Please post any and all homework or other textbookstyle problems in one of the Homework & Coursework Questions...

Feb2313 09:24 AM
micromass

1 
40,083 
Taken from http://en.wikipedia.org/wiki/Elliptic_integral:
Is it just me, or does it seem like there is an...

Oct405 11:06 AM
selfAdjoint

3 
3,491 
Anyone care to explain the concept of gaussian quatrature? I've tried some websites but they're a little over my head....

Oct305 05:52 PM
Dr Transport

3 
2,011 
Does anyone know how to prove Fubini's Theorem? In multivariable calc., I just accepted it as true but never learned...

Oct205 06:40 PM
Hurkyl

28 
4,868 
I am trying to follow a proof of \Gamma(\frac{1}{2}) = \sqrt{\pi} but in the way i have found this equality:
...

Oct205 05:36 PM
Castilla

16 
2,700 
If I had a function g(x) defined by
g(x) = \int_{\infty}^{\infty} f(x) \delta(x) dx
where \delta(x) is the...

Oct205 08:49 AM
HallsofIvy

4 
2,291 
My book says:
let p stand for partial, u is a function
p(uAx) / px = pu(Ax)/px + up(Ax)/px
How can it be...

Oct105 06:52 AM
Noone1982

6 
1,296 
are the integrals:
\int_a^{b}dnf(t,n) and
\int_a^{b}dnf(t,n)r(n)+\int_a^{b}dkf(t,k)g(k) the same?..i know that...

Sep3005 09:41 PM
Hurkyl

2 
1,486 
This thread is kind of an extension of my last, so pardon any overlap.
1) dW = F • dL
My teacher says "careful...

Sep2905 11:07 AM
quasar987

3 
1,403 
Hey everyone,
First of all, I hope this is an OK place for a topology question. I was debating here or of course...

Sep2805 10:00 PM
philosophking

3 
2,215 
I'm a bit confused on something elementary.
If X is a Hilbert space and A is a subset of X and is uncountable. What...

Sep2805 06:15 PM
Tzar

2 
1,153 
Hi all.
I'm doing some self studying on limits, and...I have the following problem with this problem...
Prove:...

Sep2805 01:59 PM
Timbuqtu

1 
1,510 
This integral is driving me nuts :cry: , anyone got a clue?
Given two real variables X and Y, one defines the...

Sep2805 11:16 AM
loloPF

4 
1,071 
I encountered this problem in one of my math lecture notebooks; Our professor didnt show how it was done, so that...

Sep2705 10:15 PM
relinquished™

3 
1,316 
Suppose you start with the number 0. If you Integrate 0 you get 1.
Next, if you integrate 1 to get x + C, but for...

Sep2705 03:49 PM
Edwin

22 
6,031 
This is not a specific homework question so much as it is a general conceptual question.
My analysis book includes...

Sep2605 10:24 PM
Hurkyl

18 
3,146 
When is th ebest time to use it and what are some good rules of thumb for it?

Sep2605 05:21 PM
HallsofIvy

7 
3,806 
Can anyone help me solve this?
\frac{\partial}{\partial t} \int_{0}^{t} f(r,t)g(r)dr
That's the generalized...

Sep2605 03:07 PM
Castilla

12 
25,208 
Hi, I have a question about doing derivative with respect to a vector, can someone help please.
Problem:
Suppose A...

Sep2605 12:27 PM
robphy

3 
6,656 
:confused: derivating a from v (lorentz transform)
...

Sep2505 01:17 AM
jaap de vries

2 
1,162 
This is a problem I found on the internet. In fact, I'm not even in analysis but I'm interested in how it's done.
...

Sep2505 12:54 AM
jaap de vries

2 
1,024 
What general constraints on the coefficients of a polynomial of degree n do I need to impose to guarantee that this...

Sep2405 06:13 PM
Hurkyl

15 
3,188 
I postet the formula below (attachment). I don't know how we can get from the first step to the second. I mean why...

Sep2405 03:50 PM
mathman

1 
1,309 
What do you guys think about Calculus by Shlomo Sternberg? IS this a good combination to learn calculus thoroughly:
...

Sep2305 11:28 PM
DeadWolfe

1 
1,453 
the modified dirichlet function (1/q if x is rational = p/q, 0 if x is irrational) is integrable. How is it...

Sep2305 03:17 PM
asdf60

2 
6,677 
In a book of Introduction to Probability I found this statement:
" Let be F(x) = \int_{\infty}^{x} f(t)dt. Then,...

Sep2305 12:41 PM
Castilla

2 
3,034 
Is it correct that \sin x=\sin x as x\rightarrow 0?
It's clear for a function like y=x, but I ask the question...

Sep2305 08:39 AM
Kamataat

2 
6,303 
This journal is the journal that will record my progress through the text:
Basic Concepts of Mathematics by Elias...

Sep2205 05:03 PM
JasonRox

30 
8,306 
Are there online calculus videos? I'm interested in either calculus lectures or AP Calculus lectures.
Thanks!
Mark

Sep2105 12:11 PM
mlowitz

3 
8,478 
What I'm trying is to rewrite this as on this webpage http://en.wikipedia.org/wiki/Series_%28mathematics%29 under the...

Sep2105 09:40 AM
arildno

2 
1,108 
Can someone explain why the following improper integral diverges?
Integral 1/x dx from 1 to 1
I know if you...

Sep2105 09:17 AM
Galileo

3 
1,298 
Can someone please check my work, thank you
Discuss any discontinuities. classify each discontinuity as removable...

Sep2105 07:36 AM
HallsofIvy

1 
1,427 
Thanks on the help on the other thread.
I, however, have yet another question. In the line integrals, how is it...

Sep2105 07:25 AM
HallsofIvy

5 
1,206 
I know this is a chem question in general, but the steps needed to solve this are more mathematical.
This is not a...

Sep2005 04:06 PM
shanerbaner

1 
1,319 
I'm drawing a blank as to how to approach this one. I've been looking over all trig identities and substitutions I...

Sep2005 10:35 AM
HallsofIvy

5 
3,112 
*Let f\left( x \right) be a twicedifferentiable function for which
\; \mathop {\lim }\limits_{x \to 0^  }...

Sep2005 09:38 AM
VietDao29

1 
1,120 
Hi All,
I'm looking for the conformal mapping (using complex functions) that maps the unit circle (or the upper...

Sep2005 04:24 AM
vanesch

1 
4,846 
integral of e^(x^2)dx?

Sep2005 12:07 AM
shmoe

8 
1,522 
lim of
cos((x^2 + y^2)  1)/(x^2 + y^2)
as (x,y) approaches (0,0)
I have no clue how to tackle this problem....

Sep1905 11:13 AM
HallsofIvy

5 
9,503 
Say we have a vector, lets use something simple like
A = 2xyi + 3yzj
Say we want to find the work done on a...

Sep1905 04:07 AM
TD

3 
982 
this one looks simpler but i need another one of those tricks i guess:
the limit as x>pi/2 from the left of:
...

Sep1805 01:42 PM
thenewbosco

1 
1,002 