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General Math

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Common math questions, quality answers.
Y 10:02 AM Greg Bernhardt 
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Test your skills. Math challenges will be posted at least once a week. Suggestions for problems are welcomed. Brought to you by Office_Shredder.
Jul22-14 04:33 PM pasmith 
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Jan16-12 Greg Bernhardt
Please post any and all homework or other textbook-style problems in one of the Homework & Coursework Questions...
Feb23-13 09:23 AM
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I have done some research and it seems like the option to add axes to VectorFieldPlot isn't available in my 6.0.0...
Jul9-09 09:01 PM
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Just had a simple question. but jus wanted to know if it had a simple answer... Is there any way to know if a given...
Jul9-09 06:44 PM
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Yeah i wanna learn some mathematical physics, since i cant just jump from my classes to that different section yet,...
Jul9-09 03:33 PM
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Suppose you pick a random integer n. If it is even, divide the number by 2, if it is odd, multiply it by three and add...
Jul9-09 12:23 PM
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I am trying to compute the following, \prod_{j=0}^{N-1}\left where \hat{I}, \hat{M(j)} are matrices. My problem...
Jul9-09 12:14 PM
4 4,983
\lim_{x\rightarrowy}\frac{sin{x}-sin{y}}{x-y} so this is the question. I'm here solving this problem you please...
Jul9-09 06:26 AM
4 797
1)We know this limit doesn't \lim_{x\rightarrow-\frac{2}{3}}\frac{2}{2+3x} exists after substituting the value ot...
Jul9-09 06:19 AM
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Hello, correct me if I am wrong, but as far as I know if 2 functions f(x) and g(x) are periodic with Tf and Tg...
Jul8-09 02:42 PM
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I'm reading a paper on tissue cell rheology ("Viscoelasticity of the human red blood cell") that models the creep...
Jul8-09 11:50 AM
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I don't trust myself for reading this alone. Is this valid? ...
Jul7-09 11:17 PM
3 895
Hi , A friend sent me this website, and I was wondering how it worked, ...
Jul7-09 09:14 PM
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Hi, I am pursuing graduate studies in economics, and I hear that "measure theory" is one of the classes that will...
Jul7-09 07:30 PM
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I'm whacked outta solving these problems just hanging around for more than 2 hours for each question but can't solve...
Jul7-09 07:05 PM
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I have found alot of information about how to solve and graph parametric equations, but what I want to know is, what...
Jul7-09 01:49 PM
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Need information about GRE subjective mathematics. can any one help me in this regard
Jul7-09 08:46 AM
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How do I understand them and what they do? I've memorized "soh-cah-toa", but I still don't get what is the point of...
Jul7-09 02:22 AM
7 903
Dear all, I need to evaluate some data from questionnaires (in the form of scale of values from 0 to 10) and I...
Jul6-09 03:50 PM
1 975
I was doing some conversions from binary to decimal and vice versa today using Windows Calculator and I noticed the...
Jul6-09 03:11 PM
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Ok so you can't apply the quotient criteria to the harmonic series because: lim_{k\to \infty}|\dfrac{a_{k+1}}{a_k}|...
Jul6-09 09:53 AM
5 928
DG being differential geometry and FA being functional analysis. Some specifics would be appreciated. i.e anyone...
Jul6-09 08:20 AM
0 705
Are they equivalent in some sense?
Jul6-09 08:02 AM
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Hey, Not sure if this is in the right place, move if necessary. So, I know about SUVATs, and non-constant...
Jul6-09 01:23 AM
16 3,939
Given an n x m matrix, in which there is a column of 0's or a row of 0's, would it be equivalent to write the matrix...
Jul5-09 09:55 PM
3 601
I really, really suck at proving things. Do you know of any free online resource one could use to master proving...
Jul5-09 09:12 PM
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Looking at how the fourier transform comes about from the fourier series when the period goes to infinity, they make...
Jul5-09 04:34 PM
Nick R
3 2,620
A very stupid question... I hope there's an answer!!!
Jul5-09 04:04 PM
5 2,749
Hi, I don't know where to post this question, so I'm posting it here. I wish to study some basic properties of...
Jul5-09 02:18 PM
1 519
Physical interpretation of gradient says that its a vector normal to equipotential (or level) surface \phi(x,y,z) = 0...
Jul5-09 10:49 AM
1 2,195
log9 (p) = log12 (q) = log16 (p+q) What is q/p? 9^x + 12^x = 16^x calculate x (4/3)^x = q/p I guess that...
Jul5-09 10:33 AM
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Who was it that associated n-tuples with vectors (was it originally Hamilton's work)?...or were n-tuples defined as a...
Jul5-09 06:02 AM
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From what I'm reading, Xj = aijXi (X is a vector and the subscript for a is i)...though I'm not sure where the aijXi...
Jul4-09 07:51 PM
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Hello, I am a CS graduate student, and I have a curious optimization problem which i need to solve, and have no...
Jul4-09 03:30 PM
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From what I think, any physical value has at most 3 parts - 1)Orientation - Or more explicitly, the angle that it...
Jul4-09 11:01 AM
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Hi, does any one know how many squares of side 1 millimeter can fit in a big square of side 1000.25 millimeters ? ...
Jul4-09 12:32 AM
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is there a general formula for the sum of the first n^m numbers where m is an integer i know there exists one...
Jul3-09 11:32 PM
1 665
Is there a fundamental difference between operators and functions? For example we could have F(x,y)=x+y or we...
Jul3-09 05:41 PM
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some broad questions about foundations of math. what kind of logic/set theory should be used to study logic in...
Jul3-09 04:34 PM
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I'm studying the Partial Fraction method of integration, and I believe I understand the fundamental idea of it. ...
Jul3-09 04:55 AM
The Anomaly
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I find it difficult to understand mathematical papers. Please can someone help by giving me clues on how to understand...
Jul2-09 08:08 PM
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I`ve started to read on FOM, and unfortunately I found the first paragraph cumbersome to get. Here is the text I...
Jul2-09 01:01 PM
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