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Odds and ends: the 2010 Joint Mathematics Meeting and Euler's Gem
Posted by: Dave Richeson | January 5, 2010
Odds and ends: the 2010 Joint Mathematics Meeting and Euler’s Gem
I’ll be heading to the 2010 Joint Mathematics Meeting in San Francisco next week. In case any of you are interested in meeting up, here are a few... | {"url":"http://divisbyzero.com/2010/01/05/odds-and-ends-the-2010-joint-mathematics-meeting-and-eulers-gem/","timestamp":"2014-04-17T09:55:35Z","content_type":null,"content_length":"64768","record_id":"<urn:uuid:d3cde9a3-643a-408b-bfe8-a5ea2d3c7537>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-2014... |
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Topic: common core geometry question
Replies: 4 Last Post: Apr 6, 2012 4:42 AM
Messages: [ Previous | N... | {"url":"http://mathforum.org/kb/message.jspa?messageID=7648897","timestamp":"2014-04-21T05:05:40Z","content_type":null,"content_length":"22679","record_id":"<urn:uuid:76b556f7-80cf-40ff-9e1b-f7241262f02a>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00577-ip-10-147-4-33.ec2.internal... |
pari-2.3.2 released
Karim Belabas on Wed, 28 Mar 2007 17:55:00 +0200
[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]
Dear PARI lovers,
I would like to announce the release of pari-2.3.2 (STABLE). The sources and
a Windows binary are available from
This is a BUGFIX release for the stable ... | {"url":"http://pari.math.u-bordeaux.fr/archives/pari-announce-07/msg00000.html","timestamp":"2014-04-20T03:26:10Z","content_type":null,"content_length":"7948","record_id":"<urn:uuid:64e89c3e-95c8-4891-893b-9578e57ee9ba>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00067-ip-10-147-4-... |
Summer 2012
Seminar on Blow-up in Dynamical Systems
Prof. Dr. Bernold Fiedler, Dr. Stefan Liebscher, Hannes Stuke
July 14-18, 2012, Preliminary discussion will be at the 08.05.12 after the lecture
Recent PDE research was mainly dominated by the question of existence and regularity of solutions of certain PDEs. But in a... | {"url":"http://dynamics.mi.fu-berlin.de/lectures/12SS-Fiedler-Seminar/","timestamp":"2014-04-19T09:25:39Z","content_type":null,"content_length":"10513","record_id":"<urn:uuid:1e4379f8-9d4a-45e5-a6b7-1eaae0ce5a90>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00021-ip-10-147-4-33.ec2.... |
Estimate mean and std dev?
April 8th 2009, 11:50 AM #1
Mar 2009
A random sample of 13 observations from a population yielded $\sum$ x=488.8 and $\sum$$x^2$ = 18950.2. Estimate $\mu$ and $\sigma.$
I can't find this in my notes, I think $\sum$ x = 488.8 would be the sum of the sample, not sure where to go fro... | {"url":"http://mathhelpforum.com/advanced-statistics/82900-estimate-mean-std-dev.html","timestamp":"2014-04-16T19:16:45Z","content_type":null,"content_length":"50162","record_id":"<urn:uuid:97bafda2-7bd3-4327-b68c-6cd20ff2b7a1>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00117-ip-10... |
Notes on Batteries
Duration under Load
Calculating how long a battery will last at a given rate of discharge is not as simple as "amp-hours" - battery capacity decreases as the rate of discharge increases. For this reason, battery
manufacturers prefer to rate their batteries at very low rates of discharge, as they last... | {"url":"http://gizmology.net/batteries.htm","timestamp":"2014-04-18T00:12:30Z","content_type":null,"content_length":"7683","record_id":"<urn:uuid:6c259f35-db08-45b8-be8a-6625ec492180>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00028-ip-10-147-4-33.ec2.internal.warc.gz"} |
matrix multiplication
Results 1 - 10 of 34
, 1984
"... Given a primitive element g of a finite field GF(q), the discrete logarithm of a nonzero element u GF(q) is that integer k, 1 k q - 1, for which u = g k . The well-known problem of computing
discrete logarithms in finite fields has acquired additional importance in... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=658937","timestamp":"2014-04-18T17:39:17Z","content_type":null,"content_length":"34942","record_id":"<urn:uuid:a8dc2fda-28b1-49fc-8141-2322eeba7d45>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00603-ip-10-147-4-33.ec2.internal.war... |
The College Mathematics Journal - November 1999
Contents for November 1999
Things I Have Learned at the AP Reading
by Dan Kennedy
Elementary calculus contains subtleties, which sometimes even those who construct problems for the calculus Advanced Placement test can overlook. You may be able to think of an example o... | {"url":"http://www.maa.org/publications/periodicals/college-mathematics-journal/college-mathematics-journal-contents-november-9","timestamp":"2014-04-16T08:45:00Z","content_type":null,"content_length":"100955","record_id":"<urn:uuid:93ba9640-f2a4-4ca9-bbfc-6e9d9c7eb31b>","cc-path":"CC-MAIN-2014-15/segments/139760952155... |
Lecture 2: Differential Eqns and Difference Eqns
The following content is provided under a Creative Commons license. Your support will help MIT OpenCourseWare offer high quality educational resources for free. To make a donation or to view
additional materials from hundreds of MIT courses, visit MIT OpenCourseWare at o... | {"url":"http://ocw.mit.edu/courses/mathematics/18-085-computational-science-and-engineering-i-fall-2008/video-lectures/lecture-2-differential-eqns-and-difference-eqns/","timestamp":"2014-04-17T09:35:45Z","content_type":null,"content_length":"91309","record_id":"<urn:uuid:ccce9169-8612-42d7-ac11-1814b92ba6a6>","cc-path"... |
Before we solve this rounding problem, we must first know that one divided by three is.
Luckily, (1/3) is a very well known fraction with a very simple and easy to find answer as well:
(1/3) = 0.3333333333….
The threes continue on forever, but for this problem we’re only concerned with the first four decimal places. Th... | {"url":"http://rapgenius.com/annotations/for_profile_page?id=BennyMoss&page=6&user_id=109850","timestamp":"2014-04-21T03:46:49Z","content_type":null,"content_length":"88481","record_id":"<urn:uuid:f2515822-259f-49d9-8e46-8fc869308ff7>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-004... |
Queensgate, WA Geometry Tutor
Find a Queensgate, WA Geometry Tutor
...I've helped many students with their math and improved their grades. If you don't understand something or can't solve an algebra problem, I can simplify it until you get it and solve it all by
yourself. I enjoy tutoring Algebra 2, trying to make ... | {"url":"http://www.purplemath.com/Queensgate_WA_geometry_tutors.php","timestamp":"2014-04-17T21:33:38Z","content_type":null,"content_length":"24280","record_id":"<urn:uuid:7db7fc52-d680-4ec1-8a12-5bb68bd3f7c2>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00530-ip-10-147-4-33.ec2.inte... |
PS 6 SOLUTIONS
1. True or False (3 points each – 18 total)
a. False. Under a fixed exchange rate regime, interest rates are fixed. Therefore, an increase in G will not crowd out investment, and the increase in Y will be larger than under a flexible regime.
b. True. Under a fixed exchange rate, the central bank ca... | {"url":"http://web.mit.edu/course/14/14.02/www/F00/f00_ps6ans.htm","timestamp":"2014-04-19T17:22:16Z","content_type":null,"content_length":"21631","record_id":"<urn:uuid:49151f2b-372f-4860-9b55-e42b4fad64ec>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00332-ip-10-147-4-33.ec2.inter... |
James T. Kirby
Tsung-Muh Chen
MARCH, 1988
Pacific Marine Environmental Laboratory
7600 Sand Point Way N.E.
Seattle, WA 98115
COASTAl & OCEANOqRAphic ENCqiNEERiNq dEpARTMENT
Gainesville, Florida 32611
James T. Kirby
Tsung-Muh Chen
MARCH, 1988
Pacific Marine Environmental Laboratory
7600 Sand Point Way N.E.
Seattle, WA 9... | {"url":"http://ufdc.ufl.edu/UF00075471/00001","timestamp":"2014-04-19T12:20:55Z","content_type":null,"content_length":"94487","record_id":"<urn:uuid:c48320d7-815d-473e-85d1-3ce2811a47b3>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00156-ip-10-147-4-33.ec2.internal.warc.gz"} |
Integer Power Algorithm
One of the old chestnuts of mathematical algorithms. Problem: Find x^n where x is real and n is a positive integer, using a minimal number of multiplications. Algorithm in Scheme:
(define (square x) (* x x))
(define (power x n)
((= n 0) 1)
((evenp n) (power (square x) (/ n 2)))
... | {"url":"http://c2.com/cgi/wiki?IntegerPowerAlgorithm","timestamp":"2014-04-18T18:43:33Z","content_type":null,"content_length":"6818","record_id":"<urn:uuid:92d869c1-56c1-4b8e-88c9-d842ea159101>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00607-ip-10-147-4-33.ec2.internal.warc.gz"} |
Another troubleshooting challenge [Archive] - LawnSite.com™ - Lawn Care & Landscaping Business Forum, Discuss News & Reviews
08-25-2010, 12:09 PM
Have you ever wondered how changes in transformer input voltage affect the total amperage draw? This is good to know so you can evaluate changes in amperage readings.
Say, f... | {"url":"http://www.lawnsite.com/archive/index.php/t-327204.html","timestamp":"2014-04-17T07:21:09Z","content_type":null,"content_length":"23396","record_id":"<urn:uuid:701a47c9-f4e6-4dd5-bffb-d0ace2673be4>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00097-ip-10-147-4-33.ec2.interna... |
Which Spheres are Complex Manifolds?
up vote 3 down vote favorite
Possible Duplicate:
complex structure on S^n
The two sphere $S^2$ is a real manifold of dimension $2$, while the three sphere $S^3$ is a real manifold of dimension $3$. Now $S^2$ is a complex manifold, while $S^3$ being odd dimensional is not.
Is... | {"url":"http://mathoverflow.net/questions/29964/which-spheres-are-complex-manifolds?sort=oldest","timestamp":"2014-04-20T13:51:39Z","content_type":null,"content_length":"52031","record_id":"<urn:uuid:7185615f-57a4-4b9d-a652-38a7a1b10c68>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-... |
On the Unique Games Conjecture (part 2)
[I am preparing a survey talk on Unique Games for a mathematics conference, and writing a survey paper for a booklet that will be distributed at the conference. My first instinct was to write a
one-line paper that would simply refer to Subhash's own excellent survey paper. Fearin... | {"url":"http://lucatrevisan.wordpress.com/2010/11/20/on-the-unique-games-conjecture-part-2/","timestamp":"2014-04-17T15:30:52Z","content_type":null,"content_length":"127245","record_id":"<urn:uuid:fcb251fb-fc8e-479b-937b-0cc56a4df81a>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-0050... |
East Lake, CO Algebra Tutor
Find an East Lake, CO Algebra Tutor
...I love teaching and tutor in a way that pin-points the root cause. If your child is reading at a level a few grades behind, we will start from the level and slowly work up to their expected
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Mathematics 256
Mathematics 256 - Fall 1997
Differential equations for engineers
Section 101: Dr. Casselman, Math Annex 1100, 8:30 MWF
Section 102: Dr. Ward, Math Annex 1100, 1:30 MWF
Dr. Casselman and Dr. Feldman and are just now beginning to prepare the text and lab notes for the fall term. In the meantime, you migh... | {"url":"http://www.math.ubc.ca/~cass/courses/m256-7b.html","timestamp":"2014-04-16T22:03:29Z","content_type":null,"content_length":"3274","record_id":"<urn:uuid:af1c90af-b9b3-4647-88c2-0dc34e037877>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00572-ip-10-147-4-33.ec2.internal.warc.g... |
Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text o... | {"url":"http://www.nap.edu/openbook.php?record_id=1742&page=16","timestamp":"2014-04-18T01:12:52Z","content_type":null,"content_length":"75227","record_id":"<urn:uuid:3cdde77a-5e7b-4eee-969a-8f21b48d57d5>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00661-ip-10-147-4-33.ec2.internal... |
Reactance Sentence Examples
• Reactance of a capacitor and the phase relationship between p.d. and current.
• Each of the elements has a variable reactance which must be altered to produce the desired performance.
• However, there is enough capacitive reactance to cause a significant phase shift in the current th... | {"url":"http://sentence.yourdictionary.com/reactance","timestamp":"2014-04-18T13:11:33Z","content_type":null,"content_length":"43446","record_id":"<urn:uuid:556bf880-126c-4332-8b32-8bb54b2ee3ad>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00013-ip-10-147-4-33.ec2.internal.warc.gz"} |
Lagrangian Mechanics
Lagrangian Mechanics is the reformulation of Newtonian Mechanics that utilizes the Lagrangian defined by
T= total kinetic energy of a system of particles
U= sum of the potential energy functions of a system of particles
In other branches of physics, the Lagrangian is defined as the function
L: TQ--... | {"url":"http://www.urbandictionary.com/define.php?term=Lagrangian%20Mechanics","timestamp":"2014-04-20T17:39:02Z","content_type":null,"content_length":"41854","record_id":"<urn:uuid:443d28e0-3b8c-41ed-a68e-3bb0cfa3a9b8>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00283-ip-10-147-4-... |
Billerica SAT Math Tutor
Find a Billerica SAT Math Tutor
My tutoring experience has been vast in the last 10+ years. I have covered several core subjects with a concentration in math. I currently hold a master's degree in math and have used it to tutor
a wide array of math courses.
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Simplify the integral (is my version correct?)
April 5th 2011, 12:01 PM #1
Simplify the integral (is my version correct?)
Basically I am asked to simplify the integral by going to polar coordinates. But professor's summary is not available at this moment, so I'm afraid I might be doing something wrong, because this... | {"url":"http://mathhelpforum.com/calculus/176915-simplify-integral-my-version-correct.html","timestamp":"2014-04-21T13:19:00Z","content_type":null,"content_length":"35923","record_id":"<urn:uuid:86f0e303-5cc3-4a36-91aa-107d3dee66e7>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00536... |
Series help
June 21st 2006, 04:40 AM #1
Junior Member
May 2006
Sydney, Australia
Series help
I have this formula:
${c_n}^2 = \frac{1}{2}{c_{n-1}}^2$
How do I convert this to a series with $\sum$
From n = 1 to n = 10
I have this formula:
${c_n}^2 = \frac{1}{2}{c_{n-1}}^2$
How do I con... | {"url":"http://mathhelpforum.com/algebra/3561-series-help.html","timestamp":"2014-04-16T20:35:14Z","content_type":null,"content_length":"66684","record_id":"<urn:uuid:ac31ee03-d1ba-4681-8b37-bd2394516bb2>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00238-ip-10-147-4-33.ec2.internal... |
The Rapid Evaluation of Potential Fields in Particle Systems
Results 1 - 10 of 261
- INTERNATIONAL SYMPOSIUM ON COMPUTER ARCHITECTURE , 1995
"... The SPLASH-2 suite of parallel applications has recently been released to facilitate the study of centralized and distributed shared-address-space multiprocessors. In this co... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=142836","timestamp":"2014-04-21T03:40:26Z","content_type":null,"content_length":"38218","record_id":"<urn:uuid:1566eb4d-fc7b-4e6b-b417-db06dc53a9a0>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00387-ip-10-147-4-33.ec2.internal.war... |
Roundtrip to Shanghai via Tokyo
In my previous post, I explained the basic concept of multi_type_vector – one of the two new data structures added to mdds in the 0.6.0 release. In this post, I’d like to explain a bit more about
multi_type_matrix – the other new structure added in the aforementioned release. It is also ... | {"url":"http://kohei.us/tag/code-snippet/","timestamp":"2014-04-19T14:32:45Z","content_type":null,"content_length":"217681","record_id":"<urn:uuid:aeb16fad-b4aa-4f6e-bfe6-f982b54722d6>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00507-ip-10-147-4-33.ec2.internal.warc.gz"} |
Mathsland National Lottery
Copyright © University of Cambridge. All rights reserved.
Derin from Woodhouse College gave a clear presentation of his reasoning:
At first draw, there are 6 balls in the bag, any one of your 3 numbers needs to be picked, this gives you a $\frac{3}{6}$ chance (or $\frac{1}{2}$).
For your se... | {"url":"http://nrich.maths.org/7238/solution?nomenu=1","timestamp":"2014-04-19T02:41:39Z","content_type":null,"content_length":"7090","record_id":"<urn:uuid:f0159c6b-d4e7-4251-980d-75214c31300a>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00590-ip-10-147-4-33.ec2.internal.warc.gz"} |
n-Transport and Higher Schreier Theory
Posted by Urs Schreiber
We are interested in categorifying the notion of parallel transport in a fiber bundle with connection.
There are several ways to define an ordinary connection on an ordinary bundle. Depending on which of these we start with, we end up with categorifications... | {"url":"http://golem.ph.utexas.edu/category/2006/09/nconnections_and_higher_schrei.html","timestamp":"2014-04-20T13:36:51Z","content_type":null,"content_length":"54346","record_id":"<urn:uuid:25352c15-e1d2-4942-8620-dccb1bad74a9>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00087-ip... |
IntroductionNoise Sources in EMG SignalsInherent Noise in the ElectrodeMovement ArtifactElectromagnetic NoiseCross TalkInternal NoiseInherent Instability of the SignalElectrocardiographic (ECG) ArtifactsEMG Signal ProcessingWavelet AnalysisHigher Order Statistics (HOS)Empirical Mode Decomposition (EMD)Artificial Neural... | {"url":"http://www.mdpi.com/1424-8220/13/9/12431/xml","timestamp":"2014-04-16T08:38:31Z","content_type":null,"content_length":"214473","record_id":"<urn:uuid:24ea3a20-803c-4a66-a549-a41c20e033dc>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00345-ip-10-147-4-33.ec2.internal.warc.gz"} |
[Haskell-cafe] Type constructor variables no longer injective in GHC 7.2.1?
[Haskell-cafe] Type constructor variables no longer injective in GHC 7.2.1?
Daniel Schüssler anotheraddress at gmx.de
Fri Oct 21 12:04:02 CEST 2011
Hello Cafe,
say we take these standard definitions:
> {-# LANGUAGE GADTs, TypeOperators, TypeFam... | {"url":"http://www.haskell.org/pipermail/haskell-cafe/2011-October/096221.html","timestamp":"2014-04-19T18:37:55Z","content_type":null,"content_length":"4697","record_id":"<urn:uuid:9beb9fd8-bb1b-4e06-96be-c4954ce4b74b>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00335-ip-10-147-4-... |
PIRSA - Perimeter Institute Recorded Seminar Archive
The power of epistemic restrictions in reconstructing quantum theory
Abstract: A significant part of quantum theory can be obtained from a single innovation relative to classical theories, namely, that there is a fundamental restriction on the sorts of statistical
di... | {"url":"http://pirsa.org/09080009","timestamp":"2014-04-20T11:29:09Z","content_type":null,"content_length":"9054","record_id":"<urn:uuid:33ac5e50-5a87-4ba2-b595-5276cb1eae05>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00317-ip-10-147-4-33.ec2.internal.warc.gz"} |
Lower Bounds on Near Neighbor Search via Metric Expansion
Rina Panigrahy, Kunal Talwar, and Udi Wieder
October 2010
In this paper we show how the complexity of performing nearest neighbor (NNS) search on a metric space is related to the expansion of the metric space. Given a metric space we look at the graph
obtained b... | {"url":"http://research.microsoft.com/apps/pubs/default.aspx?id=139208","timestamp":"2014-04-21T12:21:35Z","content_type":null,"content_length":"12604","record_id":"<urn:uuid:798e269e-2254-47f9-95ed-0649593e3a5e>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00657-ip-10-147-4-33.ec2.... |
- -
Please install Math Player to see the Math Symbols properly
Click on a 'View Solution' below for other questions:
e Name the fraction equivalent to 49. View Solution
e Simplify the fraction 1221 and choose an equivalent fraction of the simplified fraction. e View Solution
e In a class of 90 students, 40 students... | {"url":"http://www.icoachmath.com/solvedexample/sampleworksheet.aspx?process=/__cstlqvxbefxdxbgdfmxkhjkg&.html","timestamp":"2014-04-17T18:25:13Z","content_type":null,"content_length":"98124","record_id":"<urn:uuid:55d006ff-978a-4c1b-8bac-c146d3458aaf>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-... |
Selling Multiple Items - Problem 2
In this problem, two different people are selling two different products. What I’m going to do is try and break it down so that I can have two equations with two unknowns and solve it like a system
of equations, hopefully I can do the Math better than I can speak it good, here we go.
... | {"url":"https://www.brightstorm.com/math/algebra/word-problems-using-systems-of-equations/selling-multiple-items-problem-2/","timestamp":"2014-04-16T07:33:34Z","content_type":null,"content_length":"61271","record_id":"<urn:uuid:3dea3616-b5bc-4d98-9c62-f705eca561aa>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/... |
Riegelsville Prealgebra Tutor
Find a Riegelsville Prealgebra Tutor
...Feel free to send me an e-mail if you're interested in my tutoring services. My hours are listed, but I am willing to work on a time that will be mutually agreeable for both teacher and
student. I look forward to helping you enhance your learning... | {"url":"http://www.purplemath.com/Riegelsville_Prealgebra_tutors.php","timestamp":"2014-04-17T10:59:21Z","content_type":null,"content_length":"24233","record_id":"<urn:uuid:0cc71401-f487-468a-8d5d-fd407671af2f>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00265-ip-10-147-4-33.ec2.int... |
Extended anti-Hebbian adaptation for unsupervised source extraction
- Neural Computing Surveys , 2001
"... A common problem encountered in such disciplines as statistics, data analysis, signal processing, and neural network research, is nding a suitable representation of multivariate data. For
computational and concept... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1028171","timestamp":"2014-04-17T05:24:49Z","content_type":null,"content_length":"30624","record_id":"<urn:uuid:97546811-01a5-4607-9280-eb89485a18b9>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00023-ip-10-147-4-33.ec2.internal.wa... |
Results 11 - 20 of 858
- Machine Learning , 1997
"... We discuss Bayesian methods for learning Bayesian networks when data sets are incomplete. In particular, we examine asymptotic approximations for the marginal likelihood of incomplete data given
a Bayesian network. We consider the Laplace approximation and the less ... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=13772&sort=cite&start=10","timestamp":"2014-04-19T02:03:41Z","content_type":null,"content_length":"40329","record_id":"<urn:uuid:58066dca-76d3-42da-b21e-452e21904694>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00535-ip-10-147-4-33... |
of the Mass
┃ ┃
┃ San José State University ┃
... | {"url":"http://www.sjsu.edu/faculty/watkins/massdeficits.htm","timestamp":"2014-04-19T15:34:32Z","content_type":null,"content_length":"19494","record_id":"<urn:uuid:6764c209-1d11-4da2-8d73-61fe001a2150>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00019-ip-10-147-4-33.ec2.internal.wa... |
November 18th 2008, 03:01 PM
We have two pairs of parallel lines in R^2 defined by the linear equations below:
a1x + b1y = r1
a1x + b1y = s1
a2x + b2y = r2
a2x + b2y = s2
We assume that these lines enclose a parallelogram P. Find the very simplest formula for the area of P in terms of a1, b1, a2... | {"url":"http://mathhelpforum.com/advanced-algebra/60306-parallelogram-print.html","timestamp":"2014-04-19T21:37:46Z","content_type":null,"content_length":"3342","record_id":"<urn:uuid:e98e5a77-b785-4003-a3d9-cb86c62332b8>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00645-ip-10-147-... |
MWISD – making students hungry for Pi
Mineral Wells Index, Mineral Wells, TX
March 10, 2013
MWISD – making students hungry for Pi
Mineral Wells Index
— By LIBBY CLUETT
March is a month full of celebration, and many math aficionados have their sites on next week's Pi Day, a worldwide celebration of the mathematical cons... | {"url":"http://www.mineralwellsindex.com/topstory/x2045492424/MWISD-making-students-hungry-for-Pi/print","timestamp":"2014-04-16T23:11:44Z","content_type":null,"content_length":"3905","record_id":"<urn:uuid:75d99cb1-dfaa-4399-9f97-53e29fd93bd6>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-201404160... |
gas constant
Definitions for gas constant
This page provides all possible meanings and translations of the word gas constant
Princeton's WordNet
1. gas constant, universal gas constant, R(noun)
(physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules... | {"url":"http://www.definitions.net/definition/gas%20constant","timestamp":"2014-04-19T02:28:53Z","content_type":null,"content_length":"25539","record_id":"<urn:uuid:9d559c46-ffc5-450c-add4-104fbb688e41>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00594-ip-10-147-4-33.ec2.internal.wa... |
My Leader Bike Build
* ♥ 4
Nov 23
Rule #12 / The correct number of bikes to own is n+1.
While the minimum number of bikes one should own is three, the correct number is n+1, where n is the number of bikes currently owned. This equation may also be re-written as s-1, where s is the
number of bikes owned that would resu... | {"url":"http://myleader725.tumblr.com/post/13238381732/rule-12-the-correct-number-of-bikes-to-own-is-n-1","timestamp":"2014-04-20T00:58:50Z","content_type":null,"content_length":"31831","record_id":"<urn:uuid:525a61cf-5c6f-43ea-ae55-d9b3f87b2a49>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-2014042... |
How were the speed of sound and the speed of light determined and measured?
Chris Oates, a physicist in the Time and Frequency Division of the National Institute of Standards and Technology (NIST), explains.
Despite the differences between light and sound, the same two basic methods have been used in most measurements ... | {"url":"http://www.scientificamerican.com/article/how-were-the-speed-of-sou/","timestamp":"2014-04-18T07:02:00Z","content_type":null,"content_length":"63144","record_id":"<urn:uuid:21f14c20-1b65-49b4-9232-559f9d9298d6>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00255-ip-10-147-4-3... |
differentiable function
January 8th 2011, 07:58 AM
differentiable function
I must prove that the function f(x) is continuously differentiable function (just first derivate) on interval (-1,1).
$f(x)=exp(\frac{1}{x^2-1}) \ |x|<1 , \ 0$ for all other values.
I do that:
$f(x)=e^{\frac{1}{x^2-1}}=e^u \ [u(x... | {"url":"http://mathhelpforum.com/calculus/167771-differentiable-function-print.html","timestamp":"2014-04-23T20:54:19Z","content_type":null,"content_length":"14831","record_id":"<urn:uuid:c3eefa8b-26b5-4772-8124-212ecdeb3ddd>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00092-ip-10-1... |
Math Exercise, Problem, and Investigation
As teachers, it is important that we vary the mathematical activities we give our students. The learning that takes place in the classroom is, in one way or another, affected by the kind of tasks
that we give our students. These tasks may be differentiated into three: exercises... | {"url":"http://mathandmultimedia.com/2011/04/07/math-exercise-problem-and-investigation/","timestamp":"2014-04-16T07:39:16Z","content_type":null,"content_length":"347149","record_id":"<urn:uuid:c79ecbed-6766-4e70-99bc-b7896f0ca38e>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00452-... |
Electrodynamics/Lorentz Transformation
Fields and ForcesEdit
The forces caused by electric and magnetic fields are mostly what we can actually measure in electromagnetism. These vector quantities are related to the scalar and vector potentials as follows:
$\mathbf{E} = -abla \phi - \frac{\partial \mathbf{A}}{\parti... | {"url":"http://en.m.wikibooks.org/wiki/Electrodynamics/Lorentz_Transformation","timestamp":"2014-04-17T18:57:23Z","content_type":null,"content_length":"21434","record_id":"<urn:uuid:6b8b6fcc-e2dd-41bc-bf86-3c06fb23575d>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00524-ip-10-147-4-... |
Stack and Queues questions
03-29-2011 #1
Registered User
Join Date
Mar 2011
Stack and Queues questions
I am preparing for a test and have answered some questions dealing with stacks and queues the teacher has provided as samples. Could someone check over my work?
// stack.h – complete header file for Stack ... | {"url":"http://cboard.cprogramming.com/cplusplus-programming/136336-stack-queues-questions.html","timestamp":"2014-04-17T10:52:25Z","content_type":null,"content_length":"91860","record_id":"<urn:uuid:ab247bea-4d6d-4519-b1d1-3205df4eaea8>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-... |
A. The monomer
B. The dimer
1. The stationary points
2. A thermal sample of dimer configurations
C. The trimer
D. Thermal samples of the tetramer, pentamer and hexamer
E. Stable isomers of the hexamer | {"url":"http://scitation.aip.org/content/aip/journal/jcp/136/24/10.1063/1.4730035","timestamp":"2014-04-16T14:02:04Z","content_type":null,"content_length":"86316","record_id":"<urn:uuid:9c3a4b99-db65-45e7-a1cd-937e818320ec>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00186-ip-10-14... |
Formula to work out tax payable
February 21st 2013, 05:08 AM
Formula to work out tax payable
Hi, I'm trying to work on a formula that can calculate the tax payable given that we have different tax rates for different thresholds. So for example, let's say we have the following tax table.
Taxable Income Marg... | {"url":"http://mathhelpforum.com/business-math/213547-formula-work-out-tax-payable-print.html","timestamp":"2014-04-19T22:41:21Z","content_type":null,"content_length":"4913","record_id":"<urn:uuid:2b67c619-1012-4db0-b0c7-33c5ac9591e8>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-004... |
Ring-theoretic description of the norm-residue homomorphism
Recently, the norm-residue homomorphism has been the subject of intense discussions in the K-theoretic community following the proof of the Bloch-Kato conjecture by Voevodsky, Suslin and Rost (see
Rost’s lecture at this year’s Arbeitstagung.) The goal of this ... | {"url":"http://vivatsgasse7.wordpress.com/2007/07/12/ring-theoretic-description-of-the-norm-residue-homomorphism/","timestamp":"2014-04-16T19:40:06Z","content_type":null,"content_length":"105470","record_id":"<urn:uuid:248b5570-efba-4f5f-924c-1857fc791a6d>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-M... |
Untitled Document
SYLLABUS MA 121-651 SUMMER 2013
MA 121 Elements of Calculus
Instructor: Dr. Thomas Lada
Text: Calculus (9-th Ed.) by Bittinger, M. L.
You will view the lectures here:
The lectures may also be found at math videos
Check... | {"url":"http://www4.ncsu.edu/~lada/MA121-651summer%202013.html","timestamp":"2014-04-17T12:30:27Z","content_type":null,"content_length":"3128","record_id":"<urn:uuid:086e2692-3a25-4ed4-8454-085a96cab88b>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00303-ip-10-147-4-33.ec2.internal.w... |
Carbohydrate are compounds of carbon, hydrogen and oxygen in which the ratio of hydrogen atoms to oxygen atoms is... - Homework Help - eNotes.com
Carbohydrate are compounds of carbon, hydrogen and oxygen in which the ratio of hydrogen atoms to oxygen atoms is 2:1. A certain carbohydrate is known to be 40% carbon. Deter... | {"url":"http://www.enotes.com/homework-help/carbohydrate-compounds-carbon-hydrogen-oxygen-429448","timestamp":"2014-04-19T09:27:31Z","content_type":null,"content_length":"27139","record_id":"<urn:uuid:f2ce82a0-1410-45bf-b7a1-eab05ea13d4a>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217... |
Write homogeneous spherical space forms as coset spaces
up vote 0 down vote favorite
Let $S=G/K$ be a sphere written as coset space. I know there are just few possibilities for $G$, and $K$ due to the classification of compact connected groups that can be transitive on a sphere.
If $F \subset G$ is a finite fixed point... | {"url":"http://mathoverflow.net/questions/81959/write-homogeneous-spherical-space-forms-as-coset-spaces","timestamp":"2014-04-21T07:50:52Z","content_type":null,"content_length":"55143","record_id":"<urn:uuid:f999d782-675a-423c-b96e-9731c4be67cc>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-2014041... |
Tangent vector space question
I see in my notes (I don't carry The Encyclopedia Britannica around with me) that George Mostow, in his artical on analytic topology, says "The set of all tangent vectors at m of a k-dimensional
manifold constitutes a linear or vector space of which k is the dimension (k real)." Well ok, m... | {"url":"http://www.physicsforums.com/showthread.php?p=1085309","timestamp":"2014-04-21T04:49:12Z","content_type":null,"content_length":"40306","record_id":"<urn:uuid:bf605ac9-2ac8-41a8-8830-7d7d7be4ed7b>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00568-ip-10-147-4-33.ec2.internal.... |
Course calendar.
LEC TOPICS KEY DATES
1 Review of differential forms, Lie derivative, and de Rham cohomology.
2 Cup-product and Poincaré... | {"url":"http://ocw.mit.edu/courses/mathematics/18-966-geometry-of-manifolds-spring-2007/syllabus/","timestamp":"2014-04-21T00:14:43Z","content_type":null,"content_length":"35394","record_id":"<urn:uuid:08c7c8bf-bf0a-4075-806f-5b2a184e98c7>","cc-path":"CC-MAIN-2014-15/segments/1397609539337.22/warc/CC-MAIN-2014041600521... |
CM for primary ideal
MathOverflow is a question and answer site for professional mathematicians. It's 100% free, no registration required.
Let $R$ be a regular local ring, $I$ a prime ideal and $J$ an $I$-primary ideal in $R$. Is it true that if $R/I$ is CM then also $R/J$ is CM? This question... | {"url":"http://mathoverflow.net/questions/59398/cm-for-primary-ideal?sort=votes","timestamp":"2014-04-21T15:25:41Z","content_type":null,"content_length":"60262","record_id":"<urn:uuid:fee08791-f392-4f58-a2e0-6714a8d939f7>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00182-ip-10-147-... |
Mean - Concept
We have rational functions whenever we have a fraction that has a polynomial in the numerator and/or in the denominator. An excluded value in the function is any value of the variable that would make
the denominator equal to zero. To find the domain, list all the values of the variable that, when substit... | {"url":"https://www.brightstorm.com/math/algebra/introduction-to-statistics/mean/","timestamp":"2014-04-16T07:35:07Z","content_type":null,"content_length":"56873","record_id":"<urn:uuid:eafdec44-8c53-4e28-9916-a667c63ce5e2>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00415-ip-10-14... |
Linear and nonlinear field transformations and their application in the variational approach to nonperturbative quantum field theory
Abstract: The present work concerns nonperturbative variational studies of the effective potential beyond the Gaussian effective potential (GEP) approximation. In the Hamiltonian formalis... | {"url":"http://scholarship.rice.edu/handle/1911/16581","timestamp":"2014-04-16T10:42:04Z","content_type":null,"content_length":"10252","record_id":"<urn:uuid:ce39985e-66b5-4bcf-808a-851c12e21155>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00064-ip-10-147-4-33.ec2.internal.warc.gz"... |
4D Toto Magnum winning probability
Who here can enlighten me on the winning probability of 4D toto, magnum or 1+3D?
I understand if I buy 1 number only and Magnum only draws a single number. My probability is 1 out of 10,000.
But things get complicated when I buy 7 numbers and Magnum draws 23 numbers. So, how the calcu... | {"url":"https://forum.lowyat.net/topic/1340809/all","timestamp":"2014-04-16T04:13:12Z","content_type":null,"content_length":"547078","record_id":"<urn:uuid:e365446d-90a0-4e48-ae42-03175019806d>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00170-ip-10-147-4-33.ec2.internal.warc.gz"} |
Corona, NY Science Tutor
Find a Corona, NY Science Tutor
...My concentration is Regents Earth science, and I have experience preparing students for the Regents exam. Earth Science may seem like another language to you, but I have unique tools to help
you understand difficult and new concepts and to help you prep fo... | {"url":"http://www.purplemath.com/Corona_NY_Science_tutors.php","timestamp":"2014-04-19T06:57:30Z","content_type":null,"content_length":"23855","record_id":"<urn:uuid:d7344d62-cd86-450f-a7fd-498d497fe8db>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00275-ip-10-147-4-33.ec2.internal... |
Patent US4225850 - Non-fingerprint region indicator
The invention herein described was made in the course of or under a contract or subcontract with the U.S. Government.
1. Application Ser. No. 722,308 filed Sept. 10, 1976 for MINUTIAE PATTERN MATCHER by John P. Riganati et al, now U.S. Pat. No. 4,135,147.
2. Applicati... | {"url":"http://www.google.com/patents/US4225850?dq=5579430","timestamp":"2014-04-25T06:25:13Z","content_type":null,"content_length":"163667","record_id":"<urn:uuid:f6cb8695-cae5-4eb5-97c1-dec188d1e719>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00193-ip-10-147-4-33.ec2.internal.wa... |
Bezier curves and equally distributed parametric points (easy! ?)
November 15th 2008, 05:01 PM #1
Nov 2008
Bezier curves and equally distributed parametric points (easy! ?)
I am an amateur developing the math to describe the motion of a robot of sorts.
At this stage I'd like to use bezier curves as user inp... | {"url":"http://mathhelpforum.com/calculus/59741-bezier-curves-equally-distributed-parametric-points-easy.html","timestamp":"2014-04-18T05:08:27Z","content_type":null,"content_length":"30841","record_id":"<urn:uuid:47b8500b-5f41-4a88-be7f-c7e364e46169>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-2... |
Estimation of channel parameters and background irradiance for free-space optical link
Free-space optical communication can experience severe fading due to optical scintillation in long-range links. Channel estimation is also corrupted by background and electrical noise. Accurate
estimation of channel parameters and sc... | {"url":"http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-52-14-3260","timestamp":"2014-04-19T18:05:02Z","content_type":null,"content_length":"132685","record_id":"<urn:uuid:ae945d0c-7b6d-42c0-a07b-1156bcec0e7b>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00429-ip-10-147-4-33.ec... |
Basket Case Fractal - submission tenders open.
July 1, 2011
Basket Case Fractal – submission tenders open.
I’ve decided today that my next project will be to create a basket case fractal. I have a picture in my mind of a gift basket type thingy, but I can’t decide what to put into it.
I’ll be working with an iteration ... | {"url":"http://maekitso.wordpress.com/2011/07/01/basket-case-fractal-submission-tenders-open/","timestamp":"2014-04-18T05:29:28Z","content_type":null,"content_length":"68930","record_id":"<urn:uuid:ff6030e3-cc10-44e2-bd32-a7b62d11cd78>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00... |
Mac OS X Users/C programmers?
11-29-2003 #1
Registered User
Join Date
Nov 2003
Mac OS X Users/C programmers?
I'm buying a laptop and open to using any operating system. Macs being Unix based makes them very appealing to me and I'm trying to convince myself Mac is the way to go. I am used to reading
specs fo... | {"url":"http://cboard.cprogramming.com/c-programming/47759-mac-os-x-users-c-programmers.html","timestamp":"2014-04-18T04:25:42Z","content_type":null,"content_length":"106041","record_id":"<urn:uuid:b0841b28-2062-487a-8236-aca007aaae31>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00... |
Hempstead, NY Statistics Tutor
Find a Hempstead, NY Statistics Tutor
...From basic univariate statistics to complex multiple regressions, SAS can handle almost any mathematical analysis you ask it to. What's great is that it is much easier than other programming
languages, and is intuitive to learn. I have taken th... | {"url":"http://www.purplemath.com/Hempstead_NY_Statistics_tutors.php","timestamp":"2014-04-17T04:51:41Z","content_type":null,"content_length":"24310","record_id":"<urn:uuid:62bae6ef-8acd-4e73-bcc8-283a40ed5e0c>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00047-ip-10-147-4-33.ec2.int... |
Physics Problem!
centripetal character of the tension force [tex] -\omega^{2} l\vec{r} [/tex],with
[tex]\omega[/tex] is the angular speed, and it is not equal [tex]\sqrt{g/l}[/tex], indeed, it is not constant, At the highest point, [tex]\omega = 0 [/tex], on the other hand, [tex]\omega = maximun[/
tex] at the lowest po... | {"url":"http://www.physicsforums.com/showthread.php?t=59127&page=2","timestamp":"2014-04-18T13:58:00Z","content_type":null,"content_length":"66615","record_id":"<urn:uuid:cfd34013-22c2-407a-a835-99cd532d17e1>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00564-ip-10-147-4-33.ec2.inte... |
mathematics in india past
Some Information About
"mathematics in india past"
is hidd... | {"url":"http://seminarprojects.com/s/mathematics-in-india-past","timestamp":"2014-04-18T20:48:37Z","content_type":null,"content_length":"53134","record_id":"<urn:uuid:d5a91c60-4f69-46e8-aba2-1dd842e3fc97>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00187-ip-10-147-4-33.ec2.internal... |
MATH 151 - FALL 2007
Time: 10:10 - 11:00 Monday and Wednesday, labs Thursdays at various times
Place: Buehler 300. Recitation sections will meet in the rooms assigned. Labs will be held in Ayres 15.
Instructor: Dr. Louis Gross, Professor of Ecology and Evolutionary Biology and Mathematics
Office: 401B Austin Peay. Offi... | {"url":"http://www.tiem.utk.edu/~gross/math151fall07/syllabus.html","timestamp":"2014-04-19T20:10:08Z","content_type":null,"content_length":"7532","record_id":"<urn:uuid:7e7da3fe-ae5e-4986-9c22-7729434b7215>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00279-ip-10-147-4-33.ec2.inter... |
Bicycle over curb
1. The problem statement, all variables and given/known data
You are trying to raise a bicycle wheel of mass m and radius R up over a curb of height h. To do this, you apply a horizontal force F.
What is the least magnitude of the force F_vec that will succeed in raising the wheel onto the curb when t... | {"url":"http://www.physicsforums.com/showthread.php?t=160214","timestamp":"2014-04-20T21:23:36Z","content_type":null,"content_length":"50815","record_id":"<urn:uuid:3d391215-5f04-46cd-ac34-d58f9b7a3923>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00150-ip-10-147-4-33.ec2.internal.w... |
Are these groups isomorphic (Cancellation in torsionfree, virtually Abelian groups)
up vote 4 down vote favorite
I wondered whether it is possible to find two finitely generated, virtually Abelian, torsionfree groups $G,H$ that are not isomorphic but that become isomorphic after crossing with $\mathbb{Z}$. I
have the ... | {"url":"http://mathoverflow.net/questions/120315/are-these-groups-isomorphic-cancellation-in-torsionfree-virtually-abelian-gro","timestamp":"2014-04-17T19:17:24Z","content_type":null,"content_length":"52535","record_id":"<urn:uuid:ce1dc8db-16a3-4100-adb5-abffe5acebef>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.... |
Bissection Method Baseball Question
April 15th, 2010, 07:49 PM
Bissection Method Baseball Question
I've been asked to write a code which will calculate the angle at which a batter must strike so that the ball lands 200ft from home plate.
Apparently to solve it I have to use a bissection method in order to find ... | {"url":"http://www.javaprogrammingforums.com/%20algorithms-recursion/4093-bissection-method-baseball-question-printingthethread.html","timestamp":"2014-04-21T15:16:58Z","content_type":null,"content_length":"3732","record_id":"<urn:uuid:56f09b95-e57c-4306-8b82-1669f847bc1e>","cc-path":"CC-MAIN-2014-15/segments/139760954... |
Brick Math Tutor
Find a Brick Math Tutor
I have been teaching for 20 years. I am currently teaching both regular ed and special ed mathematics in a k-8 district in Monmouth county. I have a very hands on approach to learning as well as
relating my topics to real life situations.
13 Subjects: including algebra 1, ... | {"url":"http://www.purplemath.com/brick_math_tutors.php","timestamp":"2014-04-18T13:41:22Z","content_type":null,"content_length":"23474","record_id":"<urn:uuid:f1940964-80c8-42f3-8436-f0860479c174>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00560-ip-10-147-4-33.ec2.internal.warc.g... |
Are you afraid of equations?
Jellymatter is, we claim, not afraid of equations, but apparently scientists are. A study in PNAS claims to have found that theoretical biology papers are cited less when they are densely packed with
mathematical language. The authors argue that this impedes progress, since empirical work n... | {"url":"http://jellymatter.com/2012/06/27/are-you-afraid-of-equations/","timestamp":"2014-04-18T13:35:45Z","content_type":null,"content_length":"93256","record_id":"<urn:uuid:3ef65720-84d1-43c7-abfa-e813737b9e7e>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00154-ip-10-147-4-33.ec2.i... |
Inverse Matrix
February 26th 2009, 12:54 PM
Inverse Matrix
What would be the best way to find the inverse of this matrix?
[1 3 0 -1]
[-3 -5 -8 3]
[-4 -12 6 4]
[0 -1 2 1]
I have been told to use the I method using the matrix
By performing the row reductions on A to transform into I, along... | {"url":"http://mathhelpforum.com/advanced-algebra/75918-inverse-matrix-print.html","timestamp":"2014-04-17T08:39:04Z","content_type":null,"content_length":"5523","record_id":"<urn:uuid:b06c3af0-b391-4250-b32d-d23043151221>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00307-ip-10-147... |
Basic concepts
Let $X$ be a topological space and $\mathcal{U}$ an open cover thereof. A (continuous) path $\gamma \colon I \to X$ can pass through many of the elements of $\mathcal{U}$ as it winds its way around
$X$. We can decompose that path into segments such that each segment lies wholly inside one of the open se... | {"url":"http://ncatlab.org/nlab/show/schedule","timestamp":"2014-04-21T07:30:36Z","content_type":null,"content_length":"82141","record_id":"<urn:uuid:698fbcab-ef9e-4ce6-9974-50fde6c5722f>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00094-ip-10-147-4-33.ec2.internal.warc.gz"} |
definations related to mathematics:-
I did not invent these, just collected it
Mathematics is made of 50 percent formulas, 50 percent proofs, and 50 percent imagination.
"A mathematician is a device for turning coffee into theorems" (P. Erdos)
Addendum: American coffee is good for lemmas.
An engineer thinks that his eq... | {"url":"http://www.mathisfunforum.com/viewtopic.php?id=12817","timestamp":"2014-04-20T18:51:34Z","content_type":null,"content_length":"14777","record_id":"<urn:uuid:4b57ecb7-b588-46fb-b04b-d1cfe60f7606>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00222-ip-10-147-4-33.ec2.internal.w... |
Running Aggregate Functions
Running aggregate functions are similar to functional aggregates in that they take a set of records as input, but instead of outputting the single aggregate for the entire set of records, they output
the aggregate based on records encountered so far.
This section describes the running aggreg... | {"url":"http://docs.oracle.com/cd/E27437_01/books/OnDemOLH/runaggfuncanswhelp.html","timestamp":"2014-04-19T11:25:13Z","content_type":null,"content_length":"23548","record_id":"<urn:uuid:6765b0fc-7ef5-4b9b-aa5f-db581488897e>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00256-ip-10-1... |
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3x + 10 ≥ 4 Please solve and explain, Thanks.
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Clear Language, Clear Mind
Actually im busy doing an exam paper for linguistics class, but it turned out to be not so difficult, so i spent som time on Khan Academy doing probability and statistics courses. i want to master
that stuff, especially the stuff i dont currently know the details about, like regression.
anywa... | {"url":"http://emilkirkegaard.dk/en/?cat=1766","timestamp":"2014-04-23T22:07:13Z","content_type":null,"content_length":"52107","record_id":"<urn:uuid:036d8afb-a214-49ed-9c1c-730092273d84>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00223-ip-10-147-4-33.ec2.internal.warc.gz"} |
Learn about Decimal Equation by Addition and Subtraction
Learn about Decimal Equation by Addition and Subtraction In this track, let’s learn how to do addition and subtraction equations. We’re given two problems. The first problem asks us to solve the
equation and for us to check our answer. The equation is p - 3.2 = 7... | {"url":"http://www.healthline.com/hlvideo-5min/learn-about-decimal-equation-by-addition-and-subtraction-285015620","timestamp":"2014-04-18T00:23:19Z","content_type":null,"content_length":"38845","record_id":"<urn:uuid:5755a462-8700-4175-aaa3-bd86c4bf64ae>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MA... |
Manalapan, FL Math Tutor
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...I love to learn, and I like to think that in addition to lessons, I teach others to love learning, too! I received a minor in psychology at Western Washington University, for which I took the
following courses: Intro to Psychology, Psychology of Child Rear... | {"url":"http://www.purplemath.com/manalapan_fl_math_tutors.php","timestamp":"2014-04-19T02:22:44Z","content_type":null,"content_length":"24078","record_id":"<urn:uuid:44733897-e973-4e62-9b6a-7ea327318fd0>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00339-ip-10-147-4-33.ec2.internal.... |
Should I upgrade from an 83 to an 89 for next semester?
April 28th 2009, 12:37 PM #1
Should I upgrade from an 83 to an 89 for next semester?
Right now I have a Ti 83 that I have had since eighth grade. At this point (wrapping up my first semester of Calculus) I use it infrequently -- mostly to find decimal values a... | {"url":"http://mathhelpforum.com/calculators/86272-should-i-upgrade-83-89-next-semester.html","timestamp":"2014-04-18T04:00:09Z","content_type":null,"content_length":"71345","record_id":"<urn:uuid:46069a2b-7535-4b69-9caf-75e28fa7fbf7>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-000... |
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is replying to Can someone tell me what button the professor is hitting...
• Teamwork 19 T... | {"url":"http://openstudy.com/users/lolroark/answered","timestamp":"2014-04-20T11:19:57Z","content_type":null,"content_length":"53975","record_id":"<urn:uuid:ab814d96-f70d-420d-8a75-28c99867498d>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00243-ip-10-147-4-33.ec2.internal.warc.gz"} |
Proof Of Mathematical Induction
March 19th 2007, 09:30 AM #1
Junior Member
Aug 2006
Proof Of Mathematical Induction
The manner in which mathematical induction is introduced in my textbook has me wondering about its proof:
Theorem: The Principle of Mathematical Induction
Suppose that the following two co... | {"url":"http://mathhelpforum.com/discrete-math/12742-proof-mathematical-induction.html","timestamp":"2014-04-20T09:03:28Z","content_type":null,"content_length":"47303","record_id":"<urn:uuid:0686d611-9ebe-421a-bdac-e7b908f16ff8>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00451-ip-... |
The Irrationals: A Story of the Numbers You Can't Count On
The Irrationals: A Story of the Numbers You Can't Count On Follow
Author:Julian Havil
Publisher: Princeton University Press
ISBN: 978-069... | {"url":"http://i-programmer.info/bookreviews/65-mathematics/4798-the-irrationals-a-story-of-the-numbers-you-cant-count-on.html","timestamp":"2014-04-18T08:02:51Z","content_type":null,"content_length":"39689","record_id":"<urn:uuid:32128bff-8265-43ef-beab-7c30d0080190>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.... |
Earth Particles
Each particle, or corpuscle, of earth is a cube (six-sided geometrical solid). This is what earth particles look like, according to Plato s description in the Timaeus. In the center is the
earth-particle Plato describes at 55b-c, with 4 isosceles triangles making up each square face of the cube. On the ... | {"url":"http://faculty.washington.edu/smcohen/320/earth.htm","timestamp":"2014-04-18T18:54:24Z","content_type":null,"content_length":"1774","record_id":"<urn:uuid:31731a78-a82b-470e-aa95-c33d1b37b2ab>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00255-ip-10-147-4-33.ec2.internal.warc... |
Prove line in same plane as triangle that intersects interior, intersects a side
October 5th 2010, 06:55 PM #1
Prove line in same plane as triangle that intersects interior, intersects a side
Please let me know if the following proof is correct or not. If not a hint would be appreciated.
Given $\triangle ABC$ a... | {"url":"http://mathhelpforum.com/geometry/158546-prove-line-same-plane-triangle-intersects-interior-intersects-side.html","timestamp":"2014-04-17T20:12:20Z","content_type":null,"content_length":"40792","record_id":"<urn:uuid:071cd5d8-2dd5-4e53-ae95-f7dd46cd956f>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/war... |
calculation of material properties in transformation media
Hi everybody,
I'm focusing on meta-materials. I have recently read Schurig's paper "
Calculation of material properties and ray tracing in transformation media
" (OPTICS EXPRESS, Vol. 14 (21), 9794-9804, OCT 16 2006,
). In the article, the components of the per... | {"url":"http://www.physicsforums.com/showthread.php?p=2685117","timestamp":"2014-04-16T07:36:52Z","content_type":null,"content_length":"28397","record_id":"<urn:uuid:6c2b679e-3e54-47a4-a532-4c280cd5ef1c>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00638-ip-10-147-4-33.ec2.internal.... |
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Topic: Surprise at my failure to resolve an issue in an elementary paper by Rado
Replies: 44 Last Post: Nov 10... | {"url":"http://mathforum.org/kb/thread.jspa?threadID=2604565","timestamp":"2014-04-20T19:16:47Z","content_type":null,"content_length":"72445","record_id":"<urn:uuid:ea09380c-9cf5-41fe-af07-3a58f2cfbabb>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00284-ip-10-147-4-33.ec2.internal.w... |
A complete system of theoretical and mercantile arithmetic
A complete system of theoretical and mercantile arithmetic: Comprehending a full view of the various rules necessary in calculation. With a practical illustrations of the most material regulations
and transactions that occur in commerce. Particularly, interest,... | {"url":"http://books.google.ca/books?id=-sw2AAAAMAAJ&redir_esc=y","timestamp":"2014-04-24T14:44:09Z","content_type":null,"content_length":"139719","record_id":"<urn:uuid:70eb9226-aef3-4f60-8780-12c9f5280ac5>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00160-ip-10-147-4-33.ec2.intern... |
Unconstrained Optimization in Engineering Design
Main.UnconstrainedOptimization History
Hide minor edits - Show changes to output
Changed lines 7-26 from:
In this section we will examine some theory for the optimization of unconstrained functions. We will assume all functions are continuous and differentiable. Although... | {"url":"http://apmonitor.com/me575/index.php/Main/UnconstrainedOptimization?action=diff","timestamp":"2014-04-17T06:41:27Z","content_type":null,"content_length":"16949","record_id":"<urn:uuid:b65d85c9-12c1-45ff-8bac-07dca3069619>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00634-ip... |
Physics Forums - View Single Post - Retraction math help
The HNN-theorem says that every countable group can be embedded into a group with two generators. Could this be helpful?
In other words would the group
be a countable group with countably many retracts? (In light of the previous question this may be the right wa... | {"url":"http://www.physicsforums.com/showpost.php?p=1155561&postcount=29","timestamp":"2014-04-17T07:31:27Z","content_type":null,"content_length":"7065","record_id":"<urn:uuid:c1ef4937-cbb9-4495-a4cd-8be613fc2904>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00013-ip-10-147-4-33.ec2... |
What is the lifetime of a memoized value in a functional language like Haskell?
up vote 13 down vote favorite
In a pure functional language with lazy semantics (such as Haskell), results of computations are memoized so that further evaluations of a function with the same inputs do not recompute the value but
get it dir... | {"url":"http://stackoverflow.com/questions/5898162/what-is-the-lifetime-of-a-memoized-value-in-a-functional-language-like-haskell/5898410","timestamp":"2014-04-23T15:38:05Z","content_type":null,"content_length":"82115","record_id":"<urn:uuid:eb97c099-b250-4679-86e1-288df4839e59>","cc-path":"CC-MAIN-2014-15/segments/139... |
Definition of Denominator
● The number below the bar in a fraction is called the Denominator.
● We can also define denominator as the number of parts that a whole is divided into.
More about Denominator
• A fraction with zero (0) in the denominator is undefined.
Example of Denominator
• The given circle is divi... | {"url":"http://www.icoachmath.com/math_dictionary/Denominator.html","timestamp":"2014-04-19T19:53:36Z","content_type":null,"content_length":"8037","record_id":"<urn:uuid:a6b72f56-8645-41e9-aefe-ababc299b3b8>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00416-ip-10-147-4-33.ec2.inter... |
Proof Builders of the Great Pyramid had access to a modern computer , page 4
I typically agree with the idea that we, as modern humans, have become so ego-centric that we believe everything about us, and our civilization are the greatest, most advanced in all of history. I
really do believe that, in general, society do... | {"url":"http://www.abovetopsecret.com/forum/thread930216/pg4","timestamp":"2014-04-16T19:03:50Z","content_type":null,"content_length":"57189","record_id":"<urn:uuid:45f5be7d-8caf-413b-b418-de4e1180ea97>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00083-ip-10-147-4-33.ec2.internal.w... |
A shortcut to E=mc
A shortcut to E=mc^2
Have you ever considered how to actually derive the famous E=mc^2 formula? Does it require knowledge of Special Relativity or even worse: an understanding of the theory?
Well, no!
The only skill needed is some high-school physics and a bit of curiosity.
There is a box of mas... | {"url":"http://fotonowy.pl/index.php?main_page=page&id=6","timestamp":"2014-04-16T07:13:42Z","content_type":null,"content_length":"20169","record_id":"<urn:uuid:f5067662-3bfe-41c1-883d-a1ebf5646c9d>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00187-ip-10-147-4-33.ec2.internal.warc.... |
Does such a subgroup exist?
up vote 8 down vote favorite
I am looking for a certain masa in a $II_1$ factor which is singular and has nontrivial Takesaki invariant. For this I am looking for an example of an inclusion of groups $H\subset G$ such that:
• $G$ is a countable icc (infinite conjugacy class) group
• $H$ ... | {"url":"http://mathoverflow.net/questions/6635/does-such-a-subgroup-exist","timestamp":"2014-04-20T14:07:40Z","content_type":null,"content_length":"71250","record_id":"<urn:uuid:0d6757f2-be01-4369-853e-f8d492bc87cd>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00325-ip-10-147-4-33.e... |
Math Help
September 20th 2010, 08:41 PM #1
Apr 2010
If a point C lies between points A and B, can it be proven from Euclid's postulates that C lies on line AB?
This is not an area of mathematics that I'm particularly good at, but I'm pretty sure the answer is "no", unless you can define "lies between".
... | {"url":"http://mathhelpforum.com/geometry/156885-between.html","timestamp":"2014-04-17T11:17:15Z","content_type":null,"content_length":"30709","record_id":"<urn:uuid:a6602452-cc4e-48e7-8485-63b8409b4654>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00091-ip-10-147-4-33.ec2.internal.... |