integration is less straightforward than we expected,
considering the fact that the terminological language is a decid... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=2582219","timestamp":"2014-04-18T15:05:31Z","content_type":null,"content_length":"19595","record_id":"<urn:uuid:74713495-8cd4-48ea-983c-97c51a4b0b6b>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00646-ip-10-147-4-33.ec2.internal.wa... |
An Informal Argument for Why 0! = 1
Date: 01/13/2008 at 07:33:30
From: Miggy
Subject: why is 0 factorial 1
I don't understand why 0 factorial is 1.
Date: 01/13/2008 at 10:36:01
From: Doctor Tom
Subject: Re: why is 0 factorial 1
Hi Miggy,
Thanks for writing to Doctor Math!
There are some good technical why 0! = 1, but y... | {"url":"http://mathforum.org/library/drmath/view/71785.html","timestamp":"2014-04-19T20:41:43Z","content_type":null,"content_length":"7180","record_id":"<urn:uuid:cb977c2a-6d60-4a2c-9b89-d9b5504ecee6>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00229-ip-10-147-4-33.ec2.internal.war... |
Implication Elimination
Implication Elimination If we wish to prove a sentence of the form
P1 implies P2
then it suffices to prove P2 assuming P1 and whatever other axioms A are in force.
More formally,
A |= (P1 => P2) ----> (A and P1) |= P2
[Next] [Prev] [Home] [BHome] 12 October 1996 | {"url":"http://cseweb.ucsd.edu/groups/tatami/handdemos/doc/ielim.htm","timestamp":"2014-04-21T04:33:09Z","content_type":null,"content_length":"948","record_id":"<urn:uuid:b21901be-19e9-4bc5-9c8b-e99302eca545>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00170-ip-10-147-4-33.ec2.inter... |
Belleville, NJ Science Tutor
Find a Belleville, NJ Science Tutor
...These sessions are a helpful review of course material and I also offer study tips and test taking skills to the students. My tutoring strategies are much the same. I help students by going
over techniques, maybe introduce new ways to do certain th... | {"url":"http://www.purplemath.com/belleville_nj_science_tutors.php","timestamp":"2014-04-17T19:24:14Z","content_type":null,"content_length":"24145","record_id":"<urn:uuid:506a3d2f-7bef-4fa7-853a-946e05a79282>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00510-ip-10-147-4-33.ec2.inte... |
Public Key Cryptography with Reduced Computational Load
Patent application title: Public Key Cryptography with Reduced Computational Load
Sign up to receive free email alerts when patent applications with chosen keywords are published SIGN UP
A cryptographic me... | {"url":"http://www.faqs.org/patents/app/20130329886","timestamp":"2014-04-20T18:03:02Z","content_type":null,"content_length":"87504","record_id":"<urn:uuid:636fc720-8b0e-4618-b691-9285ad4d6438>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00310-ip-10-147-4-33.ec2.internal.warc.gz"} |
Report on the ICHM Co-Sponsored Session on the History of Mathematics
Saturday, 14 January, 2006, 2:00-6:00 pm
by Karen V.H. Parshall
This session of ten talks was co-organized by Joseph W. Dauben (City University of New York), Patti W. Hunter (Westmont College), and Karen V. H. Parshall (University of Virginia and too... | {"url":"http://www.unizar.es/ichm/reports/sanantonio.html","timestamp":"2014-04-17T21:27:20Z","content_type":null,"content_length":"13624","record_id":"<urn:uuid:21dea4eb-857a-405b-b152-031bb77fcff1>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00451-ip-10-147-4-33.ec2.internal.warc... |
Homework Help
Posted by esther on Thursday, March 31, 2011 at 9:17pm.
During the first part of a trip a canoeist travels 93 miles at a certain speed. The conoiest travels 5 miles on the second trip at 5mph slower. The total time for the trip is 2 hrs. What was the
speed on each part of the trip?
Thank you for all your ... | {"url":"http://www.jiskha.com/display.cgi?id=1301620679","timestamp":"2014-04-18T13:40:29Z","content_type":null,"content_length":"10361","record_id":"<urn:uuid:e186027d-4a9e-444c-baf6-a908755e8a54>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00255-ip-10-147-4-33.ec2.internal.warc.g... |
Investigating Special Triangles
9.2: Investigating Special Triangles
Created by: CK-12
This activity is intended to supplement Geometry, Chapter 8, Lesson 4.
Problem 1 – Investigation of $45^\circ-45^\circ-90^\circ$
First, turn on your TI-84 and press APPS. Arrow down until you see Cabri Jr and press ENTER. Open the fi... | {"url":"http://www.ck12.org/book/Texas-Instruments-Geometry-Student-Edition/r1/section/9.2/","timestamp":"2014-04-17T22:52:42Z","content_type":null,"content_length":"115746","record_id":"<urn:uuid:0ae88e8d-08a4-423e-9c2b-6b378f68c2f2>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-000... |
C and T Solution
Let a, b, and c be the sides of the triangle. Let s be the semiperimeter, i.e. s = (a + b + c) / 2. Let A be the area of the triangle, and let x be the radius of the incircle.
Divide the triangle into three smaller triangles by drawing a line segment from each vertex to the incenter. The areas of the s... | {"url":"http://www.rec-puzzles.org/index.php/C%20and%20T%20Solution","timestamp":"2014-04-18T21:05:21Z","content_type":null,"content_length":"6891","record_id":"<urn:uuid:a01b9520-2c11-4811-9510-bcad7376cedf>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00072-ip-10-147-4-33.ec2.inter... |
The Aggregate Demand Effects of Short- and Long-Term Interest Rates
Finance and Economics Discussion Series: 2012-54 Screen Reader version
The Aggregate Demand Effects of Short- and Long-Term Interest Rates
Keywords: IS curve, long-term interest rates
I develop empirical models of the U.S. economy that distinguish be... | {"url":"http://federalreserve.gov/pubs/feds/2012/201254/index.html","timestamp":"2014-04-16T07:49:28Z","content_type":null,"content_length":"116138","record_id":"<urn:uuid:73fb0b73-93da-4d75-994b-ea90233f2625>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00663-ip-10-147-4-33.ec2.int... |
xmonad-contrib-0.8.1: Third party extensions for xmonad Source code Contents Index
Portability unportable
XMonad.Actions.Plane Stability unstable
Maintainer Marco Tlio Gontijo e Silva <marcot@riseup.net>
This module has functions to navigate through workspaces in a bidim... | {"url":"http://hackage.haskell.org/package/xmonad-contrib-0.8.1/docs/XMonad-Actions-Plane.html","timestamp":"2014-04-16T19:26:26Z","content_type":null,"content_length":"13784","record_id":"<urn:uuid:ab8dee5b-f8bb-4416-b13f-1b4f01f2ef9e>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-0... |
Transmission of Sound in Open Space
Recalling the definition of decibels, we have,
Let us compare the sound intensity and pressure levels at two distances, r1 and r2 from the sound source. We have,
If r2 = 2 r1, then
In the case of industrial noise sources, the same general characteristics apply except ... | {"url":"http://personal.cityu.edu.hk/~bsapplec/transmis1.htm","timestamp":"2014-04-19T17:55:33Z","content_type":null,"content_length":"17096","record_id":"<urn:uuid:c5256f92-596c-4eea-a37e-363236ceef0d>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00491-ip-10-147-4-33.ec2.internal.w... |
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The vapour density of partially dissociated iodine at a certai... | {"url":"http://openstudy.com/updates/501a614ce4b02742c0b1bdc5","timestamp":"2014-04-20T11:01:41Z","content_type":null,"content_length":"44184","record_id":"<urn:uuid:a8d09ca2-fd87-4fba-941c-ebeaf22d084a>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00232-ip-10-147-4-33.ec2.internal.... |
Matrix Tree Formula
February 14th 2011, 06:54 AM #1
Junior Member
Feb 2010
Matrix Tree Formula
Use the Matrix-Tree Formula to compute $\tau(K_{2,n})$ for any $n \geq 1$. Can you find a combinatorial argument for your answer?
This is for a Graph Theory class, and I approached the problem by first finding tha... | {"url":"http://mathhelpforum.com/discrete-math/171245-matrix-tree-formula.html","timestamp":"2014-04-16T08:00:20Z","content_type":null,"content_length":"29392","record_id":"<urn:uuid:7038c0f1-26be-4719-a2fb-57b724ba688c>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00611-ip-10-147-4... |
Sun Valley, CA Geometry Tutor
Find a Sun Valley, CA Geometry Tutor
...Augustine High School, Our Lady of Peace Academy, and Patrick Henry High School (in San Diego, CA) for almost 10 combined years. Furthermore, in the time between my college graduation and my
matriculation to law school, I tutored full-time (appro... | {"url":"http://www.purplemath.com/sun_valley_ca_geometry_tutors.php","timestamp":"2014-04-18T13:31:41Z","content_type":null,"content_length":"24335","record_id":"<urn:uuid:67f0a978-4a4b-4f75-8f39-53deb847886e>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00120-ip-10-147-4-33.ec2.int... |
Real space correlations
Next: Reciprocal space correlations Up: Running, measuring, analyzing Previous: Measuring the melting temperature
Real space correlation functions are typically of the form
and are straightforward to obtain by molecular dynamics: one has to compute the quantity of interest
The simplest exam... | {"url":"http://www.fisica.uniud.it/~ercolessi/md/md/node39.html","timestamp":"2014-04-17T12:40:32Z","content_type":null,"content_length":"6271","record_id":"<urn:uuid:68c9768b-7629-4cc6-ad8e-53f43e97f8b2>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00529-ip-10-147-4-33.ec2.internal... |
Math Forum Discussions - Re: Safety Glasses in Algebra?
Date: Nov 15, 2012 4:48 PM
Author: Robert Hansen
Subject: Re: Safety Glasses in Algebra?
On Nov 15, 2012, at 4:11 PM, Dave L. Renfro <renfr1dl@cmich.edu> wrote:
> Since when was math class about memorization? Math has always
> involved the least amount of memoriza... | {"url":"http://mathforum.org/kb/plaintext.jspa?messageID=7923803","timestamp":"2014-04-20T16:30:22Z","content_type":null,"content_length":"1786","record_id":"<urn:uuid:000583ed-da7f-47ab-a931-f599e91cf747>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00030-ip-10-147-4-33.ec2.interna... |
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Write a polynomial division that has a quotient of x + 3 and a... | {"url":"http://openstudy.com/updates/50be15cae4b0de42629ffb8b","timestamp":"2014-04-17T00:55:32Z","content_type":null,"content_length":"35065","record_id":"<urn:uuid:bcfd04c5-da53-4549-ab46-6cf608a8b609>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00062-ip-10-147-4-33.ec2.internal.w... |
[Numpy-discussion] A new webpage promoting Compiler technology for CPython
[Numpy-discussion] A new webpage promoting Compiler technology for CPython
Massimo DiPierro massimo.dipierro@gmail....
Sat Feb 16 10:46:05 CST 2013
Thank you.
Should this be listed: https://github.com/mdipierro/ocl ?
It is based on meta (which i... | {"url":"http://mail.scipy.org/pipermail/numpy-discussion/2013-February/065506.html","timestamp":"2014-04-17T01:16:27Z","content_type":null,"content_length":"6565","record_id":"<urn:uuid:af49e25b-9310-47fe-829f-12df2ba56aae>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00317-ip-10-14... |
Waves/2-3D Problems
Waves : 2 and 3 Dimension Waves
1 - 2 - 3 - 4 - 5 - 6 - 7
1. Point A is at the origin. Point B is $3 \mbox{ m}$ distant from A a... | {"url":"http://en.m.wikibooks.org/wiki/Waves/2-3D_Problems","timestamp":"2014-04-19T07:20:59Z","content_type":null,"content_length":"26135","record_id":"<urn:uuid:f664d183-9d46-4e50-a930-5a70c5dba304>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00223-ip-10-147-4-33.ec2.internal.war... |
Bounds on the size of sets not containing a given finite pattern
up vote 6 down vote favorite
Recall the following version of Szemerédi's Theorem: let $r_k(N)$ be the largest cardinality of a subset of $[N]:=\{1,\ldots, N\}$ which does not contain an arithmetic progression of length $k$.
Then, for any $k\ge 3$, $r_k(N)... | {"url":"http://mathoverflow.net/questions/59339/bounds-on-the-size-of-sets-not-containing-a-given-finite-pattern?sort=newest","timestamp":"2014-04-19T02:35:11Z","content_type":null,"content_length":"61693","record_id":"<urn:uuid:ad5bb9aa-32c2-4cd0-8372-8b9e5ab81b92>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/... |
Cauchy-Schwarz inequality
Cauchy-Schwarz inequality
Let $V$ be a vector space where an inner product $\langle,\rangle$ has been defined. Such spaces can be given also a norm by defining
$\|x\|=\sqrt{\langle x,x\rangle}.$
Then in such a space the Cauchy-Schwarz inequality holds:
$|\langle v,w\rangle|\leq\|v\|\|w\|$
fo... | {"url":"http://planetmath.org/CauchySchwarzInequality","timestamp":"2014-04-16T07:29:43Z","content_type":null,"content_length":"84195","record_id":"<urn:uuid:91b90422-4ca3-48ff-b09c-1671ed2fed2d>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00316-ip-10-147-4-33.ec2.internal.warc.gz"... |
The Principia: Mathematical Principles of Natural Philosophy
Lowest new price: $13.15
Lowest used price: $11.87
List price: $19.99
Author: Isaac Newton
Brand: Brand: Snowball Publishing
This book is a complete volume of Newton's mathematical principles relating to natural philosophy and his system of the world. Newton... | {"url":"http://www.linuxcoding.com/skedoodle/Books/14561","timestamp":"2014-04-20T08:44:55Z","content_type":null,"content_length":"43564","record_id":"<urn:uuid:14803f9d-daab-4958-b716-0b0124320826>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00233-ip-10-147-4-33.ec2.internal.warc.... |
How about the Wadge rank of A union B when A and B are Wadge equivalent?
up vote 7 down vote favorite
We know that A is Wadge reducible to B if there is a continuous map $f$ such that A is the preimage of B via $f$, and the Wadge order is defined by $A\leq_{w}B$ if $A$ is Wagde reducible to $B$ or
$A$ is Wadge reducibl... | {"url":"http://mathoverflow.net/questions/100595/how-about-the-wadge-rank-of-a-union-b-when-a-and-b-are-wadge-equivalent","timestamp":"2014-04-19T17:42:55Z","content_type":null,"content_length":"50336","record_id":"<urn:uuid:e8571027-02c1-4398-b147-650348cedec7>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/war... |
Posts by
Total # Posts: 611
The function of the sinoatrial node is to A. keep the heart beating. B. filter lymph. C. prevent blood from backing up into the atrium. D. divide the right and left sides of the heart. The sinoatrial
node is also known as the pacemaker of the heart because it sets the pace of ...
The functi... | {"url":"http://www.jiskha.com/members/profile/posts.cgi?name=Sandy&page=6","timestamp":"2014-04-21T05:39:01Z","content_type":null,"content_length":"27544","record_id":"<urn:uuid:4106f0a0-218b-4ccf-b385-355fb7fe3a13>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00046-ip-10-147-4-33.e... |
Exponential integrators for oscillatory second-order differential equations
In this talk, we analyse a family of exponential integrators for second-order differential equations in which high-frequency oscillations in the solution are generated by a linear part. We
characterise methods which allow second-order error bou... | {"url":"http://www.newton.ac.uk/programmes/HOP/Abstract2/hochbruck.html","timestamp":"2014-04-17T18:40:54Z","content_type":null,"content_length":"2686","record_id":"<urn:uuid:3c0db7d2-8f50-468b-af58-316143940fed>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00381-ip-10-147-4-33.ec2.... |
Make Shift-Enter do a lot in ESS
October 12, 2009
By kjhealy
If you use Emacs and ESS to run R, then here’s a nice tweak I found on the Emacs Wiki. The following bit of elisp goes in your .emacs file (or equivalent). Starting with an R file in the buffer,
hitting shift-enter vertically splits the window and starts R in... | {"url":"http://www.r-bloggers.com/make-shift-enter-do-a-lot-in-ess/","timestamp":"2014-04-16T19:20:38Z","content_type":null,"content_length":"35028","record_id":"<urn:uuid:66681ae3-e14a-45f9-adcf-3c0c4c9401cd>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00191-ip-10-147-4-33.ec2.int... |
Results 1 - 10 of 18
- In 14th Annual Symposium on Logic in Computer Science , 1999
"... Syntax Involving Binders Murdoch Gabbay Cambridge University DPMMS Cambridge CB2 1SB, UK M.J.Gabbay@cantab.com Andrew Pitts Cambridge University Computer Laboratory Cambridge CB2 3QG, UK
ap@cl.cam.ac.uk Abstract The Fraenkel-Mostow... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=329504","timestamp":"2014-04-17T18:40:39Z","content_type":null,"content_length":"38824","record_id":"<urn:uuid:96e894f4-9109-4501-98aa-94d4b8090e53>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00566-ip-10-147-4-33.ec2.internal.war... |
Calculating the intersection area of 3+ circles
While attempting to learn Javascript and D3.js a couple months ago, I wrote a little library for displaying area proportional venn diagrams.
One thing this library didn't do though is consider the intersection areas of 3 or more circles when placing each set in the venn d... | {"url":"http://www.benfrederickson.com/2013/11/19/calculating-the-intersection-of-3-or-more-circles.html","timestamp":"2014-04-20T15:50:47Z","content_type":null,"content_length":"16569","record_id":"<urn:uuid:0a407899-dfbb-4a9b-90e8-4eab4dcd915f>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-201404... |
slope formula for est. regression equatios
April 8th 2009, 06:26 PM
slope formula for est. regression equatios
How is this formula derived
slope= $\frac{\sum(x_{i}-x_{0})(y_{i}-y_{0})}{\sum(x_{i}-x_{0})^2}$
This seems to give me the average ratio of the slope
I know this is one, but why is it needed?
Ap... | {"url":"http://mathhelpforum.com/statistics/82952-slope-formula-est-regression-equatios-print.html","timestamp":"2014-04-24T17:18:08Z","content_type":null,"content_length":"5660","record_id":"<urn:uuid:c74092d5-b847-47f7-93d9-c29a2c5faa1e>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-2014042303200... |
[FOM] Why would one prefer ZFC to ZC?
Roger Bishop Jones rbj at rbjones.com
Wed Jan 27 03:42:14 EST 2010
On Tuesday 26 Jan 2010 Jeremy Bem wrote:
> In a recent thread entitled "Mac Lane set theory", I tried to explain
> why I tentatively prefer ZC to ZFC (as a foundation for mathematics).
> To summarize that argument: ... | {"url":"http://www.cs.nyu.edu/pipermail/fom/2010-January/014340.html","timestamp":"2014-04-21T03:10:59Z","content_type":null,"content_length":"4683","record_id":"<urn:uuid:450d0959-da61-40c4-9d9f-8054e0a8723c>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00498-ip-10-147-4-33.ec2.int... |
Generalized Linear Models, Second Edition
Results 11 - 20 of 187
- J. Neurophysiology , 2005
"... The joint peristimulus time histogram (JPSTH) and cross-correlogram provide a visual representation of correlated activity for a pair of neurons, and the way this activity may increase or
decrease over time. In a companion... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=154555&sort=cite&start=10","timestamp":"2014-04-18T12:20:11Z","content_type":null,"content_length":"41590","record_id":"<urn:uuid:3bd92939-ead1-464c-ab19-92e448f01fd8>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00028-ip-10-147-4-... |
Mathematical and Computational Biology Major
Mathematical and computational methods are vital to many areas of contemporary biological research, such as genomics, molecular modeling, structural biology, ecology, evolutionary biology,
neurobiology, and systems biology. Conversely, biology is providing new challenges tha... | {"url":"http://www.math.hmc.edu/program/majors/math-comp-bio/","timestamp":"2014-04-19T04:19:14Z","content_type":null,"content_length":"25524","record_id":"<urn:uuid:d3babee2-9977-4ddc-8e9b-64c095c4523e>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00435-ip-10-147-4-33.ec2.internal.w... |
st: precision problems with Mata? naaaahh...
From Kit Baum <BAUM@BC.EDU>
To statalist@hsphsun2.harvard.edu
Subject st: precision problems with Mata? naaaahh...
Date Wed, 17 Aug 2005 11:05:10 -0400
Here's a Mata solution (no doubt hideously inefficient, but I can't find all the fns. I'm looking for) that appe... | {"url":"http://www.stata.com/statalist/archive/2005-08/msg00533.html","timestamp":"2014-04-21T13:08:21Z","content_type":null,"content_length":"6197","record_id":"<urn:uuid:78c7fb04-5e71-4680-b972-3b48ab0e75e8>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00208-ip-10-147-4-33.ec2.int... |
DGGE in Medical Field Teacher's Guide
DGGE is a technology that is used also in detecting mutation in human cells that causes genetic diseases. The students will search an article or journal discussing the application of DGGE in
detecting genetic disorder. In the written report, the student should discuss: 1. How the D... | {"url":"http://www.esep.umces.edu/modules/lf_teachers_guide/index.php?adminaction=view&table_id=374","timestamp":"2014-04-20T10:47:59Z","content_type":null,"content_length":"5920","record_id":"<urn:uuid:a12ce425-502b-49a5-a86a-e9a553a3605a>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-2014042303200... |
reduced fibers and openness
up vote 0 down vote favorite
Hi, everybody.
Is the following true: If $f:X\rightarrow S$ is an open (or universally open in A.G) morphism of complex spaces with pure dimensional reduced fibers over reduced base $S$. Is $X$ reduced?
Rk: The result is true for flat morphism.
Thank you.
ag.alge... | {"url":"http://mathoverflow.net/questions/75494/reduced-fibers-and-openness","timestamp":"2014-04-17T18:26:12Z","content_type":null,"content_length":"47245","record_id":"<urn:uuid:796ced9c-9d2e-401e-a9fd-b65e6633914d>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00417-ip-10-147-4-33... |
[SciPy-User] indexing array without changing the ndims
Gabriel Gellner ggellner@uoguelph...
Tue Jan 26 00:39:55 CST 2010
On Mon, Jan 25, 2010 at 10:08 PM, Warren Weckesser
<warren.weckesser@enthought.com> wrote:
> Gabriel Gellner wrote:
>> I really want an easy way to index an array but not have numpy
>> simplify the s... | {"url":"http://mail.scipy.org/pipermail/scipy-user/2010-January/023965.html","timestamp":"2014-04-18T20:58:21Z","content_type":null,"content_length":"4208","record_id":"<urn:uuid:67a25838-1a77-438e-80d9-0862e2a213cb>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00317-ip-10-147-4-33.... |
Elementary Math Tutoring/teaching
• I am interested in math and study skills tutoring for my 5th grade daughter.elementary math Tutoring & Teaching opportunities available in Dallas, TX starting at $25-$50/hr.
6 days ago from WyzAnt Tutoring
• Hello, I'm looking for a math tutor for my 10 year old daughter who... | {"url":"http://jobs.businessweek.com/a/all-jobs/list/q-Elementary+Math+Tutoring%2Fteaching/l-Grapevine%2C+TX","timestamp":"2014-04-24T21:22:41Z","content_type":null,"content_length":"27938","record_id":"<urn:uuid:96475612-718f-466d-bbec-01e3b1ff7f13>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-201... |
Patent US7499868 - Method for optimizing net present value of a cross-selling marketing campaign
This application is a continuation of U.S. application Ser. No. 09/634,624 filed Aug. 5, 2000, now U.S. Pat. No. 6,993,493 which claims the benefit of priority of U.S. Provisional Application Ser.
No. 60/147,456 filed Aug. ... | {"url":"http://www.google.com.au/patents/US7499868","timestamp":"2014-04-18T01:22:30Z","content_type":null,"content_length":"80410","record_id":"<urn:uuid:5b86abf9-c100-4e88-9383-79a8a43b728b>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00626-ip-10-147-4-33.ec2.internal.warc.gz"} |
Meaning of Irrational Exponents
Date: 03/17/97 at 21:11:51
From: Jonah Knobler
Subject: Meaning of Irrational Exponents
I am a student in an Algebra II class, and I'm wondering a bit about
exponents and roots.
We know that 2^2 is the product of 2 factors of 2, and that y^x is the
product of x factors of y. I also know... | {"url":"http://mathforum.org/library/drmath/view/52857.html","timestamp":"2014-04-16T11:38:32Z","content_type":null,"content_length":"10378","record_id":"<urn:uuid:cd58464f-570f-40d4-8737-7372ff41e808>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00394-ip-10-147-4-33.ec2.internal.wa... |
Stats: proving an equality with summations
February 2nd 2009, 09:41 AM #1
Stats: proving an equality with summations
Spent several hours trying to prove this, and now my eyes are swimming :/
I need to show that: $ns^2_{n+1} = (n-1)s^2_n + \frac{n}{n+1}(x_{n+1} - \bar{x}_n)^2$
where $\bar{x}$ is the mean, an... | {"url":"http://mathhelpforum.com/advanced-statistics/71354-stats-proving-equality-summations.html","timestamp":"2014-04-16T12:08:36Z","content_type":null,"content_length":"32350","record_id":"<urn:uuid:d9444e4b-7504-4310-acb5-5d8bdd7707a7>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-2014041600521... |
Renaissance Mathematics and Mathematicians
Following the medieval period, mathematics begins to make formidable advances in the 15th century. Mercantile forces demanded the creation of an exceptionally wealthy class of individuals. To sustain
such wealth required an infrastructure that required mathematical education a... | {"url":"http://www.math.tamu.edu/~dallen/masters/renaissance/index.htm","timestamp":"2014-04-17T03:59:59Z","content_type":null,"content_length":"5269","record_id":"<urn:uuid:98426e80-f4ed-48d5-86d6-0cbfc683c2c9>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00419-ip-10-147-4-33.ec2.i... |
Should I take an Logic course? Yes or No?
Well I'm re-taking the LSAT (for all of you who didn't know) and am highly considering this June or maybe..... October. Not sure yet!
I took a prep course which I didn't find that useful. I'm considering taking an Intro to Logic course. Has anyone taken one and did you find it ... | {"url":"http://www.lawschooldiscussion.org/index.php?topic=3001615.msg3010730","timestamp":"2014-04-18T20:52:07Z","content_type":null,"content_length":"47071","record_id":"<urn:uuid:6eca49d0-0e11-49f6-821c-a9435be12e61>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00565-ip-10-147-4-3... |
188 helpers are online right now
75% of questions are answered within 5 minutes.
is replying to Can someone tell me what button the professor is hitting...
• Teamwork 19 Teammate
• Problem Solving 19 Hero
• Engagement 19 Mad Hatter
• You have blocked this person.
• ✔ You're a fan Checking fan status...
Thanks... | {"url":"http://openstudy.com/users/clubcanthandlekg/medals","timestamp":"2014-04-17T18:48:51Z","content_type":null,"content_length":"61225","record_id":"<urn:uuid:0151fadc-ced4-479c-9d1d-6564f201298d>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00656-ip-10-147-4-33.ec2.internal.war... |
Vertical circular motion
Common examples include:
• roller coasters
• water buckets
• cars traveling on hilly roads
We use DID TASC to analyze all these problems.
The Water Bucket
Step 1: Draw a diagram and coordinate syste... | {"url":"http://physics.bu.edu/~redner/211-sp06/class-circular/vertical.html","timestamp":"2014-04-20T16:54:42Z","content_type":null,"content_length":"6511","record_id":"<urn:uuid:74e99205-cdf8-4b98-8175-54e1b4b8eb84>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00374-ip-10-147-4-33.... |
distance regular metric spaces
up vote 12 down vote favorite
A metric space (V,d) will be called distance regular if for every distances a>0, b, c a nonnegative integer p(a,b,c) is defined, so that whenever d(B,C)=a, there are precisely p(a,b,c) points A such
that d(A,B)=c, d(A,C)=b.
The Euclidean plane is an example: ... | {"url":"http://mathoverflow.net/questions/9957/distance-regular-metric-spaces","timestamp":"2014-04-16T22:44:24Z","content_type":null,"content_length":"72330","record_id":"<urn:uuid:eb7c23c4-222b-45fe-bbc1-ee2bc2962d0d>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00623-ip-10-147-4-3... |
Capital Budgeting Problems- NPV, IRR, Payback
1. 424693
Capital Budgeting Problems- NPV, IRR, Payback
See attached file for tables.
1) Last month, Lloyd's Systems analyzed the project whose cash flows are shown below. However, before the decision to accept or reject the project took place, the Federal Reserve changed ... | {"url":"https://brainmass.com/business/capital-budgeting/424693","timestamp":"2014-04-18T19:04:56Z","content_type":null,"content_length":"27339","record_id":"<urn:uuid:96734fd6-e3f0-401c-b75f-6360e24ed2ef>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00350-ip-10-147-4-33.ec2.internal... |
Research Institute for Mathematical Sciences
Ambrus Pal 氏(Imperial College)連続講義のご案内
Special values of p-adic L-functions in positive characteristic
京都大学数理解析研究所２０２号室（火）, ００９号室（水・木）, １１５号室（金）（曜日によって部屋が異なるのでご注意下さい。）
Ambrus Pal (Imperial College)
In spite of their importance, there has not been a real breakthrough on the c... | {"url":"http://www.kurims.kyoto-u.ac.jp/en/seminar/seminar-yamashita.html","timestamp":"2014-04-18T16:09:16Z","content_type":null,"content_length":"6462","record_id":"<urn:uuid:11820ec3-da59-42c0-b884-d1a7f450a9c5>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00038-ip-10-147-4-33.ec... |