content stringlengths 86 994k | meta stringlengths 288 619 |
|---|---|
Temperature and Entropy
I have been trying to understand temperature and entropy. I never had a good grasp of these concepts before. Finding a good explanation of them has been elusive.
I have gone back to basics to try and understand temperature and this is what I have got. Objects have this internal energy called hea... | {"url":"http://r6.ca/blog/20050505T170500Z.html","timestamp":"2014-04-17T15:48:46Z","content_type":null,"content_length":"10320","record_id":"<urn:uuid:c06666a9-c33f-498b-becd-21eb87492c27>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00300-ip-10-147-4-33.ec2.internal.warc.gz"} |
Tangent Vector to a Space Circle
January 14th 2011, 11:49 AM #1
Junior Member
Nov 2009
Pocatello, ID
Tangent Vector to a Space Circle
Find a vector tangent to the space circle:
At the point $(1/\sqrt{14}, 2/\sqrt{14}, -3/\sqrt{14})$
I should know how to do this, but it's been 4 years since I had mul... | {"url":"http://mathhelpforum.com/calculus/168363-tangent-vector-space-circle.html","timestamp":"2014-04-19T05:47:20Z","content_type":null,"content_length":"36881","record_id":"<urn:uuid:c3bd25c8-7eb3-4c36-882f-6912a2ab5a5f>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00424-ip-10-147... |
Modular Help
October 11th 2010, 02:16 PM #1
Junior Member
Sep 2010
Modular Help
My problem is:
Prove that there are no integers x and y such that x^2 − 5y^2 = 2.
Hint: consider this equation modulo 5.
I don't get how to start this with using modulo 5.
do I make the whole equation divisible by 5?... | {"url":"http://mathhelpforum.com/discrete-math/159215-modular-help.html","timestamp":"2014-04-17T05:30:14Z","content_type":null,"content_length":"31035","record_id":"<urn:uuid:90455808-6e22-42e1-bd0b-9779d10223dd>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00145-ip-10-147-4-33.ec2... |
The Meaning of Life - nursing an understanding for those who's job it is to ask the question of life, the universe and everything
Jay's Site.com > Stuff > The Meaning of Life
The answer to life, the universe and everything is 42.
I did not make this up:*
The second greatest computer of all time and space was built to t... | {"url":"http://www.jayssite.com/stuff/life/life.html","timestamp":"2014-04-18T08:27:44Z","content_type":null,"content_length":"9583","record_id":"<urn:uuid:9545a6c0-b75f-4e03-afdc-cd1a6bbf6986>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-20140423032004-00537-ip-10-147-4-33.ec2.internal.warc.gz"} |
Uncertainty for p = 0 for binomial distribution?
May 23rd 2011, 09:50 AM #1
Apr 2011
Uncertainty for p = 0 for binomial distribution?
I have some data (4 runs each of about 10 trials) which is binomial with n_hits/N_trials
n/N = 0/11, 0/9, 0/10, 0/10
So, I estimate the probability p = n/N = 0
But ho... | {"url":"http://mathhelpforum.com/advanced-statistics/181404-uncertainty-p-0-binomial-distribution.html","timestamp":"2014-04-21T09:37:54Z","content_type":null,"content_length":"82164","record_id":"<urn:uuid:f3230020-abb9-43e6-bfe3-b689a599e367>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416... |
"Perfect" Electron Roundness Bruises Supersymmetry
54526893 story
Posted by
from the look-at-how-round-it-is-man dept.
astroengine writes
"New measurements of the electron have confirmed, to the smallest precision attainable, that it has a perfect roundness. This may sounds nice for the little electron, but to one of... | {"url":"http://science.slashdot.org/story/13/12/19/2355222/perfect-electron-roundness-bruises-supersymmetry/insightful-comments","timestamp":"2014-04-17T07:03:54Z","content_type":null,"content_length":"100867","record_id":"<urn:uuid:3ebf5b2d-69b4-490d-abb0-2ac064198e9e>","cc-path":"CC-MAIN-2014-15/segments/139760952631... |
Model theory of algebraically closed valued fields
Seminar Room 1, Newton Institute
This tutorial of 5 lectures will be an exposition of a proof of elimination of imaginaries for the theory of algebraically closed valued fields (ACVF), when certain extra sorts from M^eq (coset
spaces) are added. The proof will be based... | {"url":"http://www.newton.ac.uk/programmes/MAA/seminars/2005033011301.html","timestamp":"2014-04-18T23:23:59Z","content_type":null,"content_length":"4921","record_id":"<urn:uuid:1f197ad2-2342-480e-9a8b-15ab6f2e4582>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00051-ip-10-147-4-33.e... |
What is a fast efficient way to find an item?
up vote 0 down vote favorite
Hi so I need some FAST way to search for a word in a dictionary.
The dictionary has like 500k words in it.
I am thinking about a using a hashmap where each bin has at most 1 word.
Ideas on how to do this or is there something better?
c++ hash
1 ... | {"url":"http://stackoverflow.com/questions/1959237/what-is-a-fast-efficient-way-to-find-an-item?answertab=oldest","timestamp":"2014-04-24T01:36:20Z","content_type":null,"content_length":"65519","record_id":"<urn:uuid:c73bcf99-7295-40cc-9251-61f33d50cb4b>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAI... |
Servicios Personalizados
Links relacionados
versión impresa ISSN 0187-6236
Atmósfera vol.25 no.3 México jul. 2012
Frictional convergence, atmospheric convection, and causality
... | {"url":"http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0187-62362012000300003&lng=es&nrm=iso&tlng=es","timestamp":"2014-04-20T20:57:46Z","content_type":null,"content_length":"70182","record_id":"<urn:uuid:54559b21-906d-4954-b8d0-e9fe6e723c13>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAI... |
Success rates for EPSRC Fellowships
I was recently at a presentation where the success rates for EPSRC fellowships were given by theme. The message of the talk was that Engineering fellowships were under-subscribed and so we should all
be preparing our applications. But just because a theme is under-subcribed doesn’t m... | {"url":"http://www.jameskeirstead.ca/blog/success-rates-for-epsrc-fellowships/","timestamp":"2014-04-20T08:54:18Z","content_type":null,"content_length":"25536","record_id":"<urn:uuid:905ff198-8c2c-476a-9ca5-e690951f04fe>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00589-ip-10-147-4-... |
Bronxville Algebra 2 Tutor
Find a Bronxville Algebra 2 Tutor
...I help to cultivate middle school and high school students' math aptitude. I can make myself available at any time 7 days a week. My tutoring experience so far has included Algebra (I, II),
Geometry, Trigonometry, Pre-Calc, Calculus (I, II), and Physic... | {"url":"http://www.purplemath.com/bronxville_ny_algebra_2_tutors.php","timestamp":"2014-04-20T21:07:33Z","content_type":null,"content_length":"23860","record_id":"<urn:uuid:c590257d-7262-4704-9685-963602b05796>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00113-ip-10-147-4-33.ec2.in... |
How Do I Use a Body Fat Caliper [Archive] - WannaBeBig Bodybuilding and Weightlifting Forums
View Full Version : How Do I Use a Body Fat Caliper
Hey I have one of those manual calipers and I have no idea how to use it. Can anyone help me?
Ok i see the measurements and where to measure but I dontunderstand the formula... | {"url":"http://www.wannabebig.com/forums/archive/index.php/t-32161.html","timestamp":"2014-04-20T10:54:26Z","content_type":null,"content_length":"11396","record_id":"<urn:uuid:56a5efd1-9467-478a-9d24-90b9c4bdc219>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00012-ip-10-147-4-33.ec2... |
Interactive opportunity
Plus Maths by Email
Plus is an internet magazine published five times a year which aims to introduce readers to the beauty Maths by Email is a free fortni... | {"url":"http://wwwstaff.murdoch.edu.au/~kissane/pd/reading.htm","timestamp":"2014-04-16T21:51:08Z","content_type":null,"content_length":"34876","record_id":"<urn:uuid:5f5a72b0-9e61-4fcd-b115-3470a4395bf4>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00052-ip-10-147-4-33.ec2.internal.... |
Time value of money
1. 294716
Calculate the future value of $2000 in
a) 5 years at interest rate of 5% per year
b) 10 years at an interest rate of 5% per year
c) 5 years at an interest rate of 10% per year
d) why is the amount of interest earned in part (a) less than half the amount of interest earned in (b)
You are t... | {"url":"https://brainmass.com/business/the-time-value-of-money/294716","timestamp":"2014-04-18T00:14:42Z","content_type":null,"content_length":"28238","record_id":"<urn:uuid:4a7e2c2d-aa36-441c-9eef-961c330741c6>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00041-ip-10-147-4-33.ec2.i... |
Posts by
Posts by eli
Total # Posts: 85
A jogger with a mass of 66.0 kg reaches the top of a staircase in 44.0 s. If the distance from the bottom to the top of the staircase is 14.0 m, how much power will the jogger create in climbing the
Spanish Help please
These look correct to me
Please help me ASAP!!!
Three unifor... | {"url":"http://www.jiskha.com/members/profile/posts.cgi?name=eli","timestamp":"2014-04-20T11:49:38Z","content_type":null,"content_length":"22841","record_id":"<urn:uuid:8f7c7520-0b27-4a89-ae2b-dcd354c4700f>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00093-ip-10-147-4-33.ec2.intern... |
Coconut Creek, FL Math Tutor
Find a Coconut Creek, FL Math Tutor
...If I had to take the exam again today, after six years of college and decades of worldly experience, I would undoubtedly score even higher. I know how to take tests. Allow me to assist you in
achieving your highest possible score on this very impor... | {"url":"http://www.purplemath.com/coconut_creek_fl_math_tutors.php","timestamp":"2014-04-19T19:56:11Z","content_type":null,"content_length":"24268","record_id":"<urn:uuid:0b5abc48-6425-41d1-98c4-616eba7a6c06>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00090-ip-10-147-4-33.ec2.inte... |
Got Homework?
Connect with other students for help. It's a free community.
• across
MIT Grad Student
Online now
• laura*
Helped 1,000 students
Online now
• Hero
College Math Guru
Online now
Here's the question you clicked on:
how do i simplify 4x^2-7x+3 divided by x^2+5x-6?
Your question... | {"url":"http://openstudy.com/updates/4f2cbc7ae4b0571e9cba3c74","timestamp":"2014-04-19T17:24:40Z","content_type":null,"content_length":"45541","record_id":"<urn:uuid:921668ab-5b60-4f63-8ded-3192c2493d1d>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00314-ip-10-147-4-33.ec2.internal.w... |
• A Triangle.
• A line defined by a point and a vector.
Asked to Write Code for following:
• How to test if line intersect inside triangle.
• none
Steps to Solve:
1. Basic Idea is to find out if line intersect the plain of the triangle. And then test if this intersection point is inside the triangle. Using Clock... | {"url":"http://www.angelfire.com/fl/houseofbartlett/solutions/line2tri.html","timestamp":"2014-04-17T04:26:32Z","content_type":null,"content_length":"19275","record_id":"<urn:uuid:344f3e1e-ec93-4794-ac28-d6b462aabe28>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00213-ip-10-147-4-33... |
How to get the desired frequency in simplified synchronous machine?
1 Answer
Edited by
John Doe
on 6 May 2013
Accepted answer
No products are associated with this question.
How to get the desired frequency in simplified synchronous machine?
when i simulate the model using simplified synchronous machine the output frequ... | {"url":"http://www.mathworks.com/matlabcentral/answers/74608","timestamp":"2014-04-19T00:22:51Z","content_type":null,"content_length":"33476","record_id":"<urn:uuid:adf19ac0-d130-471e-838f-16ab22eac8de>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00494-ip-10-147-4-33.ec2.internal.wa... |
Parenthesizing in audio
[Next] [Up] [Previous]
Next: Using pauses Up: Producing audio notation Previous: Producing audio notation
The technique used by written mathematical notation to cue tree structure is insufficient for audio renderings. Using a wide array of delimiters to write mathematics works, since the eye is ... | {"url":"http://www.cs.cornell.edu/Info/People/raman/phd-thesis/html/node73.html","timestamp":"2014-04-17T12:55:08Z","content_type":null,"content_length":"6616","record_id":"<urn:uuid:ae5f47e1-5432-4851-8889-970b6b5ffa35>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00662-ip-10-147-4-... |
Primes and Number Riddles
Date: 4/15/96 at 21:17:0
From: Anonymous
Subject: Pre Algebra: Finding primes as the result of solving number
I am having difficulty understanding this riddle. Please help me to
find the proper method to solve this and future riddles like it.
Thanks and here is the problem as it appears in it... | {"url":"http://mathforum.org/library/drmath/view/56743.html","timestamp":"2014-04-17T16:34:48Z","content_type":null,"content_length":"5874","record_id":"<urn:uuid:10ee6888-9152-47f2-a484-81e777e8e0b0>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00162-ip-10-147-4-33.ec2.internal.warc... |
Equation-Free Accelerated Simulations of the Morphological Relaxation of Crystal Surfaces
G. J. Wagner, X. Zhou, S. J. Plimpton, Int J for Multiscale Computational Engineering, 8, 423-439 (2010).
A method for accelerating kinetic Monte Carlo simulations of solid surface morphology evolution, based on the equation-free ... | {"url":"http://www.sandia.gov/~sjplimp/abstracts/ijmce10.html","timestamp":"2014-04-18T05:53:48Z","content_type":null,"content_length":"1941","record_id":"<urn:uuid:f4414738-0d3e-4f8f-b420-0d2909c5f14e>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00011-ip-10-147-4-33.ec2.internal.w... |
Expression Evaluation with Mixed Numbers
6.12: Expression Evaluation with Mixed Numbers
Created by: CK-12
Practice Expression Evaluation with Mixed Numbers
Have you ever had to combine pieces of something to make a whole?
Travis is doing exactly that. He has three pieces of pipe that has to be clamped together. It will... | {"url":"http://www.ck12.org/book/CK-12-Concept-Middle-School-Math---Grade-6/r4/section/6.12/","timestamp":"2014-04-18T04:01:28Z","content_type":null,"content_length":"137139","record_id":"<urn:uuid:a50c4e18-fb1d-45f7-893f-aa3a2076355a>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00... |
Kalman filtered compressed sensing
Results 1 - 10 of 40
- in Proc. IEEE Int. Symp. Inf. Theory (ISIT), 2009
"... Abstract—We study the problem of reconstructing a sparse signal from a limited number of its linear projections when a part of its support is known, although the known part may contain some
errors. The “know... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=9965697","timestamp":"2014-04-18T11:48:00Z","content_type":null,"content_length":"43089","record_id":"<urn:uuid:6aba373f-b1ec-4a3a-bd1c-643b7f1f1e2e>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00630-ip-10-147-4-33.ec2.internal.war... |
Tangent lines and derivatives Help!
October 19th 2008, 03:26 PM
Tangent lines and derivatives Help!
I can solve derivatives alright but I don't understand tangent lines at all.
Find the equation of the tangent line to the curve http://webwork.math.uwyo.edu/webwork...494d69bcd1.png at the point http://webwork.ma... | {"url":"http://mathhelpforum.com/calculus/54549-tangent-lines-derivatives-help-print.html","timestamp":"2014-04-17T06:07:25Z","content_type":null,"content_length":"6913","record_id":"<urn:uuid:aca5fa44-7ad3-4b39-a1e8-e7bbc2095ed5>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00487-i... |
Help! Exam in one hour! Find equation of plane?
Can you find the direction vector of both lines? What does the cross product of two vectors give us with respect to information about the plane?
Before I dive in can I clarify, the direction vector of line one is <-3, 2, 1> and line 2 is <-1, -2, 4> and by taking the cros... | {"url":"http://www.physicsforums.com/showthread.php?t=587571","timestamp":"2014-04-17T10:02:24Z","content_type":null,"content_length":"25535","record_id":"<urn:uuid:be7fb0e3-8879-4f1d-bb0c-fff1aa2d6ad0>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00239-ip-10-147-4-33.ec2.internal.wa... |
Math Forum Discussions
Math Forum
Ask Dr. Math
Internet Newsletter
Teacher Exchange
Search All of the Math Forum:
Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.
Topic: Serra's Discovering Geometry, Rhoad's Geometry for Enjoyment
Replies: 17 Last Post: Jul 10, 2013 10:45 ... | {"url":"http://mathforum.org/kb/message.jspa?messageID=1074732","timestamp":"2014-04-20T16:13:38Z","content_type":null,"content_length":"39936","record_id":"<urn:uuid:27b35853-de8e-4c05-93c7-5645a5d9887f>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00560-ip-10-147-4-33.ec2.internal... |
Possible Answer
Explains how to compute the mean, median, mode, and range of a list of numbers. - read more
How do you work out. the mean, mode, average and range. also how do you work out line equations? thanks.? - read more
Share your answer: how do you work out the mean mode median and range?
Question Analizer
how d... | {"url":"http://www.askives.com/how-do-you-work-out-the-mean-mode-median-and-range.html","timestamp":"2014-04-20T07:49:17Z","content_type":null,"content_length":"35774","record_id":"<urn:uuid:fa70e0b3-9a4a-4611-816e-f1bffa09d9fc>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00015-ip-... |
Summary: Under consideration for publication in J. Fluid Mech. 1
The large-scale flow structure in turbulent
rotating Rayleigh-B´enard convection
Stephan Weiss and Guenter Ahlers
Department of Physics, University of California, Santa Barbara, CA 93106, USA
(Received 1 June 2011)
We report on the influence of rotation a... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/348/2952495.html","timestamp":"2014-04-20T21:18:41Z","content_type":null,"content_length":"8443","record_id":"<urn:uuid:b55d450d-13fe-402e-8bb4-a02e5d6f2ed0>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00420-ip-10-147-... |
Math Forum Discussions
Math Forum
Ask Dr. Math
Internet Newsletter
Teacher Exchange
Search All of the Math Forum:
Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.
Topic: Newsletter: Math Forum Internet News 2.37 (Sept. 15)
Replies: 0
Newsletter: Math Forum Internet News 2... | {"url":"http://mathforum.org/kb/thread.jspa?threadID=485923","timestamp":"2014-04-24T17:35:11Z","content_type":null,"content_length":"19569","record_id":"<urn:uuid:a5fa0009-7f21-428a-bceb-c49c3b02dd07>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00041-ip-10-147-4-33.ec2.internal.wa... |
Vectors-finding distance
Find the distance of coordinate (1,0,0) from the line r=t(12i-3j-4k)
kingkaisai2 Although there is a formula, use the following(you can derive the formula using it) One thing I want to say is that the distance between a line and a point is the length of the
perpendicular drawn from the the poin... | {"url":"http://mathhelpforum.com/geometry/4142-vectors-finding-distance.html","timestamp":"2014-04-17T11:36:47Z","content_type":null,"content_length":"39011","record_id":"<urn:uuid:7197b1ef-36f1-44ba-b50a-81cf766f1199>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00257-ip-10-147-4-3... |
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=1909&page=94","timestamp":"2014-04-20T14:02:04Z","content_type":null,"content_length":"48631","record_id":"<urn:uuid:41387f61-83be-4866-afda-0fc9b35da060>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00392-ip-10-147-4-33.ec2.internal... |
Quadradic Progressions.
June 12th 2006, 06:31 PM #1
Global Moderator
Nov 2005
New York City
Quadradic Progressions.
Consider the following sets.
$S_1=\{a_1n^2+b_1n+c_2|n\in \mathbb{Z}\}$
$S_2=\{a_2n^2+b_2n+c_2|n\in \mathbb{Z}\}$
$S_k=\{a_kn^2+b_kn+c_k|n\in \mathbb{Z}\}$
Where, $a_1,a_2,...,a... | {"url":"http://mathhelpforum.com/number-theory/3399-quadradic-progressions.html","timestamp":"2014-04-16T10:20:01Z","content_type":null,"content_length":"34473","record_id":"<urn:uuid:0c4c68ad-8313-4bea-9516-6cc35ad0815c>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00154-ip-10-147-... |
gigabits per second
gigabits per second
<unit> (Gbps) A unit of information transfer rate equal to one billion bits per second. Note that, while a gigabit is defined as a power of two (2^30 bits), a gigabit per second is defined as a power
of ten (10^9 bits per second, which is slightly less) than 2^30).
Last updated... | {"url":"http://foldoc.org/gigabits","timestamp":"2014-04-18T23:21:29Z","content_type":null,"content_length":"4825","record_id":"<urn:uuid:509f3c87-b5d4-496e-b345-02d5d16eb751>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00493-ip-10-147-4-33.ec2.internal.warc.gz"} |
automorphism, in mathematics, a correspondence that associates to every element in a set a unique element of the set (perhaps itself) and for which there is a companion correspondence, known as its
inverse, such that one followed by the other produces the identity correspondence (i); i.e., the correspondence that assoc... | {"url":"http://www.britannica.com/print/topic/45044","timestamp":"2014-04-23T09:51:14Z","content_type":null,"content_length":"7060","record_id":"<urn:uuid:a50c6e2f-8d7e-4fc7-8ef0-edd63cf76781>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00122-ip-10-147-4-33.ec2.internal.warc.gz"} |
Robion Cromwell Kirby
Born: 25 February 1938 in Chicago, Illinois, USA
... | {"url":"http://www-history.mcs.st-and.ac.uk/Biographies/Kirby.html","timestamp":"2014-04-18T18:24:44Z","content_type":null,"content_length":"24560","record_id":"<urn:uuid:33977afe-889d-42e4-bbe9-4cfda971006d>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00090-ip-10-147-4-33.ec2.inter... |
Got Homework?
Connect with other students for help. It's a free community.
• across
MIT Grad Student
Online now
• laura*
Helped 1,000 students
Online now
• Hero
College Math Guru
Online now
Here's the question you clicked on:
Total number of integral points lying inside the triangle form... | {"url":"http://openstudy.com/updates/503baa0ae4b007f9003100e3","timestamp":"2014-04-19T02:04:52Z","content_type":null,"content_length":"47970","record_id":"<urn:uuid:dcb45594-97b5-4855-af6f-0fe3ce303e1b>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00025-ip-10-147-4-33.ec2.internal.... |
motion of a particle
February 15th 2007, 08:41 AM #1
Nov 2006
Suppose that the equations of motion of a particle moving along an elliptic path are x= a cos omega t , y=sin omega t.
a) show that the acceleration is directed toward the origin.
b) show that the magnitude of the acceleration is proportional... | {"url":"http://mathhelpforum.com/calculus/11623-motion-particle.html","timestamp":"2014-04-18T18:42:58Z","content_type":null,"content_length":"34309","record_id":"<urn:uuid:9013af4a-9011-4aaa-aa70-b969cf1dc03f>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00170-ip-10-147-4-33.ec2.int... |
Re: RIF: st: mfx with xtlogit
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
Re: RIF: st: mfx with xtlogit
From Johannes Geyer <JGeyer@diw.de>
To statalist@hsphsun2.harvard.edu
Subject Re: RIF: st: mfx with xtlogit
Date Tue, 26 Feb 2008 12:20:00 +0100
>the mfx default does not cor... | {"url":"http://www.stata.com/statalist/archive/2008-02/msg01079.html","timestamp":"2014-04-18T19:14:28Z","content_type":null,"content_length":"11028","record_id":"<urn:uuid:86bbe530-8f15-45c8-9f97-aba6b33a0d09>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00275-ip-10-147-4-33.ec2.int... |
Major program: The Mathematics major requires a year of differential and integral calculus, Vectors and Matrices or Linear Algebra, Multivariable Calculus, an elementary knowledge of mathematical
algorithms and computer programming, Abstract Algebra, Fundamentals of Analysis, and a coherent selection of at least four a... | {"url":"https://www.wesleyan.edu/admission/academic_sampler/departments/math.html?KeepThis=true&TB_iframe=true&height=500&width=800","timestamp":"2014-04-21T02:47:12Z","content_type":null,"content_length":"3854","record_id":"<urn:uuid:eacf11fc-c535-4181-839d-f5fd41ca4ec0>","cc-path":"CC-MAIN-2014-15/segments/1398223205... |
Classifying According to Existing Categories
Components of Decision Analytics
1. Classifying According to Existing Categories
This chapter provides an overview of the techniques used to classify data according to existing categories and clusters.
Regardless of what line of work we’re in, we make decisions about peopl... | {"url":"http://www.informit.com/articles/article.aspx?p=2153182","timestamp":"2014-04-18T15:51:39Z","content_type":null,"content_length":"49461","record_id":"<urn:uuid:8d16aaf0-b90b-40dc-8395-a58480691002>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00238-ip-10-147-4-33.ec2.internal... |
[SciPy-User] Help in python
Amr Radwan amr_or@yahoo....
Mon Nov 29 04:26:28 CST 2010
Hello Sir,
It would be grateful if you can help me in a simple python code. I am
learning python nowadays. I have two systems of ordinary differential
equations, one of them the state functions x(u,t) and the other for the... | {"url":"http://mail.scipy.org/pipermail/scipy-user/2010-November/027696.html","timestamp":"2014-04-18T11:23:56Z","content_type":null,"content_length":"4249","record_id":"<urn:uuid:7c1b7468-d8c8-46ae-adbf-9d91813a9f85>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00214-ip-10-147-4-33... |
Optimal production?
October 1st 2010, 05:15 PM #1
Junior Member
Jan 2010
Optimal production?
I need to find the optimal level of inputs, the minimum total cost, and the average cost given the following conditions:
Min 25K + 5L
s.t. $100=L^{.75}K^{.25}$
The second equation looks like a standard Cobb-... | {"url":"http://mathhelpforum.com/business-math/158133-optimal-production.html","timestamp":"2014-04-21T05:41:38Z","content_type":null,"content_length":"34616","record_id":"<urn:uuid:0b0a6949-d996-4026-b149-87c6a14dc4f3>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00428-ip-10-147-4-... |
Characterizing the Radon transforms of log-concave functions
up vote 5 down vote favorite
f:R^d→R[≥0] is log-concave if log(f) is concave (and the domain of log(f) is convex).
Theorem: For all σ on the sphere S^d-1 and r∈R, g[σ](r) := ∫[σ.x=r]f(x)dS(x) is a log-concave function of r. (Note: g, as a function of σ and r,... | {"url":"http://mathoverflow.net/questions/452/characterizing-the-radon-transforms-of-log-concave-functions?sort=oldest","timestamp":"2014-04-20T05:52:14Z","content_type":null,"content_length":"56273","record_id":"<urn:uuid:2533f41a-9d24-4291-8ec4-f9bf256f005b>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/... |
Algebra Problems
Algebra Problems on the Compass Test
Here are practice problems and solutions for the areas that are covered on the algebra section of the Compass mathematics test.
Basic Algebraic Calculations with Polynomials
Remember that a polynomial is a mathematical equation that contains more than one variable,... | {"url":"http://www.compass-test-practice.com/algebra.htm","timestamp":"2014-04-20T18:22:30Z","content_type":null,"content_length":"14000","record_id":"<urn:uuid:bd1e0502-54f6-4409-9003-db51d01a637f>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00386-ip-10-147-4-33.ec2.internal.warc.... |
Varying Motion
This lesson helps students clarify the relationship between the shape of a graph and the movement of an object. Students explore their own movement and plot it onto a displacement vs. time graph.
From this original graph, students create a velocity vs. time graph, and from there create an acceleration v... | {"url":"http://illuminations.nctm.org/Lesson.aspx?id=2955","timestamp":"2014-04-17T09:46:18Z","content_type":null,"content_length":"98643","record_id":"<urn:uuid:bd203d19-ed48-484e-a80f-d1aa41c5c5fd>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00250-ip-10-147-4-33.ec2.internal.warc... |
Universal upper bound on the entropy-to-energy ratio for bounded systems
We present evidence for the existence of a universal upper bound of magnitude $\frac{2\pi R}{\hslash c}$ to the entropy-to-energy ratio $\frac{S}{E}$ of an arbitrary system of effective radius $R$.
For systems with negligible self-gravity, the bou... | {"url":"http://journals.aps.org/prd/abstract/10.1103/PhysRevD.23.287","timestamp":"2014-04-18T20:59:01Z","content_type":null,"content_length":"27047","record_id":"<urn:uuid:12eef4c1-2186-463a-b68a-05171570d5e4>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00008-ip-10-147-4-33.ec2.int... |
WDM Network Blocking Computation Toolbox - File Exchange - MATLAB Central
File Information
The aim of this toolbox is to compute blocking probabilities in WDM networks. This work was based on [1], [2], [3], [4] and us... | {"url":"http://www.mathworks.com/matlabcentral/fileexchange/4797-wdm-network-blocking-computation-toolbox","timestamp":"2014-04-18T08:37:46Z","content_type":null,"content_length":"43005","record_id":"<urn:uuid:c1fada45-3f40-44cb-9c6c-3e4a985009a4>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140... |
How arbitrary are connections?
Suppose that I have a differentiable manifold M on which I don't define a metric. I wish to define an affine connection on that manifold that will allow me to parallel transport vectors from one
tangent space of that manifold to another tangent space.
How arbitrary can I make my choice?
I... | {"url":"http://www.physicsforums.com/showthread.php?t=546843","timestamp":"2014-04-20T03:11:32Z","content_type":null,"content_length":"31085","record_id":"<urn:uuid:0c047ee6-1e0a-4e29-a6f8-309efa1f6966>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00212-ip-10-147-4-33.ec2.internal.w... |
Lesson 2 - How to measure a tree
The two measurements most commonly used to estimate the volume of wood in a tree or log are diameter and log length. Stem quality is also evaluated using a grading system that considers how large and
straight a stem is and whether or not there are defects such as branches.
Measuring Tre... | {"url":"http://www.ahc.caf.wvu.edu/joomla/index.php?option=com_content&view=article&id=240:measure-a-tree&catid=23:some-basic-lessons&Itemid=94","timestamp":"2014-04-21T02:04:06Z","content_type":null,"content_length":"40660","record_id":"<urn:uuid:c2122726-0bca-48ba-be23-03cbea36cc7a>","cc-path":"CC-MAIN-2014-15/segmen... |
Mathematical psychology
34,117pages on
this wiki
Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |
Statistics: Scientific meth... | {"url":"http://psychology.wikia.com/wiki/Mathematical_psychology?direction=prev&oldid=139188","timestamp":"2014-04-23T14:45:55Z","content_type":null,"content_length":"125736","record_id":"<urn:uuid:2d0f93b5-0f6e-4151-82b3-e0d8248d3c18>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-001... |
Course Hero has millions of student submitted documents similar to the one below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.
Find millions of documents on Course Hero - Study Guides, Lecture Notes, Reference Materials, Practice Exams and more. Course ... | {"url":"http://www.coursehero.com/file/7374452/HW2-Soln-Composite-Materials/","timestamp":"2014-04-18T13:11:33Z","content_type":null,"content_length":"49248","record_id":"<urn:uuid:e22bebf5-e93d-40e9-a61e-67b4e4b4042e>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00059-ip-10-147-4-3... |
Time Difference in SQL Server 2008
To obtain a formatted value in hh:mm for time difference between two time values.
PS: the two time field are datatype time and the db is SQLSERVER2008
asked Oct 15 '09 at 08:12 AM in Default
1 ● 1 ● 1 ● 1
select convert(time, dateadd(minute, datediff(minute, tm1, tm2), 0))
an... | {"url":"http://ask.sqlservercentral.com/questions/23352/time-difference-in-sql-server-2008.html","timestamp":"2014-04-18T00:16:19Z","content_type":null,"content_length":"58946","record_id":"<urn:uuid:5164b901-2438-45bb-a81d-fa03812e1c5b>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-... |
FOM: fom: topos theory
Steve Awodey awodey at cmu.edu
Fri Jan 16 10:54:49 EST 1998
Colin McLarty has been doing such a good job of defending topos theory
against Steve Simpson's criticism that there seemed no need to jump in
(except perhaps to counter the impression that Colin is alone in his
opinions). But the recent... | {"url":"http://www.cs.nyu.edu/pipermail/fom/1998-January/000800.html","timestamp":"2014-04-19T01:51:26Z","content_type":null,"content_length":"11530","record_id":"<urn:uuid:fb87d39d-6644-4404-96ab-5deb38c057ea>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00216-ip-10-147-4-33.ec2.int... |
Call Of Code
I just saw this post about unsigned loop problems on Eli Blendersky's blog:
In it he tells a tale of woe with unsigned values not being easy to test when doing negative for loops, but one trick that I've used numerous times for checking ranges applies here too. I've marked
the changes.
Positive loop:
for (... | {"url":"http://coc.dev77.com/","timestamp":"2014-04-19T10:02:13Z","content_type":null,"content_length":"103192","record_id":"<urn:uuid:ad05f46d-e466-4e2b-bc00-94e40595f3f5>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00031-ip-10-147-4-33.ec2.internal.warc.gz"} |
Math Help
I have a problem i dont have the solution manual too and i am stumped on how to complete.
This could be a trigonometric substitution?
$\int_1^2 \frac {dx}{x \sqrt {4 + x^2}}$
this is what i came up with but i dont think its right..
$x = 2 tan \theta$
$dx = 2 sec^2 \theta$
$\sqrt {... | {"url":"http://mathhelpforum.com/calculus/192341-integral.html","timestamp":"2014-04-17T22:35:44Z","content_type":null,"content_length":"40892","record_id":"<urn:uuid:27ad30f6-c33a-4891-a680-bcac79aa376a>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00230-ip-10-147-4-33.ec2.internal... |
Woodstock, GA Algebra 2 Tutor
Find a Woodstock, GA Algebra 2 Tutor
...Let's connect these pieces together. "Putting one foot in front of the other", is a simple motion but crucial if one is to move forward from one point to another under their own power.
Algebra, is this step that carries one from a basic math conc... | {"url":"http://www.purplemath.com/Woodstock_GA_Algebra_2_tutors.php","timestamp":"2014-04-19T10:01:51Z","content_type":null,"content_length":"24227","record_id":"<urn:uuid:8c731366-53c8-4e30-af33-af7b0b160543>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00250-ip-10-147-4-33.ec2.inte... |
Can Anybody help me out, in converting my code to iterative method.
03-14-2011 #1
Registered User
Join Date
Mar 2011
Can Anybody help me out, in converting my code to iterative method.
I am new on programming, is currently using dev c++. I was asked to write a method to find x^y, where y is a power of x. Using ... | {"url":"http://cboard.cprogramming.com/cplusplus-programming/135748-can-anybody-help-me-out-converting-my-code-iterative-method.html","timestamp":"2014-04-17T20:11:23Z","content_type":null,"content_length":"61942","record_id":"<urn:uuid:0ed42b17-bb57-4c47-9164-a141fd77235a>","cc-path":"CC-MAIN-2014-15/segments/13976095... |
Cryptology ePrint Archive: Report 2011/120
Faster 2-regular information-set decodingDaniel J. Bernstein and Tanja Lange and Christiane Peters and Peter SchwabeAbstract: Fix positive integers B and w. Let C be a linear code over F_2 of length
Bw. The 2-regular-decoding problem is to find a nonzero codeword consist... | {"url":"http://eprint.iacr.org/2011/120","timestamp":"2014-04-19T22:16:16Z","content_type":null,"content_length":"2692","record_id":"<urn:uuid:1bdaaf6e-6faf-435a-a4dc-24b13ffb5fbf>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00171-ip-10-147-4-33.ec2.internal.warc.gz"} |
Peter Cramton
The methodology of economics employs mathematical and logical tools to model and analyze markets, national economies, and other situations where people make choices. Understanding of many economic
issues can be enhanced by careful application of the methodology, and this in turn requires an understanding ... | {"url":"http://www.cramton.umd.edu/courses/","timestamp":"2014-04-20T00:44:30Z","content_type":null,"content_length":"59886","record_id":"<urn:uuid:65d0e7c6-307a-4a33-a402-ea06005c1808>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00456-ip-10-147-4-33.ec2.internal.warc.gz"} |
Going Whole Ballhog
If you're one of the tens of readers who follow me, then unless the bottom of your rock doesn't carry ESPN, you've probably heard something about this kid from Grinnell who
dropped 138
on a hapless Faith Baptist Bible College basketball team. Now, granted, this was a Division III basketball game
—ha... | {"url":"http://thenullhypodermic.blogspot.com/2012/11/going-whole-ballhog.html","timestamp":"2014-04-20T21:07:48Z","content_type":null,"content_length":"68603","record_id":"<urn:uuid:6225464d-95e0-48c7-b1bb-17aa09718967>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00447-ip-10-147-4... |
Capitol Heights Geometry Tutor
...I also give my students homework and provide timely feedback to them on their strengths and weaknesses. I also ask for feedback from my students on my standard of tutoring and how to make the
tutoring process and experience much better. For the convenience of the students, I am ver... | {"url":"http://www.purplemath.com/Capitol_Heights_Geometry_tutors.php","timestamp":"2014-04-19T23:28:55Z","content_type":null,"content_length":"24495","record_id":"<urn:uuid:78c00902-e09e-4fad-aa0d-6a5ce143e894>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00292-ip-10-147-4-33.ec2.i... |
Palisade, NJ
New York, NY 10028
STAT/MATH/Actuarial Science/CFA/MBA/Fin. - Ivy League Exp & Prof
Holding First Class Honours Degrees in
ematical Sciences and Psychology from Newcastle University, and an MSc. in Applied Statistics from Cambridge University, England, I became a full-time Private
ematics Coach over ten ye... | {"url":"http://www.wyzant.com/Palisade_NJ_Math_tutors.aspx","timestamp":"2014-04-17T00:50:15Z","content_type":null,"content_length":"60115","record_id":"<urn:uuid:47099b16-e6f5-4aaf-b52c-0aae65304c11>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00458-ip-10-147-4-33.ec2.internal.warc... |
West Springfield, VA Geometry Tutor
Find a West Springfield, VA Geometry Tutor
...I completed a B.S. degree in Applied Mathematics from GWU, graduating summa cum laude, and also received the Ruggles Prize, an award given annually since 1866 for excellence in mathematics. I
minored in economics and went on to study ... | {"url":"http://www.purplemath.com/West_Springfield_VA_Geometry_tutors.php","timestamp":"2014-04-21T15:07:34Z","content_type":null,"content_length":"24455","record_id":"<urn:uuid:842b3517-fa98-43a7-87ba-c415e880cb17>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00474-ip-10-147-4-33.e... |
Lamirada, CA Precalculus Tutor
Find a Lamirada, CA Precalculus Tutor
...In my own competitions, I have registered personal bests of 1:49.4 in the 800m and 4:00.38 in the Mile. In the name of good fun, I have won two trail marathons, while setting course records in
each: Buzz Marathon (San Miguel, CA -- 2010); Run t... | {"url":"http://www.purplemath.com/lamirada_ca_precalculus_tutors.php","timestamp":"2014-04-19T07:29:34Z","content_type":null,"content_length":"24279","record_id":"<urn:uuid:58975b37-2aff-4df9-9863-ae07ec799360>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00352-ip-10-147-4-33.ec2.in... |
One of the shortcomings of regression (both linear and logistic) is that it doesn’t handle categorical variables with a very large number of possible values (for example, postal codes). You can get
around this, of course, by going to another modeling technique, such as Naive Bayes; however, you lose some of the advanta... | {"url":"http://www.r-bloggers.com/tag/logistic-regression/","timestamp":"2014-04-16T13:41:01Z","content_type":null,"content_length":"39758","record_id":"<urn:uuid:70465e08-ade0-4b43-84f1-02cf8058e875>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00518-ip-10-147-4-33.ec2.internal.war... |
Post a reply
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
You are not logged in.
• Index
• » Help Me !
• » Li(x)
Post a reply
... | {"url":"http://www.mathisfunforum.com/post.php?tid=18297&qid=236724","timestamp":"2014-04-25T00:14:11Z","content_type":null,"content_length":"20145","record_id":"<urn:uuid:1313d3a4-1b1f-471b-bba9-0c7c08c48f54>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00053-ip-10-147-4-33.ec2.int... |
• Login
• Register
• Forget
Challenger of the Day
Azhar Shahid (azharshahid01@gmail.com)
New Delhi
Time: 00:01:16
Placed User Comments (More)
rajesh dolai
2 Days ago
plz send me ibm plaement paper english..
2 Days ago
cleared ibm 2 rounds
thank you m4maths.com
2 Days ago
Thanks to m4maths.I got placed in IBM.Awsome... | {"url":"http://www.m4maths.com/placement-puzzles.php?SOURCE=igate","timestamp":"2014-04-20T15:52:33Z","content_type":null,"content_length":"120568","record_id":"<urn:uuid:b51eb0b0-4e3e-40f8-913f-3434b1b54f04>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00426-ip-10-147-4-33.ec2.inte... |
PyX —
PyX — Example: graphstyles/density.py
Drawing a density plot
from pyx import *
# Mandelbrot calculation contributed by Stephen Phillips
# Mandelbrot parameters
re_min = -2
re_max = 0.5
im_min = -1.25
im_max = 1.25
gridx = 100
gridy = 100
max_iter = 10
# Set-up
re_step = (re_max - re_min) / gridx
im_step = (im_ma... | {"url":"http://pyx.sourceforge.net/examples/graphstyles/density.html","timestamp":"2014-04-20T13:21:02Z","content_type":null,"content_length":"13861","record_id":"<urn:uuid:697ff1ee-16b3-41d0-8720-12ec4239762a>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00418-ip-10-147-4-33.ec2.in... |
Mathematics and Statistics News
First Endowed Professor Position in Department
2010 Putnam Competition
New Visiting Professor
Third Grant Received to Improve Math Teachers in Grades 7-12
2010 Elections to Phi Beta Kappa and Sigma Xi
Summer 2010 Undergraduate Research Programs
MathFest 2010
Winner of 2010 Mina S. Rees S... | {"url":"http://math.hunter.cuny.edu/news.shtml","timestamp":"2014-04-17T04:27:36Z","content_type":null,"content_length":"37926","record_id":"<urn:uuid:0b51a8e2-43b4-497a-95b7-e7ba000a4b86>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00332-ip-10-147-4-33.ec2.internal.warc.gz"} |
Integrating out of the real domain of a function
OK, but what did you do to transform the integral into that form?
First, you need to assume a specific path, P (though for the ln() function it won't matter as long as we don't go around the origin to get there). Assume it's along the negative real axis. So at all
points... | {"url":"http://www.physicsforums.com/showthread.php?p=4175216","timestamp":"2014-04-19T17:43:24Z","content_type":null,"content_length":"52175","record_id":"<urn:uuid:d2e139d8-2476-4097-ba7a-0f0b3649e10b>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00228-ip-10-147-4-33.ec2.internal.... |
A Methodology for Generation of Performance Models for the Sizing of Analog High-Level Topologies
VLSI Design
Volume 2011 (2011), Article ID 475952, 17 pages
Research Article
A Methodology for Generation of Performance Models for the Sizing of Analog High-Level Topologies
^1Institute of Radio Physics and Electronics, U... | {"url":"http://www.hindawi.com/journals/vlsi/2011/475952/","timestamp":"2014-04-17T05:52:59Z","content_type":null,"content_length":"292709","record_id":"<urn:uuid:ead2e079-2688-495d-b0a4-8ddc13f1f196>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00402-ip-10-147-4-33.ec2.internal.war... |
Matches for: Author/Editor=(Gaglione_Anthony)
Contemporary Mathematics
1990; 191 pp; softcover
Volume: 109
ISBN-10: 0-8218-5116-0
ISBN-13: 978-0-8218-5116-6
List Price: US$46
Member Price: US$36.80
Order Code: CONM/109
The AMS Special Session on Combinatorial Group Theory--Infinite Groups, held at the University of M... | {"url":"http://www.ams.org/bookstore?arg9=Anthony_Gaglione&fn=100&l=20&pg1=CN&r=1&s1=Gaglione_Anthony","timestamp":"2014-04-19T01:53:27Z","content_type":null,"content_length":"16495","record_id":"<urn:uuid:14fc8414-f0fb-4a99-9a6a-8ea6ec2b8276>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-2014041600... |
converting function to include vectors
08-09-2011 #1
Registered User
Join Date
Apr 2008
converting function to include vectors
I have the following function that is being called from an algorithm.
double rosen(double x[])
return (100*(x[1]-x[0]*x[0])*(x[1]-x[0]*x[0])+(1.0-x[0])*(1.0-x[0]));
... | {"url":"http://cboard.cprogramming.com/c-programming/140167-converting-function-include-vectors.html","timestamp":"2014-04-21T11:17:02Z","content_type":null,"content_length":"117436","record_id":"<urn:uuid:9ae09e75-50d4-4ecb-b4d9-05d0ef7f9c47>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-201404160... |
The Identification problem in SPECT: uniqueness, non-uniqueness and stability
Seminar Room 1, Newton Institute
We study the problem of recovery both the attenuation $a$ and the source $f$ in the attenuated X-ray transform in the plane. We study the linearization as well. It turns out that there is a natural
Hamiltonian... | {"url":"http://www.newton.ac.uk/programmes/INV/seminars/2011080411151.html","timestamp":"2014-04-18T15:44:22Z","content_type":null,"content_length":"6240","record_id":"<urn:uuid:378f7fd3-7d85-414a-9dee-21e13cd8de7f>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00421-ip-10-147-4-33.e... |
Next: Integers Up: Numbers Previous: Natural, or Counting Numbers Contents
It is easy to see that there is no largest natural number. Suppose there was one, call it . Now add one to it, forming . We know that , contradicting our assertion that was the largest. This lack of
a largest object, lack of a boundary, lack of ... | {"url":"http://phy.duke.edu/~rgb/Class/math_for_intro_physics/math_for_intro_physics/node7.html","timestamp":"2014-04-18T18:45:29Z","content_type":null,"content_length":"9302","record_id":"<urn:uuid:7af5f696-a1e4-49f0-a59c-3497c86dd36a>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-0... |
the first resource for mathematics
Global convergence of a non-monotone trust-region filter algorithm for nonlinear programming.
(English) Zbl 1130.90399
Hager, William W. (ed.) et al., Multiscale optimization methods and applications. Selected papers based on the presentation at the conference, Gainesville, FL, USA, F... | {"url":"http://zbmath.org/?q=an:1130.90399","timestamp":"2014-04-18T00:26:19Z","content_type":null,"content_length":"20571","record_id":"<urn:uuid:45a22c72-dbab-4299-8cf2-e07f801a1356>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00645-ip-10-147-4-33.ec2.internal.warc.gz"} |
MATH T102 ALL Mathematics for Elementary School Teachers II
Mathematics | Mathematics for Elementary School Teachers II
T102 | ALL | tba
T102 Mathematics for Elementary School Teachers II (3 credits)
P: An appropriate score on the mathematics department’s Mathematical
Skills Assessment Test, X018, or consent of the dep... | {"url":"http://www.indiana.edu/~deanfac/blspr05/math/math_t102_ALL.html","timestamp":"2014-04-18T05:33:46Z","content_type":null,"content_length":"910","record_id":"<urn:uuid:fb1e5098-870c-48b5-9977-5484079bda93>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00211-ip-10-147-4-33.ec2.i... |
relation, in logic, a set of ordered pairs, triples, quadruples, and so on. A set of ordered pairs is called a two-place (or dyadic) relation; a set of ordered triples is a three-place (or triadic)
relation; and so on. In general, a relation is any set of ordered n-tuples of objects. Important properties of relations i... | {"url":"http://www.britannica.com/print/topic/496799","timestamp":"2014-04-18T04:36:09Z","content_type":null,"content_length":"7225","record_id":"<urn:uuid:178c485d-a074-4a18-be80-549dcfb546f4>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00587-ip-10-147-4-33.ec2.internal.warc.gz"} |
Modest Age
A teacher, attempting to avoid revealing his real age, made the following statement:
"I'm only about twenty-three years old if you don't count weekends."
Can you work out how old the teacher really is?
If weekends are not counted, the given age only represents ^5/[7] of his actual age.
Using this informa... | {"url":"http://mathschallenge.net/full/modest_age","timestamp":"2014-04-19T17:02:34Z","content_type":null,"content_length":"6269","record_id":"<urn:uuid:e4604758-20d7-42bf-82f7-57c987c59985>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00333-ip-10-147-4-33.ec2.internal.warc.gz"} |
Non-Uniform Random Variate Generation
Results 1 - 10 of 532
, 1993
"... Probabilistic inference is an attractive approach to uncertain reasoning and empirical learning in artificial intelligence. Computational difculties arise, however, because probabilistic models
with the necessary realism and flexibility lead to com... | {"url":"http://citeseerx.ist.psu.edu/showciting?doi=10.1.1.85.8760","timestamp":"2014-04-18T19:20:25Z","content_type":null,"content_length":"40540","record_id":"<urn:uuid:66dbd175-620a-4367-891c-92cdee29e519>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00328-ip-10-147-4-33.ec2.inter... |
x and y intercepts
May 19th 2008, 09:47 AM #1
May 2008
x and y intercepts
Can someone help me find x intercept for
f(x) = 1 - 3(-x-2)2
(the last 2 means square, not sure how to do upper case here)
I have been stuck with this one for couple of hours.
Thanks everyone. This is my first post I am gl... | {"url":"http://mathhelpforum.com/algebra/38866-x-y-intercepts.html","timestamp":"2014-04-19T12:58:37Z","content_type":null,"content_length":"35700","record_id":"<urn:uuid:50e06b09-9ab4-467b-ad5e-c8b2312dac8b>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00241-ip-10-147-4-33.ec2.inte... |
Alviso Prealgebra Tutor
Find an Alviso Prealgebra Tutor
...I have taught pre-algebra to college students for many quarters and understand well how to help them to overcome their difficulties in this subject. I have aced my SAT Math test as well as SAT
Math subject test. I believe the way to improve on the SAT Math ... | {"url":"http://www.purplemath.com/Alviso_Prealgebra_tutors.php","timestamp":"2014-04-17T07:30:40Z","content_type":null,"content_length":"23887","record_id":"<urn:uuid:0ef19a37-19c1-4fc1-9bf5-8b3cf6a2a556>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00068-ip-10-147-4-33.ec2.internal.... |
Got Homework?
Connect with other students for help. It's a free community.
• across
MIT Grad Student
Online now
• laura*
Helped 1,000 students
Online now
• Hero
College Math Guru
Online now
Here's the question you clicked on:
Professor Bartlett teaches a class of 11 students. She has a v... | {"url":"http://openstudy.com/updates/4fda76a0e4b0f2662fd0f78c","timestamp":"2014-04-20T16:26:32Z","content_type":null,"content_length":"65938","record_id":"<urn:uuid:a8010e28-84d3-4de4-8a40-f11733352108>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00613-ip-10-147-4-33.ec2.internal.... |
Westside, GA Prealgebra Tutor
Find a Westside, GA Prealgebra Tutor
...I have a bachelor's in Biology and Biochemistry from the Georgia Institute of Technology and a master's in Infectious Diseases from the University of Georgia. I am a scientist by trade but I
consider myself more of a renaissance man in the world ... | {"url":"http://www.purplemath.com/Westside_GA_Prealgebra_tutors.php","timestamp":"2014-04-20T19:13:57Z","content_type":null,"content_length":"24237","record_id":"<urn:uuid:f2496afd-0614-4312-8f4f-60ea04ba6ff0>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00077-ip-10-147-4-33.ec2.int... |
the encyclopedic entry of mandelbrot set
, the
Mandelbrot set
, named after
Benoît Mandelbrot
, is a set of
in the
complex plane
, the
of which forms a
. Mathematically, the Mandelbrot set can be defined as the set of complex
-values for which the
of 0 under
of the
complex quadratic polynomial x[n+1]
. That is, a compl... | {"url":"http://www.reference.com/browse/mandelbrot+set","timestamp":"2014-04-17T11:11:05Z","content_type":null,"content_length":"128118","record_id":"<urn:uuid:c5d06ee4-3111-4b5c-9b89-9c785778f0bc>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00009-ip-10-147-4-33.ec2.internal.warc.g... |
Voltage Dividers
Resistors, Capacitors, RC combinations
A general method for measuring high voltages is to use a voltage divider composed of two impedances in series. The ratio of impedance is such that the voltage across one of the elements is some
convenient fraction (like 1/1000) of the voltage across the combinatio... | {"url":"http://home.earthlink.net/~jimlux/hv/vdiv.htm","timestamp":"2014-04-16T05:10:42Z","content_type":null,"content_length":"5168","record_id":"<urn:uuid:2db08985-8364-40b9-ad94-a85f168819d2>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00125-ip-10-147-4-33.ec2.internal.warc.gz"} |
[Numpy-discussion] Permuting sparse arrays
Edward C. Jones edcjones@comcast....
Wed Jan 25 09:12:23 CST 2012
I have a vector of bits where there are many more zeros than one. I
store the array as a sorted list of the indexes where the bit is one.
If the bit array is (0, 1, 0, 0, 0, 1, 1), it is stored as (1, 5, 6).
If... | {"url":"http://mail.scipy.org/pipermail/numpy-discussion/2012-January/059991.html","timestamp":"2014-04-17T12:53:38Z","content_type":null,"content_length":"3002","record_id":"<urn:uuid:96313287-2d5c-4be0-a540-7e23874b1a6f>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00193-ip-10-147... |
Computer science
From HaskellWiki
Wikipedia's Computer science.
Martín Escardó maintains a Computer science page, being both detailed and comprehensive.
Structure and Interpretation of Computer Programs (by Harold Abelson and Gerald Jay Sussman with Julie Sussman, foreword by Alan J. Perlis).
Computability theory
Wikip... | {"url":"http://www.haskell.org/haskellwiki/index.php?title=Computer_science&oldid=3756","timestamp":"2014-04-19T00:02:53Z","content_type":null,"content_length":"14834","record_id":"<urn:uuid:6d01d402-0845-4fef-9338-bc218c3e032e>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00334-ip-1... |
time reversal invariance
If the physical laws of a system are time reversal invariant that means essentially that if you were watching a video tape of the system then you would not be able to tell whether it was being played
forward or backward. We can represent that concept more mathematically by saying that if a part... | {"url":"http://everything2.com/title/time+reversal+invariance","timestamp":"2014-04-18T08:08:05Z","content_type":null,"content_length":"29695","record_id":"<urn:uuid:25b80016-8d88-47f6-87e4-c7f7239ca69e>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00634-ip-10-147-4-33.ec2.internal.... |
From Bitcoin
A hash algorithm turns an arbitrarily-large amount of data into a fixed-length hash. The same hash will always result from the same data, but modifying the data by even one bit will completely change
the hash. Like all computer data, hashes are large numbers, and are usually written as hexadecimal.
BitCoin... | {"url":"https://en.bitcoin.it/wiki/Hash","timestamp":"2014-04-18T02:58:05Z","content_type":null,"content_length":"15070","record_id":"<urn:uuid:646d68ec-7f70-46b4-be00-7609fdc4b36c>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00230-ip-10-147-4-33.ec2.internal.warc.gz"} |
Re: st: MIXLOGIT: marginal effects
Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down at the end of May, and its replacement, statalist.org is already up and
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: MIXLOGIT... | {"url":"http://www.stata.com/statalist/archive/2012-02/msg00314.html","timestamp":"2014-04-17T06:53:16Z","content_type":null,"content_length":"11055","record_id":"<urn:uuid:5eecb863-0fc0-403c-b645-344e08b40389>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00269-ip-10-147-4-33.ec2.in... |
Resolving the universal sheaf on the Quot scheme
up vote 4 down vote favorite
Let $X$ be a smooth projective variety, and $Quot$ some quot scheme, i.e. it parametrizes quotients of some fixed sheaf $F$ on $X$ of some fixed Hilbert polynomial. There is a universal quotient
sheaf $\mathcal{Q}$ on $X \times Quot$ such tha... | {"url":"http://mathoverflow.net/questions/116540/resolving-the-universal-sheaf-on-the-quot-scheme","timestamp":"2014-04-21T05:19:42Z","content_type":null,"content_length":"44913","record_id":"<urn:uuid:e4d5de4d-711b-4535-a346-6b59a5c95bff>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-2014041600521... |
Math for Craft Design
by Linda
Have you ever wanted to create an attractively spaced stripe, or tried to calculate how long an item should be once you've gotten the width figured out? If so, you've come to the right place.
There are three mathematical concepts I've found extremely helpful when designing a new pattern. ... | {"url":"http://www.planetshoup.com/easy/tips/math.shtml","timestamp":"2014-04-17T02:02:17Z","content_type":null,"content_length":"10971","record_id":"<urn:uuid:437cb019-4781-4785-bd48-9fb9e1db859e>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00305-ip-10-147-4-33.ec2.internal.warc.gz... |
Images of the Possible - Geometer Sketch Pad
I am not a math person, and so I was not excited about using the Geometer Sketch Pad program. My partners and I laughed about our skills and tackled what we thought would be the easiest assignment
LittleOnes. We were successful and progressed to the fourth grade levels. Some... | {"url":"http://blog.lib.umn.edu/hime0001/pimlott/2006/11/images_of_the_possible_geomete.html","timestamp":"2014-04-19T01:49:42Z","content_type":null,"content_length":"5542","record_id":"<urn:uuid:2c64e4e2-428b-4ea3-ac88-35e150e944ef>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00282... |
"Smart" Calculating
I'm trying to do some work with some simple trigonometric functions. (Law of Sines and Cosines knowledge is useful here) I have a triangle:
\ /
(I apologize for the crudity of this triangle!)
To label, the top side is c, and the other two sides are a and b. The top-left angle is A, the top-right ang... | {"url":"http://www.cplusplus.com/forum/general/85110/","timestamp":"2014-04-18T18:21:37Z","content_type":null,"content_length":"12164","record_id":"<urn:uuid:696471f7-05c6-4a42-b3d6-a0fe9ac62527>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00078-ip-10-147-4-33.ec2.internal.warc.gz"} |
Metaharmonic Lattice Point Theory
Historical Aspects
Preparatory Ideas and Concepts
Tasks and Perspectives
Basic Notation
Cartesian Nomenclature
Regular Regions
Spherical Nomenclature
Radial and Angular Functions
One-Dimensional Auxiliary Material
Gamma Function and Its Properties
Riemann–Lebesgue Limits
Fourier Bounda... | {"url":"http://www.psypress.com/books/details/9781439861844/","timestamp":"2014-04-19T14:03:23Z","content_type":null,"content_length":"36180","record_id":"<urn:uuid:aaa83bca-9aba-41b7-923c-389a37cc276b>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00248-ip-10-147-4-33.ec2.internal.w... |
Boulder, CO ACT Tutor
Find a Boulder, CO ACT Tutor
...After graduation I was hired on at John Evans Middle School in Greeley, CO where I taught physical science. After a year there I moved to Boulder and I now am a life science teacher at
Thornton Middle School. I believe that I can get any child or person to learn... | {"url":"http://www.purplemath.com/boulder_co_act_tutors.php","timestamp":"2014-04-20T19:25:29Z","content_type":null,"content_length":"23854","record_id":"<urn:uuid:5b77ca44-1b91-4858-9a99-df1def31f83f>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00389-ip-10-147-4-33.ec2.internal.wa... |
So what exactly is a complex number?
Steve Holden steve at holdenweb.com
Tue Sep 4 07:10:22 CEST 2007
Roy Smith wrote:
> Boris Borcic <bborcic at gmail.com> wrote:
>> Complex numbers are like a subclass of real numbers
> I wouldn't use the term "subclass". It certainly doesn't apply in the same
> sense it applies in... | {"url":"https://mail.python.org/pipermail/python-list/2007-September/460856.html","timestamp":"2014-04-20T01:37:13Z","content_type":null,"content_length":"5206","record_id":"<urn:uuid:13ed6d27-8b03-4844-b38c-945987546971>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00458-ip-10-147-4... |
Existence of limits!
February 2nd 2010, 11:30 AM #1
Jan 2010
Existence of limits!
How would you go about showing that the limit as x approaches 0 of (x + sgn(x)) does not exist? (sgn(x) = x/|x| )
If x< 0, then x+ sgn(x)= x- 1. If x> 0, then x+ sgn(x)= x+1. For x very close to 0 and negative, x+ sgn(x) is ve... | {"url":"http://mathhelpforum.com/differential-geometry/126824-existence-limits.html","timestamp":"2014-04-17T15:06:21Z","content_type":null,"content_length":"38570","record_id":"<urn:uuid:4a05740c-8a49-4389-8f50-d105df122f85>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00022-ip-10-1... |