content stringlengths 86 994k | meta stringlengths 288 619 |
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N-body problem in Python
I was wondering if anyone could by any chance give me some help. I used Euler's method and the program runs, however, it doesn't give the correct solution. I honestly have no idea whats happening in
the program, the problem has to be in the way I implemented Euler's Method. But I can't seem to ... | {"url":"http://www.physicsforums.com/showthread.php?p=4187053","timestamp":"2014-04-18T23:29:22Z","content_type":null,"content_length":"59734","record_id":"<urn:uuid:73f9b663-7236-445b-b9f7-ba4124f34a58>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00138-ip-10-147-4-33.ec2.internal.... |
[FOM] The Lucas-Penrose Thesis
laureano luna laureanoluna at yahoo.es
Thu Sep 28 13:58:41 EDT 2006
I would focus on the simple argument in 'Shadows of
the Mind' propounding that no knowably sound Turing
machine M can mirror human mathematical ability,
because for any such M we would know something that M
could not know... | {"url":"http://www.cs.nyu.edu/pipermail/fom/2006-September/010813.html","timestamp":"2014-04-19T22:17:48Z","content_type":null,"content_length":"4770","record_id":"<urn:uuid:1ca59b6e-7e63-4357-86be-09fa09436631>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00073-ip-10-147-4-33.ec2.i... |
Chris Beaumont's IDL Library
The anneal class performs simulated annealing to maximize a fitness function. This is a little different than normal, where annealing minimizes a penalty (or energy) function.
Simulated annealing maximizes a function by taking random steps in parameter space from the current input. At each ... | {"url":"http://www.ifa.hawaii.edu/~beaumont/code/anneal__define.html","timestamp":"2014-04-16T13:28:42Z","content_type":null,"content_length":"20263","record_id":"<urn:uuid:85bc1ba7-07d0-4119-a70d-717e0dff2395>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00361-ip-10-147-4-33.ec2.int... |
From ErfWiki
Okay, so here's my theory on how a "Battlespace" is defined: How far can the units in that hex reach? If the Move reach of non-allied units overlap, then they are considered to be in a "Battlespace"
together, because one might be able to engage the other in battle. If units share a Battlespace, then the Tu... | {"url":"http://www.erfworld.com/wiki/index.php/Talk:Battlespace","timestamp":"2014-04-18T23:57:25Z","content_type":null,"content_length":"14214","record_id":"<urn:uuid:3ea7ad9b-54cb-4ea1-aeee-65e2b567936a>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00207-ip-10-147-4-33.ec2.internal... |
Finding Aids at The University of Minnesota
Location Title
New Boy in School 1963
Note New York: Hastings House, 1963
Box M. C. Pencil acetate illustration with text proof and 2 separations for jacket (1 p.) Box M. C. 958
Pencil acetate illustrations ... | {"url":"http://discover.lib.umn.edu/cgi/f/findaid/findaid-idx?c=umfa;cc=umfa;rgn=main;view=text;didno=CLRC-1341","timestamp":"2014-04-18T02:59:45Z","content_type":null,"content_length":"9796","record_id":"<urn:uuid:d205f97b-7e03-4d32-bc1c-11086fac2354>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-... |
Graphing the Derivative
Graphing the Derivative of a Function
In order to be successful with this applet, you will need to have a solid understanding of the geometric interpretations of the derivative. Recall that the derivative graph will... | {"url":"http://www.ltcconline.net/greenl/java/Other/DerivativeGraph/classes/DerivativeGraph.html","timestamp":"2014-04-20T23:27:40Z","content_type":null,"content_length":"2544","record_id":"<urn:uuid:61c70543-be73-4245-b92c-d450a3739638>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-0... |
If I hadn't killed 52 flies as a child, how many descendants would they have had by now?
A Straight Dope Classic from Cecil's Storehouse of Human Knowledge
If I hadn't killed 52 flies as a child, how many descendants would they have had by now?
August 29, 1980
Dear Cecil:
As an only child, I was forced to be ingenious ... | {"url":"http://www.straightdope.com/columns/read/21/if-i-hadnt-killed-52-flies-as-a-child-how-many-descendants-would-they-have-had-by-now","timestamp":"2014-04-16T16:01:10Z","content_type":null,"content_length":"22216","record_id":"<urn:uuid:1524a38a-6f5e-4bc5-87dc-07d380206bab>","cc-path":"CC-MAIN-2014-15/segments/139... |
HIgher Homotopy Groups and Representation Theory
up vote 8 down vote favorite
Let $G$ be a compact Lie group, and $g$ its associated Lie algebra.
In what ways do the higher homotopy groups $\pi_{n}(G)$ with $n>1$ appear in the representation theory of $G$?
As an example, note that there is at least one place where the ... | {"url":"http://mathoverflow.net/questions/127779/higher-homotopy-groups-and-representation-theory/127785","timestamp":"2014-04-18T10:44:29Z","content_type":null,"content_length":"63491","record_id":"<urn:uuid:67b8af9c-55ad-409f-8ac9-485db4eedc0a>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-201404... |
How to make a Simple Dipole Antenna
It is very easy to create a simple 1/2 wave dipole, all you need is some lengths of wire such as the core of some mains flex or even a straightened out metal coat hanger, some co-ax cable and a
connector for your scanners antenna input (usually BNC or SMA).
147/frequency in MHz, this... | {"url":"http://nathan.chantrell.net/old-stuff/radio/radio-scanning/how-to-make-a-simple-dipole-antenna/","timestamp":"2014-04-20T05:45:37Z","content_type":null,"content_length":"109487","record_id":"<urn:uuid:fe3ae9bf-183e-45ba-a18e-1164dbc8645a>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-201404... |
Euler and Hamilton Knight Adventure
> Euler and Hamilton Knight Adventure
Euler and Hamilton Knight Adventure
I once again have been motivated to explore a classic problem from the a post on Endeavour blog of John D Cook.
The Knight’s tour has a number of generalizations and solutions.
I tried to implement the Warnsd... | {"url":"http://ubpdqnmathematica.wordpress.com/2011/04/09/euler-and-hamilton-knight-adventure/","timestamp":"2014-04-21T07:27:36Z","content_type":null,"content_length":"57037","record_id":"<urn:uuid:a34ed93b-3509-45f1-9d11-99e8b81a6082>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-0... |
"Euler system" in Christodoulou's The Action Principle and PDEs
up vote 5 down vote favorite
In The Action Principle and PDEs Christodoulou spends some time describing what he calls the Euler system associated to a system of variational PDEs (sections 2.5-7, 6.2). Briefly, given a bundle $E\
to M$ with fiber $N$, whose... | {"url":"http://mathoverflow.net/questions/81597/euler-system-in-christodoulous-the-action-principle-and-pdes","timestamp":"2014-04-21T02:05:01Z","content_type":null,"content_length":"54957","record_id":"<urn:uuid:7da5ceff-aeb9-4872-ab09-29e81010a0a3>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20... |
GMAT Test Prep in Singapore by Manhattan Review
GMAT Test Preparation in Singapore
The Manhattan Review Advantage
Manhattan Review doesn't just teach the GMAT, it teaches the underlying knowledge for mastering it. While some test prep companies focus on learning tricks for solving multiple choice problems,
Manhattan Re... | {"url":"http://www.gmat.sg/gmat/","timestamp":"2014-04-18T23:14:37Z","content_type":null,"content_length":"24563","record_id":"<urn:uuid:51d31e07-9e37-4663-929a-05f50bc5b5b7>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00256-ip-10-147-4-33.ec2.internal.warc.gz"} |
Milton Friedman's F-twist
copies an article by a Brad DeLong. Although it is very clear that DeLong understands the basic structure of Friedman's deep monetarist ideas, he describes Friedman in a hostile way, without having
any evidence against his ideas.
Friedman has understood that the money supply was the only major... | {"url":"http://www.motls.blogspot.com/2009/02/milton-friedmans-f-twist.html?m=1","timestamp":"2014-04-18T23:16:07Z","content_type":null,"content_length":"95226","record_id":"<urn:uuid:464ea6d1-9d26-462e-a2b7-e1e2608191d1>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-20140423032004-00165-ip-10-147-... |
Bladensburg, MD Calculus Tutor
Find a Bladensburg, MD Calculus Tutor
...As a Professor, I have hundreds of hours of experience working with students one on one as well as countless hours of tutoring my own very successful children when they were young. Recently, I
have had great success helping students significant... | {"url":"http://www.purplemath.com/bladensburg_md_calculus_tutors.php","timestamp":"2014-04-20T10:53:15Z","content_type":null,"content_length":"24120","record_id":"<urn:uuid:f6ef6cdf-84f3-4e46-ae46-f3cf235b0a52>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00230-ip-10-147-4-33.ec2.in... |
Signal Hill Statistics Tutor
Find a Signal Hill Statistics Tutor
...My name is David, and I hope to be the tutor you are looking for. I have over 5 years of tutoring experience in all math subjects, including Algebra, Geometry, Trigonometry, Pre-Calculus,
Calculus, Probability and Statistics. I have also helped stu... | {"url":"http://www.purplemath.com/Signal_Hill_statistics_tutors.php","timestamp":"2014-04-20T20:01:57Z","content_type":null,"content_length":"24350","record_id":"<urn:uuid:599a05cc-f399-49bc-8ae8-1f6824e49680>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00076-ip-10-147-4-33.ec2.inte... |
Converting Cubic Inches to Cubic Centimeters - Worked Unit Conversion Example Problem
This example problem demonstrates how to convert cubic inches to cubic centimeters.
Many small car engines have an engine dispacement of 151 cubic inches. What is this volume in cubic centimeters?
1 inch = 2.54 centimeters
First, conv... | {"url":"http://chemistry.about.com/od/volumeconversions/a/Converting-Cubic-Inches-To-Cubic-Centimeters.htm","timestamp":"2014-04-21T12:08:28Z","content_type":null,"content_length":"42079","record_id":"<urn:uuid:3e9b1be6-ecfb-4f2e-a567-45a6dc04b612>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140... |
Math Fun
A+ Math
Visit the Game Room, test your math knowledge with Flash Cards, and get help from the Homework Helper.
Math Advantage
Divided by grade level (k-8). Build dinosaurs and join Dr. Gee in the 3-D lab. This site is filled with Shockwave games that will make math exciting and fun.
Dr. Math
Need help finding ... | {"url":"http://roxanalibrary.org/kids-teens/kid-s-corner/math-fun.html","timestamp":"2014-04-18T15:38:25Z","content_type":null,"content_length":"27166","record_id":"<urn:uuid:22c8204a-73cc-4c9e-b8b5-dca939baed0b>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00100-ip-10-147-4-33.ec2.... |
Design of an Attitude and Heading Reference System Based on Distributed Filtering for Small UAV
Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 498739, 8 pages
Research Article
Design of an Attitude and Heading Reference System Based on Distributed Filtering for Small UAV
^1Science and Technology on... | {"url":"http://www.hindawi.com/journals/mpe/2013/498739/","timestamp":"2014-04-19T07:37:50Z","content_type":null,"content_length":"304058","record_id":"<urn:uuid:30c9b908-5ad3-49ce-b4df-d2aa99487ce0>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00438-ip-10-147-4-33.ec2.internal.warc... |
Tucson Trigonometry Tutor
Find a Tucson Trigonometry Tutor
...My strengths as a tutor are that I am very patient and I am able to come up with many different ways of explaining things until they make sense to you. There is no better feeling then helping
someone achieve their academic goals. I hope to hear from you ... | {"url":"http://www.purplemath.com/tucson_az_trigonometry_tutors.php","timestamp":"2014-04-20T13:44:04Z","content_type":null,"content_length":"23856","record_id":"<urn:uuid:65d1df83-612c-4861-95f2-ddd9c888f2a9>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00328-ip-10-147-4-33.ec2.int... |
Prof. Junseok Kim
Tel : 3290-3077
Lecture Times
10:30 TT, 532
Office Hours
Anytime with appointment
Text book
Elementary Differential Equations and Boundary Value Problems,
9th Edition, by W.E. Boyce and R.C. DiPrima, John Wiley & Sons, 2009,
ISBN 978-0-470-03940-3
Description of course
This course is a study of differ... | {"url":"http://ocw.korea.edu/ocw/college-of-science/bbf8bd84bc29c815c2ddb860/syllabus","timestamp":"2014-04-20T18:23:32Z","content_type":null,"content_length":"26838","record_id":"<urn:uuid:74155e27-b3ae-484d-988a-677cf985f290>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00502-ip-10... |
Population Model
September 20th 2007, 04:45 AM #1
May 2006
Population Model
We have a population model given by the differential equation:
dP/dt = (k*cos(t))*P, where k is a pos. constant, and P(T) undergoes yearly seasonal changes.
Assume that P(0) = P_(0).
1.) Solve the Dif. Equation and graph the... | {"url":"http://mathhelpforum.com/pre-calculus/19245-population-model.html","timestamp":"2014-04-20T08:43:48Z","content_type":null,"content_length":"34432","record_id":"<urn:uuid:414bd6b0-41ea-410d-a11f-59b28eacc632>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00048-ip-10-147-4-33.ec... |
What might be done about high prices of journals?
Following the suggestions from Richard Taylor and from Teresa Krick, we would like to gather your statements pertaining to pricing for mathematical journals.
Quoting Richard, “Maybe instead the IMU could consider what if anything it can do about the unreasonable prices ... | {"url":"http://blog.wias-berlin.de/imu-journals/2011/12/07/what-might-be-done-about-high-prices-of-journals/","timestamp":"2014-04-19T17:01:49Z","content_type":null,"content_length":"66416","record_id":"<urn:uuid:8742d381-7baa-4615-aced-8679dd67c6b0>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20... |
Optioning? Yes, Optioning.
Posted on 30 November 2012 by Andrei
About a day or so ago, Francois announced that eCop will make it possible to make money by selling a domain without actually buying it (click HERE for more details). In my opinion, it’s an option (no
pun intended) that a lot of domainers might find interes... | {"url":"http://domainingtips.com/optioning-yes-optioning.html","timestamp":"2014-04-19T09:25:16Z","content_type":null,"content_length":"30227","record_id":"<urn:uuid:11344750-3ef2-47d9-822a-a1f38a546f74>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00209-ip-10-147-4-33.ec2.internal.w... |
How many sides do certain polygons have?
Quiz ID: #17984
Category: Science > Math
Created By: cacmjc
#1 How many sides does a quadrilateral have?
#2 How many sides does a pentagon have?
#3 How many sides does a decagon have?
#4 How many sides does a heptagon have?
#5 How many sides does a nonagon have?
#6 How m... | {"url":"http://www.braingle.com/wii/trivia/quiz.php?id=17984","timestamp":"2014-04-20T09:07:55Z","content_type":null,"content_length":"13870","record_id":"<urn:uuid:848ce20a-219d-4d5d-b6bc-94462a030b08>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00611-ip-10-147-4-33.ec2.internal.wa... |
IACR News
15:17 [Pub][ePrint] Constant Ciphertext Length in CP-ABE, by Nishant Doshi and Devesh Jinwala Ciphertext policy attribute based encryption (CP-ABE) is a technique
in which user with secret key containing attributes, only able to decrypt the message if the attributes in the policy match with the attributes in ... | {"url":"https://www.iacr.org/news/index.php?p=detail&id=1675","timestamp":"2014-04-19T12:22:11Z","content_type":null,"content_length":"25694","record_id":"<urn:uuid:ff3183e8-1b45-4999-9a94-4185f4b3549d>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00449-ip-10-147-4-33.ec2.internal.wa... |
Integration of trig functions
September 9th 2008, 08:00 AM
Integration of trig functions
Ok so here is my integral:
INTEGRAL of [sin(5x)][cos(6x)]dx
Now this is a pretty simple u-substitution problem, i know that. Except i have one problem. The 5x and 6x inside the two trig functions is throwing me off. Is ... | {"url":"http://mathhelpforum.com/calculus/48299-integration-trig-functions-print.html","timestamp":"2014-04-23T20:32:03Z","content_type":null,"content_length":"8683","record_id":"<urn:uuid:c3591c74-aded-48e7-bad2-9bc157e7def7>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00039-ip-10-... |
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THIS IS VERY IMPORTANT TO MY LIFE!!!!!!!!!!!!! CHECK ME PLEASE... | {"url":"http://openstudy.com/updates/50d48df1e4b069916c84131b","timestamp":"2014-04-20T06:33:09Z","content_type":null,"content_length":"92043","record_id":"<urn:uuid:2cfe644c-d50c-44bb-a547-99b826cbdeae>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00625-ip-10-147-4-33.ec2.internal.w... |
Wolfram unveils interactive education portal on eve of Apple NYC event
post #1 of 22
1/18/12 at 5:47pm
Thread Starter
On the eve of Apple's education-related event in New York City, Wolfram has launched an education portal that features an interactive textbook, dynamic teaching tools and lesson plans.
Wolfram announced... | {"url":"http://forums.appleinsider.com/t/141618/wolfram-unveils-interactive-education-portal-on-eve-of-apple-nyc-event","timestamp":"2014-04-16T16:01:18Z","content_type":null,"content_length":"132046","record_id":"<urn:uuid:4b95a2a4-df52-4f20-83ae-906b41635958>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/... |
Student Interpretation of the Signs of Definite Integrals Using Graphical Representations
Student Interpretation of the Signs of Definite Integrals Using Graphical Representations Documents
Main Document
written by Rabindra R. Bajracharya, Thomas M. Wemyss, and John R. Thompson
Physics students are expected to apply ... | {"url":"http://www.compadre.org/PER/document/ServeFile.cfm?ID=11699&DocID=2576&Attachment=1","timestamp":"2014-04-20T21:28:13Z","content_type":null,"content_length":"14574","record_id":"<urn:uuid:9de7b39a-9dc9-489d-8ee1-397393d58f53>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-0010... |
Proof and Percent
Proof is a term used in the United States to express alcohol concentration of a distilled alcoholic beverage.All non distilled beverages are labeled as Percent alcohol by volume. The proof of any
beverage is double its percent alcohol concentration. A 100 proof whiskey contains fifty (50) percent alco... | {"url":"http://www.sanfranciscoduidefense.com/DUI/The-Criminal-Case/Alcohol/Alcoholic-Beverages/Proof-and-Percent.aspx","timestamp":"2014-04-20T20:57:46Z","content_type":null,"content_length":"16273","record_id":"<urn:uuid:0730f49e-0bc3-46bc-bdf9-e9dd3e2144ff>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/... |
Smallest float different from 0.0?
Mark Dickinson dickinsm at gmail.com
Mon Sep 7 19:33:44 CEST 2009
On Sep 7, 5:08 pm, kj <no.em... at please.post> wrote:
> Hmmm. This close-to-the-metal IEEE stuff make a "HERE BE DRAGONS!"
> alarms go off in my head... (What's up with that correction by 1
> to sys.float_info.mant_d... | {"url":"https://mail.python.org/pipermail/python-list/2009-September/550850.html","timestamp":"2014-04-18T03:56:27Z","content_type":null,"content_length":"4263","record_id":"<urn:uuid:72bba11a-0a90-4e57-a9d8-6a4b1572000f>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00036-ip-10-147-... |
News from the world of maths: I will derive!
Tuesday, June 03, 2008
I will derive!
Mathematicians are known to be good musicians. Here is a mathematical parody of the Gloria Gaynor song, "I will survive". I particularly like the lyrics:
And so now I, I will derive.
Find the derivative of x position with respect to time... | {"url":"http://plus.maths.org/content/news-world-maths-i-will-derive","timestamp":"2014-04-21T12:39:38Z","content_type":null,"content_length":"19256","record_id":"<urn:uuid:98d1d9cc-40b3-4f9d-8fc5-eacc09358f86>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00590-ip-10-147-4-33.ec2.in... |
A Mathematica program for the approximate analytical solution to a nonlinear undamped Duffing equation by a new approximate approach -- from Wolfram Library Archive
A Mathematica program for the approximate analytical solution to a nonlinear undamped Duffing equation by a new approximate approach
Organization: S... | {"url":"http://library.wolfram.com/infocenter/Articles/6267/","timestamp":"2014-04-19T14:40:43Z","content_type":null,"content_length":"36586","record_id":"<urn:uuid:ef212e71-a0fe-4b90-abcb-8a8da35c5b3c>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00512-ip-10-147-4-33.ec2.internal.wa... |
Anuloid (Torus) x line intersection
up vote 2 down vote favorite
I need calculate ray (line) intersection with torus for my ray-tracing program (I know, its to graphics, but i need math behind it).
I can solve equation of order x^4, but thats too way slow (Cardano's method). So is there better way, how to calculate thi... | {"url":"http://mathoverflow.net/questions/43552/anuloid-torus-x-line-intersection/57014","timestamp":"2014-04-17T15:43:42Z","content_type":null,"content_length":"61875","record_id":"<urn:uuid:bff88179-b056-4b1e-ba52-20dd7aa0d8c9>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00421-ip... |
Category: Rich Tasks
GSDMC and Related Ruminations
0 Comments
A friend/co-worker, Andrew, and I hosted a workshop at Greater San Diego Math Council's Annual Conference this past weekend. We titled the workshop "Rich Mathematics Through Project-Based Learning,"
but rather than attempt to give a "here is how you do PBL" ... | {"url":"http://www.doingmathematics.com/2/category/rich%20tasks/1.html","timestamp":"2014-04-19T07:01:07Z","content_type":null,"content_length":"64202","record_id":"<urn:uuid:1cf582fb-4ef3-4f79-a99a-75e289e8c22e>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00385-ip-10-147-4-33.ec2.... |
trigonometry angles.
December 3rd 2012, 06:41 PM
trigonometry angles.
Hello fellow users, I have 2 questions, thanks in advance!
Question 1:
Angle z lies in the second quadrant and http://www.mcgrawhill.ca/school/lear...6/image065.gif . Determine an exact value for sin2z.
K, so when I attempted thi... | {"url":"http://mathhelpforum.com/trigonometry/209014-trigonometry-angles-print.html","timestamp":"2014-04-19T10:04:53Z","content_type":null,"content_length":"11292","record_id":"<urn:uuid:b2b4c816-aa70-4932-a6a4-bc93ec0f88d8>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00213-ip-10-... |
INFSCI 1000
INFSCI 1000: Statistical Analysis of Data
Instructor: Marek J. Druzdzel
"The theory of probabilities is at bottom only common sense reduced to computation." --- Pierre Simon, Marquis de Laplace
"Statistical thinking will one day be as necessary for efficient citizenship as the ability to read an... | {"url":"http://www.pitt.edu/~druzdzel/infsci1000.html","timestamp":"2014-04-20T19:06:01Z","content_type":null,"content_length":"3099","record_id":"<urn:uuid:eaa8fef7-1905-47a0-9d46-88c5017d300b>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00571-ip-10-147-4-33.ec2.internal.warc.gz"} |
Department of Mathematics
Robert Tubbs
Associate Professor
Ph.D. Penn State, 1981
Math 251
Mailing address:
Robert Tubbs
Department of Mathematics
University of Colorado at Boulder
Campus Box 395
Boulder, CO 80309-0395
Personal Website:
Number Theory, especially Transcendental Number Theory ... | {"url":"http://www.colorado.edu/math/people/professors/tubbs.html","timestamp":"2014-04-21T12:37:32Z","content_type":null,"content_length":"6154","record_id":"<urn:uuid:8104e7a0-673f-413b-9d3e-40fd9c99ce2f>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00531-ip-10-147-4-33.ec2.intern... |
Extension of holomorphic maps between real hypersurfaces of different dimension
Shafikov, Rasul and Verma, Kausha (2007) Extension of holomorphic maps between real hypersurfaces of different dimension. In: Annales de l'institut Fourier, 57 (6). pp. 2063-2080.
Full text not available from this repository. (
Request a co... | {"url":"http://eprints.iisc.ernet.in/15379/","timestamp":"2014-04-18T08:30:20Z","content_type":null,"content_length":"25100","record_id":"<urn:uuid:a2fb3fd2-993e-4af8-a005-ec9d556e08db>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00008-ip-10-147-4-33.ec2.internal.warc.gz"} |
5aAA9. A rigorous linear model for the local reverberation time.
Session: Friday Morning, December 6
Time: 10:15
Author: Domenico Stanzial
Location: Dept. of Acoust., C. N. R. Cemoter, v. Canal Bianco 28, 44044 Cassana, Ferrara, Italy
Recent advances in energetic analysis of sound fields show that three local sound fie... | {"url":"http://www.auditory.org/asamtgs/asa96haw/5aAA/5aAA9.html","timestamp":"2014-04-19T20:47:46Z","content_type":null,"content_length":"1768","record_id":"<urn:uuid:ddc9bd17-ddb7-43f6-8de2-29c8ad52af41>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00141-ip-10-147-4-33.ec2.interna... |
comp.ai.neural-nets FAQ, Part 3 of 7: Generalization
Top Document: comp.ai.neural-nets FAQ, Part 3 of 7: Generalization
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By Radford Neal.
Conventional training methods for multilayer perceptrons ("backprop" nets)
can be interpreted in stati... | {"url":"http://www.faqs.org/faqs/ai-faq/neural-nets/part3/section-7.html","timestamp":"2014-04-20T15:17:03Z","content_type":null,"content_length":"33214","record_id":"<urn:uuid:4c303cd9-a4a6-4ebc-b712-de9da0b04f6d>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00292-ip-10-147-4-33.ec... |
Heading 1
The graduate faculty has 11 members and their research interests span a wide variety of mathematical interests. These include linear algebra and matrix theory, modern algebra, graph theory, numerical
analysis, functional analysis, ordinary and partial differential equations and difference equations, operation... | {"url":"https://www.utc.edu/school-education/additionallinks/ccss/index.php","timestamp":"2014-04-16T07:28:15Z","content_type":null,"content_length":"14182","record_id":"<urn:uuid:0e2bae46-20ff-4b06-bcd7-02e03480629d>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00472-ip-10-147-4-33... |
La Marque Algebra 2 Tutor
Find a La Marque Algebra 2 Tutor
...I was so scared because all I heard about it was how hard it was. I had one of my most influential teachers that year, and I grew to love math. I now teach math, largely thanks to my Algebra 1
20 Subjects: including algebra 2, Spanish, geometry, algebra ... | {"url":"http://www.purplemath.com/La_Marque_Algebra_2_tutors.php","timestamp":"2014-04-17T01:36:24Z","content_type":null,"content_length":"23977","record_id":"<urn:uuid:3d8af382-6698-44c6-9c0e-535b18051849>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00309-ip-10-147-4-33.ec2.interna... |
Occoquan SAT Math Tutor
Welcome, parents and students! A good, professional tutor is like a good, professional coach or personal trainer. A serious student who wants to succeed uses a personal tutor the way a pro
basketball player uses a coach, or a pro swimmer uses a personal trainer.
25 Subjects: including SAT ... | {"url":"http://www.purplemath.com/Occoquan_SAT_Math_tutors.php","timestamp":"2014-04-18T21:35:04Z","content_type":null,"content_length":"23709","record_id":"<urn:uuid:f716ef14-23dc-4b06-a0a1-37f3c6d9e2f9>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00447-ip-10-147-4-33.ec2.internal.... |
Introduction to Differential Equations Using Sage
I would use Introduction to Differential Equations Using Sage in an undergraduate introductory Differential Equations (DE) course if my students did not have strong mathematical skills and if no
other software, such as Mathematica, was available.
There are of course man... | {"url":"http://www.maa.org/publications/maa-reviews/introduction-to-differential-equations-using-sage","timestamp":"2014-04-19T01:08:33Z","content_type":null,"content_length":"100249","record_id":"<urn:uuid:eb160f96-9a4c-47c9-8759-7bd397878a55>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-201404160... |
Metric Structures for Riemannian and Non-Riemannian Spaces th edition by Gromov | 9780817645823 | Chegg.com
Metric Structures for Riemannian and Non-Riemannian Spaces 1st edition
Details about this item
Metric Structures for Riemannian and Non-Riemannian Spaces: Metric theory has undergone a dramatic phase transition ... | {"url":"http://www.chegg.com/textbooks/metric-structures-for-riemannian-and-non-riemannian-spaces-1st-edition-9780817645823-0817645829?ii=1&trackid=9aa80b5e&omre_ir=1&omre_sp=","timestamp":"2014-04-18T12:31:24Z","content_type":null,"content_length":"23162","record_id":"<urn:uuid:cc31f961-c903-445f-b854-c56c7ada6b3f>","... |
Fox Island Math Tutor
Find a Fox Island Math Tutor
...I have a Masters Degree in Chemistry from the University of Washington, Seattle, and have been employed as a chemist and educator for over twenty years. I thoroughly enjoy teaching, and tutored
all through my college years. My goal as an instructor is to ensure ... | {"url":"http://www.purplemath.com/Fox_Island_Math_tutors.php","timestamp":"2014-04-18T21:40:27Z","content_type":null,"content_length":"23656","record_id":"<urn:uuid:f9eb3396-60eb-4321-ab20-12502cb739bb>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00284-ip-10-147-4-33.ec2.internal.wa... |
November 7, 2012
By Gianluca Baio
(This article was originally published at Gianluca Baio's blog, and syndicated at StatsBlogs.)
I should start this with a disclaimer, ie that I'm not really claiming any "success" with this post. But I find it quite interesting that the estimations I produced with this very, very simpl... | {"url":"http://www.statsblogs.com/2012/11/07/gotcha/","timestamp":"2014-04-18T03:50:42Z","content_type":null,"content_length":"38324","record_id":"<urn:uuid:89a98303-b563-4d8e-a80c-8761d984b90a>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00440-ip-10-147-4-33.ec2.internal.warc.gz"} |
On the Meaning and Existence of an Effective Population Size
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Genetics. Feb 2005; 169(2): 1061–1070.
On the Meaning and Existence of an Effective Population Size
We investigate conditions under whi... | {"url":"http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1449138/?tool=pubmed","timestamp":"2014-04-18T10:42:46Z","content_type":null,"content_length":"111559","record_id":"<urn:uuid:325e17de-ef69-48e4-9130-b0905c4e108f>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00350-ip-10-147-4-33.e... |
[Numpy-discussion] Is this an indexing bug?
Travis Oliphant oliphant.travis@ieee....
Wed Jun 20 13:38:17 CDT 2007
Sturla Molden wrote:
> On 6/19/2007 12:19 PM, Sven Schreiber wrote:
>> To be more specific, I would expect shape==(4,14).
> >>> h = numpy.zeros((1,4,14))
> >>> h[0,:,numpy.arange(14)].shape
> (14, 4)
> >... | {"url":"http://mail.scipy.org/pipermail/numpy-discussion/2007-June/028260.html","timestamp":"2014-04-16T10:25:38Z","content_type":null,"content_length":"5718","record_id":"<urn:uuid:0c761687-58a5-4e29-b344-916ead2c5e58>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00334-ip-10-147-4-... |
Laws of thermodynamics beyond the von Neumann regime
A recent development in
information theory is the generalisation of quantum Shannon information theory
to the operationally motivated smooth entropy information theory, which
originates in quantum cryptography research. In a series of papers the first
steps have been... | {"url":"https://perimeterinstitute.ca/videos/laws-thermodynamics-beyond-von-neumann-regime","timestamp":"2014-04-20T21:42:46Z","content_type":null,"content_length":"28839","record_id":"<urn:uuid:60032455-4111-402d-aa59-62b2971f6e4e>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00552-... |
arrays with booleans
Join Date
Oct 2010
Rep Power
List the steps the code must do to solve this problem.
What do you need for this: the user inputs 4 boolean values
Then when you have all for values,
what do you need to do for this: if exactly one of the 4 inputed values ... | {"url":"http://www.java-forums.org/new-java/33026-arrays-booleans.html","timestamp":"2014-04-20T13:31:14Z","content_type":null,"content_length":"126373","record_id":"<urn:uuid:186fb11a-306c-4cc5-9d88-446d60863a7a>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00264-ip-10-147-4-33.ec2... |
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balance the equations using the correct coefficients then writ... | {"url":"http://openstudy.com/updates/50f71667e4b007c4a2eb3499","timestamp":"2014-04-16T19:39:38Z","content_type":null,"content_length":"42376","record_id":"<urn:uuid:66cbc61b-b501-4c3b-b1d1-2dd23fab531d>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00089-ip-10-147-4-33.ec2.internal.... |
One-To-One Property
September 28th 2009, 02:28 PM
One-To-One Property
"Use the One-to-One Property to solve the equation for x."
According to my book, the 1-1 property states that:
"For a>0, and a≠1, $a^x = a^y$ if and only if x = y."
I don't know how I can translate that into my problem...
September 28... | {"url":"http://mathhelpforum.com/pre-calculus/104872-one-one-property-print.html","timestamp":"2014-04-18T09:21:31Z","content_type":null,"content_length":"5325","record_id":"<urn:uuid:7015ea4c-c6c4-43ad-ba85-99d9b9225eb4>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00229-ip-10-147-... |
(i) Naturalnumber system
1, 2, 3, … are called natural numbers (or counting numbers). The set of all natural numbers is denoted by N.
N = {1, 2, 3, …}
(ii) Whole number system
0, 1, 2, 3, … are called whole numbers. The set of all whole numbers is denoted by W.
W = {0, 1, 2, 3, 4, …}
All natural numbers are whole numbe... | {"url":"http://www.tutornext.com/math/numbers.html","timestamp":"2014-04-19T04:33:07Z","content_type":null,"content_length":"16820","record_id":"<urn:uuid:ac67d149-4ede-465d-96bc-5650582d02de>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00147-ip-10-147-4-33.ec2.internal.warc.gz"} |
Tsunami Help to find formula
February 28th 2007, 02:07 AM #1
Feb 2007
Tsunami Help to find formula
If a tsunami started t the west of Mexico. How long will it take the tsunami, travelling at 200 m/s, to travel 900Km across the Pacific Ocean to reach Japan ?
Thanks, Chhoeuk
distance = (rate)(time)
In... | {"url":"http://mathhelpforum.com/math-topics/12034-tsunami-help-find-formula.html","timestamp":"2014-04-18T17:25:31Z","content_type":null,"content_length":"31945","record_id":"<urn:uuid:c5216e5e-adde-4c1b-aea0-057037bb4f8a>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00155-ip-10-14... |
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=9828&page=188","timestamp":"2014-04-19T04:21:48Z","content_type":null,"content_length":"92584","record_id":"<urn:uuid:2160f01b-88c8-489f-9fad-b1380bcad564>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00592-ip-10-147-4-33.ec2.interna... |
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if a 30 foot silo cast a 20 foot shadow what is the approximat... | {"url":"http://openstudy.com/updates/5185a87ee4b09587cd39cffb","timestamp":"2014-04-17T04:10:38Z","content_type":null,"content_length":"98039","record_id":"<urn:uuid:b41d664d-aeee-496b-8f23-f3c8bd347381>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00023-ip-10-147-4-33.ec2.internal.... |
Seventeenth Edition of the Carnival of Mathematics: "At Seventeen, I Learned the Truth"
[This edition of the Carnival is dedicated to our 12-year old Golden retriever, Teddy, who passed away on 9-15-07. He was everyone's 'best friend' and gave far more than he received. When my mom
passed away recently, my 4-year old g... | {"url":"http://mathnotations.blogspot.com/2007/09/seventeenth-edition-of-carnival-of.html?showComment=1190508840000","timestamp":"2014-04-18T18:10:53Z","content_type":null,"content_length":"215707","record_id":"<urn:uuid:c4951aa7-7f5a-42ae-899c-f916fcef1d8f>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-... |
Polynomial Rings Over Fields
May 31st 2013, 02:53 AM #1
Polynomial Rings Over Fields
I am reading Dummit and Foote Section 9.5 Polynomial Rings Over Fields II and need some help and guidance with the proof of Proposition 15.
Proposition 15 reads as follow:
Proposition 15. The maximal ideals in F[x] are the ... | {"url":"http://mathhelpforum.com/advanced-algebra/219479-polynomial-rings-over-fields.html","timestamp":"2014-04-17T01:16:09Z","content_type":null,"content_length":"64629","record_id":"<urn:uuid:99639457-f60b-4291-a001-ca2a73ee7376>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00270... |
Molality, Molarity, Mass Percentage, Mole Fractions
31 August 2004 - 3:12pm | by Anonymous
Can anyone help me with this problem.
A sulfuric acid soln. containing 571.6g of H2SO4 per liter of soln has a density of 1.329g/cm3. Calculate the a) mass percentage; b) the mole fraction; c) the molality; d) the molarity of the... | {"url":"http://www.webelements.com/forum/node/235","timestamp":"2014-04-19T13:22:06Z","content_type":null,"content_length":"19493","record_id":"<urn:uuid:800a8c5e-9182-4919-8c18-6517b48bf123>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00126-ip-10-147-4-33.ec2.internal.warc.gz"} |
solvability of an elementary functional equation
up vote 2 down vote favorite
Is there some other way to characterize the functions $f:\mathbb Z\times \mathbb Z\to \mathbb Z$ which are expressible as $$f(x,y)=g(x)+g(y)-g(x+y)$$ for some $g:\mathbb Z\to\mathbb Z$?
Easy facts: (1) $f$ must satisfy $f(x,y)=f(y,x)$ and $f(... | {"url":"http://mathoverflow.net/questions/60666/solvability-of-an-elementary-functional-equation","timestamp":"2014-04-19T04:25:17Z","content_type":null,"content_length":"71659","record_id":"<urn:uuid:09c2beb8-9c06-4253-8dfe-22bb938bd981>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215... |
Levittown, PA SAT Tutor
Find a Levittown, PA SAT Tutor
...While there, I took several classes with other German students (as opposed to classes designed for American students). I also learned a great deal about other subjects, including Chemistry,
all levels of Math up to Calculus I (I achieved a 760/800 on my Math... | {"url":"http://www.purplemath.com/Levittown_PA_SAT_tutors.php","timestamp":"2014-04-20T04:22:59Z","content_type":null,"content_length":"23960","record_id":"<urn:uuid:c82b8306-501e-45fb-a17f-e4d3b041886a>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00457-ip-10-147-4-33.ec2.internal.... |
How to find more (finite almost simple) groups with a given Sylow subgroup
up vote 11 down vote favorite
I'm looking for some examples of actions on Sylow p-groups, and often those actions appear in the case of finite almost simple groups. Given a finite almost simple group, I understand in principle
how to calculate i... | {"url":"http://mathoverflow.net/questions/23975/how-to-find-more-finite-almost-simple-groups-with-a-given-sylow-subgroup","timestamp":"2014-04-16T11:01:55Z","content_type":null,"content_length":"61206","record_id":"<urn:uuid:0dc9ec0e-e85b-40ec-ba89-f600e1c6c9ed>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/war... |
FOM: Boolean algebra vs Boolean ring
Vaughan Pratt pratt at cs.Stanford.EDU
Wed Mar 11 20:04:30 EST 1998
From: Stephen G Simpson <simpson at math.psu.edu>
>Does it mean that you don't distinguish basic operations
>from derived ones?
When appropriate. In the class notes for my course "Algebra for Computer
Scientists" I... | {"url":"http://www.cs.nyu.edu/pipermail/fom/1998-March/001409.html","timestamp":"2014-04-18T08:03:36Z","content_type":null,"content_length":"7873","record_id":"<urn:uuid:58db412b-a3d5-43bc-ade2-679058402ca5>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00565-ip-10-147-4-33.ec2.inter... |
SAMR Model of Technology Integration
by Pip Cleaves, Lead Consultant at Design | Learn | Empower on Jul 28, 2013
The SAMR Model of technology integration supports teachers to focus on the use of technology to enhance student learning outcomes.
The SAMR Model of technology integration supports teachers to focus on the u... | {"url":"http://www.slideshare.net/piphowell/samr-model-of-technology-integration","timestamp":"2014-04-21T15:08:09Z","content_type":null,"content_length":"178442","record_id":"<urn:uuid:d916df51-958e-4c50-b60a-36121fb3b522>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00248-ip-10-14... |
Maths Unit 20 - Curve fitting - 4. Goodness of fit
4. Goodness of fit
We now know how to find the line of best fit. The important question is: How good is the fit? We need a measure to say how good the fit is, i.e. to describe how strong the relationship is.
Mathematicians use the correlation coefficient as the standar... | {"url":"http://academic.sun.ac.za/mathed/Shoma/MATUNIT20_04.htm","timestamp":"2014-04-17T17:16:31Z","content_type":null,"content_length":"13359","record_id":"<urn:uuid:d8cec10f-2548-42b2-a0a7-5f7e56709c9b>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-20140423032004-00385-ip-10-147-4-33.ec2.interna... |
MathGroup Archive: November 2010 [00095]
[Date Index] [Thread Index] [Author Index]
Re: Balance point of a solid
• To: mathgroup at smc.vnet.net
• Subject: [mg113613] Re: Balance point of a solid
• From: Andreas <aagas at ix.netcom.com>... | {"url":"http://forums.wolfram.com/mathgroup/archive/2010/Nov/msg00095.html","timestamp":"2014-04-17T07:15:07Z","content_type":null,"content_length":"27236","record_id":"<urn:uuid:31822184-9b94-4dbe-863b-a949ccb4b8d5>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00138-ip-10-147-4-33.e... |
Bianchi Attractors: A Classification of Extremal Black Brane Geometries
Extremal black branes are of interest because they correspond to the ground states of field theories at finite charge density in gauge/gravity duality. The geometry of such a brane need not be
translationally invariant in the spatial directions alo... | {"url":"http://www.newton.ac.uk/programmes/BSM/seminars/2012052909309.html","timestamp":"2014-04-19T13:07:07Z","content_type":null,"content_length":"6156","record_id":"<urn:uuid:2bea35ad-714c-4af6-8bc3-d0f97cd92451>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00443-ip-10-147-4-33.e... |
Disecrete Probability Distributions Help Needed
April 2nd 2008, 06:30 PM #1
Mar 2007
East Meadow, NY
Disecrete Probability Distributions Help Needed
I'm totally lost on the following two problems, can anyone please help me out? Thank you in advance!
1. Survey conducted showed that the average commuter s... | {"url":"http://mathhelpforum.com/advanced-statistics/33032-disecrete-probability-distributions-help-needed.html","timestamp":"2014-04-21T00:36:50Z","content_type":null,"content_length":"39210","record_id":"<urn:uuid:ba6deda2-3220-4ecf-b3ac-1b7c72bccdb2>","cc-path":"CC-MAIN-2014-15/segments/1397609539337.22/warc/CC-MAIN... |
Posts about Hilbert basis theorem on Delta Epsilons
Posted by Akhil Mathew in algebra, commutative algebra.
Tags: Artin-Rees lemma, completions, exact functors, Hilbert basis theorem, Noetherian rings
2 comments
So, we saw in the previous post that completion can be defined generally for abelian groups. Now, to special... | {"url":"http://deltaepsilons.wordpress.com/tag/hilbert-basis-theorem/","timestamp":"2014-04-21T04:50:08Z","content_type":null,"content_length":"46207","record_id":"<urn:uuid:998b7939-8483-42a0-80f5-86ebae4bb789>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00357-ip-10-147-4-33.ec2.i... |
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Perris Math Tutor
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Posts by
Posts by Nam
Total # Posts: 9
What is the different between tissue-specific knockout mouse and an inducible knockout mouse
3 over a+2 over 3a =11 over 15
What is the different between tissue-specific knockout mouse and an inducible knockout mouse
42 meter = 0.042 kilometer 1*20/0.042 = 476 revolutions
animal ... | {"url":"http://www.jiskha.com/members/profile/posts.cgi?name=Nam","timestamp":"2014-04-19T00:05:31Z","content_type":null,"content_length":"7430","record_id":"<urn:uuid:222b349c-1a3f-4967-b285-86a10cb3e6cc>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00229-ip-10-147-4-33.ec2.internal... |
5:06 PM
Digital Logic and Microprocessor Design with VHDL (soon with Verilog)- Enoch O. Hwang, La Sierra University, Riverside, CA. This book will teach students how to design digital logic circuits,
specifically combinational and sequential circuits. Students will learn how to put these two types of circuits together ... | {"url":"http://indraunib.blogspot.com/","timestamp":"2014-04-19T20:14:40Z","content_type":null,"content_length":"102081","record_id":"<urn:uuid:78b0c3ea-8db4-48a0-a76f-7dbd0c86c2bc>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00081-ip-10-147-4-33.ec2.internal.warc.gz"} |
IDL Reference Guide: Procedures and Functions
The ROT function rotates an image by an arbitrary amount. At the same time, it can magnify, demagnify, and/or translate an image.
If you want to rotate an array by a multiple of 90 degrees, you should use the ROTATE function for faster results.
This routine is written in... | {"url":"http://climserv.ipsl.polytechnique.fr/documentation/idl_help/ROT.html","timestamp":"2014-04-17T09:49:28Z","content_type":null,"content_length":"10673","record_id":"<urn:uuid:386d03a8-903d-4572-acca-e6b365831824>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00184-ip-10-147-4-... |
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graph the system of linear inequalities. Then state two possib... | {"url":"http://openstudy.com/updates/50cd00d7e4b0031882dc296c","timestamp":"2014-04-19T20:06:35Z","content_type":null,"content_length":"61124","record_id":"<urn:uuid:c8c56ef4-ef1b-47fa-b318-d835c736d287>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00646-ip-10-147-4-33.ec2.internal.... |
About the boundedness of a multiplication operator.
up vote 2 down vote favorite
Let be $f$ a $2\pi-$periodic function and $\hat{f}(k)=\frac{1}{2\pi}\int_0^{2\pi}f(x)e^{-ikx}dx$. Consider the operator: $$Tf(x)=\sum_{k\in\mathbb{Z}}sign(k)\ \hat{f}(k)\ e^{ikx}.$$ I would like to
know if the operator $T:L^p(0,2\pi)\right... | {"url":"http://mathoverflow.net/questions/122870/about-the-boundedness-of-a-multiplication-operator/122885","timestamp":"2014-04-17T12:45:52Z","content_type":null,"content_length":"55347","record_id":"<urn:uuid:07739cc8-13bc-4f0e-b90e-ec62a90a9434>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-2014... |
Resolution: standard / high
Figure 4.
Number of ultrasound-guided biopsy sections required for quantitative analysis. Evaluation of the number of ultrasound-guided biopsy sections required for quantitative analyses of CD68, CD3 and CD20
cells. Reduction in the percentage mean difference can be obtained by studying 2.... | {"url":"http://arthritis-research.com/content/9/5/R101/figure/F4","timestamp":"2014-04-20T00:44:27Z","content_type":null,"content_length":"11933","record_id":"<urn:uuid:01062aff-0790-463e-afab-b1475d1a0c6f>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00245-ip-10-147-4-33.ec2.interna... |
Home page - Pensacola State College
Credit Hours: 4
Contact Hours: 4
Laboratory None.
Prerequisites: Appropriate score on Florida Entry-Level Placement Exam or
MAT0018 Developmental Mathematics I
Corequisites: There are no corequisites for this course.
Catalog This course is designed ... | {"url":"http://pensacolastate.edu/code/includes/coursesyllabi.asp?cnum=MAT0028%20&term=20141","timestamp":"2014-04-24T19:22:19Z","content_type":null,"content_length":"18192","record_id":"<urn:uuid:44d83f03-a00d-4b44-8bfb-8669a4c60b51>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-001... |
09-08-2009 #1
Registered User
Join Date
Sep 2009
Can not get this program to work?
When I run this program, I am not getting this answer:
"You will eat 76 meals at Subway and 74 meals at Lazy Moon."
"You will have $1 left on your card."
Heres the Question:
You will prompt the user for the follow... | {"url":"http://cboard.cprogramming.com/c-programming/119373-can-not-get-program-work.html","timestamp":"2014-04-17T23:18:33Z","content_type":null,"content_length":"95168","record_id":"<urn:uuid:d16446eb-39a8-4840-9b92-58c68fd03ee7>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00638-... |
2 factorizing questions
April 14th 2009, 06:56 PM #1
Apr 2009
how do you factorize:
1) (x-1)^2 - (x-5)^2
2) -2x^2 -20x - 18
how do i show my workings out for them?
(x-1)^2 - (x-5)^2 = (x-1-(x-5))*(x-1+(x-5))=(x-1-x+5)*(x-1+x-5)=4(2x+4)=8(x+2)
For the second one:
assume it equals zero, fi... | {"url":"http://mathhelpforum.com/algebra/83783-2-factorizing-questions.html","timestamp":"2014-04-18T09:01:39Z","content_type":null,"content_length":"36735","record_id":"<urn:uuid:49e6af80-7069-4bb9-adbc-d7277d9e3490>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00580-ip-10-147-4-33... |
Understanding Bit-wise Operators
To understand how to use the bit-wise operators, it is necessary to understand what a bit is. A bit is nothing more than digit in the base 2 representation of a number. (Binary) Yeah, that's the
cliche 00101001. The digits here are 0 or 1. So a bit can be a 0 or a 1. On or off. Open or... | {"url":"http://www.dreamincode.net/forums/topic/259516-understanding-bit-wise-operators-in-java/page__pid__1509119__st__0","timestamp":"2014-04-18T18:02:21Z","content_type":null,"content_length":"75286","record_id":"<urn:uuid:826c0e4a-b534-47f5-a2cf-eee7b6724c75>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/war... |
Electromagnetic analysis of axially symmetric diffractive lenses with the method of moments
We present the electromagnetic analysis of axially symmetric diffractive lenses. Analysis is performed by numerically solving the electric and magnetic field integral equations using the method of
moments, and it exploits axial ... | {"url":"http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-17-4-729","timestamp":"2014-04-19T16:33:40Z","content_type":null,"content_length":"96023","record_id":"<urn:uuid:172a6d21-0ed4-4b1b-ac28-55d84f346da4>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00058-ip-10-147-4-33.... |
GNSS Reference Stations
The Global Navigation Satellite System (GNSS) is a network of satellite-based systems for positioning and navigation on the ground, in the air or in orbit. Apart from the space segment, each system
also has a control segment, responsible for the system’s maintenance and quality control, and a gr... | {"url":"http://geodesy.hartrao.ac.za/site/en/geodesy-equipment/gnss-reference-stations.html","timestamp":"2014-04-20T08:14:06Z","content_type":null,"content_length":"41416","record_id":"<urn:uuid:8cb96693-ebdb-46a7-bdae-4e5c7e849b11>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00258... |
Untitled Document
1216 K  
34 pp.
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Title Infinite Multiplets
Author(s) Nambu, Y.
Publication 1967
Report COO--264-403; EFINS--67-80
Unique ACC0280
Other CONF-670824--3; OSTI ID: 4574063
Research Enrico Fermi Institute for Nuclear Studies & Department of Physics, ... | {"url":"http://www.osti.gov/cgi-bin/rd_accomplishments/display_biblio.cgi/left?id=ACC0280&numPages=34&fp=N","timestamp":"2014-04-20T01:04:40Z","content_type":null,"content_length":"7614","record_id":"<urn:uuid:71dc73fe-70a7-4b3a-a804-2ebf6edb194c>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-201404... |
Mira Mesa, San Diego, CA
Carlsbad, CA 92009
Recent Cal Poly graduate who loves tutoring math!
I am a recent graduate from Cal Poly looking for students in need of a
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Primes proof
December 20th 2005, 12:04 PM #1
Junior Member
Dec 2005
a bet, got to win
i need to prove that there are infinite souletions to
the multifaction of the first n/ln(n) primes is smaller then n^2
i found up that my equetion is wrong
since n/ln(n) equals the number of primes between zero and... | {"url":"http://mathhelpforum.com/number-theory/1492-primes-proof.html","timestamp":"2014-04-19T17:43:58Z","content_type":null,"content_length":"30732","record_id":"<urn:uuid:9f64fd52-e9ef-40b2-b914-fb7339cfd4c2>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00376-ip-10-147-4-33.ec2.i... |
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More Geometry!
• one year ago
• one year ago
Your question... | {"url":"http://openstudy.com/updates/50c4a357e4b0c673d53dd9f0","timestamp":"2014-04-19T17:13:42Z","content_type":null,"content_length":"119649","record_id":"<urn:uuid:93f98701-7b5c-4c09-8856-649922ad3099>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00472-ip-10-147-4-33.ec2.internal... |
Upper Triangular matrix
How do I show that the inverse of an upper triangular matrix is also upper triangular? Thanks
Another way: write $A = D + N$, where D is the diagonal part of A and N is the strictly upper-diagonal part of A. If A is invertible then so is D (because A and D have the same—nonzero—determinant);
and... | {"url":"http://mathhelpforum.com/advanced-algebra/191848-upper-triangular-matrix.html","timestamp":"2014-04-20T18:10:12Z","content_type":null,"content_length":"44744","record_id":"<urn:uuid:e0598bb1-b915-470b-be27-b19e986aae0f>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00066-ip-1... |
Introductory Calculus: Second Derivative TestAlgebraLAB: StudyAids
Regions of Concavity up or down AND Maximum and Minimum Values of a Function
Notice that the derivative equals 0 when x = -1 or +1.
It can be shown that the derivative is positive when x < -1 and x > +1, and is negative when -... | {"url":"http://algebralab.org/studyaids/studyaid.aspx?file=Calculus_7-6.xml","timestamp":"2014-04-18T09:04:25Z","content_type":null,"content_length":"31677","record_id":"<urn:uuid:5ebe351a-9470-465f-a519-effff484782a>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00233-ip-10-147-4-33.... |
Sudoku Automation Solver Challenge – R
June 14, 2013
By Francis Smart
On a recent flight I was bored waiting for the plane to land and I tried out the electronic sudoku game that they had offered. I found the game surprisingly interesting as I realized that it is far
more entertaining when you cannot use paper or penci... | {"url":"http://www.r-bloggers.com/sudoku-automation-solver-challenge-r/","timestamp":"2014-04-18T10:41:15Z","content_type":null,"content_length":"40247","record_id":"<urn:uuid:a27cf1c6-e0ea-4ffb-9c2a-49eaa2de0ddd>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00281-ip-10-147-4-33.ec2... |
velocity and acceleration
October 10th 2009, 07:53 PM #1
Sep 2009
velocity and acceleration
Given that the acceleration vector is
the initial velocity is
and the initial position vector is
v(t) and r(t)
So far, i have v(t) = <sin(-t)+1, -cos(-t), 2t^2+1>
r(t) = <cos(-t)+t+1, t, (2/3)t^3+t+1>... | {"url":"http://mathhelpforum.com/calculus/107262-velocity-acceleration.html","timestamp":"2014-04-21T12:31:11Z","content_type":null,"content_length":"35957","record_id":"<urn:uuid:8c1b38fe-5234-46df-819e-4434d69187d4>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00600-ip-10-147-4-33... |
Mathematical Ethnographies
Mathematical Ethnographies
Is doing research in mathematics a creative process? When mathematicians talk of their subject as beautiful, what do they mean? What are their motivations? Their dreams? Their disappointments?
These themes are explored in the collection of short films seen here. Pro... | {"url":"http://www.maths.bris.ac.uk/research/videos/","timestamp":"2014-04-19T06:53:20Z","content_type":null,"content_length":"8163","record_id":"<urn:uuid:ea2945c8-57bc-4bd5-9219-2d70f10adafc>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00249-ip-10-147-4-33.ec2.internal.warc.gz"} |
Tyngsboro SAT Math Tutor
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Try a sample lesson!
Basic Math Lesson 2.2
Tour the software
You need the Flash Player to play the sample lessons.
Download the Flash Player
. Depending on your browser's settings, you may be prompted to download the Flash 6 player. This is NOT needed to play a sample lesson.
[Note: The samples here are for demonstrati... | {"url":"http://www.modumath.org/home/index.htm","timestamp":"2014-04-20T10:47:55Z","content_type":null,"content_length":"7185","record_id":"<urn:uuid:a736c095-bd44-40f1-a497-8ef670308aad>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00011-ip-10-147-4-33.ec2.internal.warc.gz"} |
Digging Up 3-Digit Cube Roots
Over in the Mental Gym, you can learn how to mentally work out the cube root of any perfect cube up to 1,000,000!
It's time to take that feat to the next level, so in today's post, you'll learn how to mentally work out the cube roots of perfect cubes between 1 million and 1 billion!
BASIC... | {"url":"http://headinside.blogspot.com/2013/11/digging-up-3-digit-cube-roots.html","timestamp":"2014-04-17T00:48:32Z","content_type":null,"content_length":"664691","record_id":"<urn:uuid:8f6f932c-f1c9-4edb-b17e-26fb8091526c>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00187-ip-10-14... |
MathGroup Archive: February 1997 [00055]
[Date Index] [Thread Index] [Author Index]
Re: selecting from lists
• To: mathgroup at smc.vnet.net
• Subject: [mg6184] Re: [mg6120] selecting from lists
• From: fransm at win.tue.nl (Frans Marte... | {"url":"http://forums.wolfram.com/mathgroup/archive/1997/Feb/msg00055.html","timestamp":"2014-04-17T04:03:19Z","content_type":null,"content_length":"37177","record_id":"<urn:uuid:ebd5e187-790f-47df-b0e4-8751b3a67ba6>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00421-ip-10-147-4-33.e... |
Plainfield, IL Calculus Tutor
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Math Forum Discussions
Date Subject Author
1/29/13 Endorsement of Wolfgang Mueckenheim from a serious mathematician David Petry
1/29/13 Re: Endorsement of Wolfgang Mueckenheim from a serious mat... | {"url":"http://mathforum.org/kb/message.jspa?messageID=8201022","timestamp":"2014-04-19T12:01:06Z","content_type":null,"content_length":"105783","record_id":"<urn:uuid:a2045b19-1fe0-47bb-a5f4-d923793ff0f0>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00451-ip-10-147-4-33.ec2.interna... |