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

Feb2313 09:24 AM
micromass

1 
46,178 
http://i49.tinypic.com/30lch2b.jpg
they take members from the marked series
how they make the power to be from n1...

Jun1710 02:13 PM
LCKurtz

2 
736 
What is the difference between forward and backward Fourier transforms? I'm look:
F(k) = \int_{\infty}^{\infty}...

Jun1710 10:29 AM
n.karthick

1 
3,429 
Say you have two functions, F(x,y), and G(x,y), and you want to expand them in finite fourier series. Let their...

Jun1610 06:53 AM
elibj123

2 
3,069 
Hello friends,
I am having some trouble with a particular statement an author made in a book.
Despite being a...

Jun1510 04:40 PM
mathman

1 
1,832 
Hi,
I know from my the t shifting theorem that if I take the laplace transform of a function which is multiplied by...

Jun1510 12:25 PM
Ben Niehoff

1 
2,570 
Hey everyone,
I know, lots of threads and online information about Gaussian integrals. But still, I couldn't find...

Jun1510 11:39 AM
Orbb

7 
2,002 
So I've got my exam of analysis tomorrow, but there's this piece of improper integrals I just don't get... (I'll...

Jun1410 08:24 PM
DrRocket

5 
1,146 
Hi,
I came across a book which looks at a problem like
\lim_{x \to 0}\frac{1}{x}
So you approach from 0, and...

Jun1410 07:30 PM
darkside00

8 
3,437 
The latex code here is doing all sorts of odd things... :( ... anyway,
The convolution algebra is...

Jun1410 07:06 PM
DrRocket

2 
2,118 
i have to describe the construction of the Riemann Integral... in 46 sentences.. and i was wondering.. if this is...

Jun1410 04:02 PM
HallsofIvy

3 
879 
Can you give an example of a function f:X\times Y\to\mathbb{R}, where X,Y\subset\mathbb{R}, such that the integral
...

Jun1410 02:16 PM
Ben Niehoff

7 
892 
My textbook describes how some functions are not well approximated by tangent planes at a particular point. For...

Jun1410 07:54 AM
Shaybay92

4 
1,121 
Having a hard time understanding this example from a book:
The function f(x) = 1/x is locally bounded at each point...

Jun1410 07:16 AM
Office_Shredder

1 
948 
Example 1 in
http://en.wikipedia.org/wiki/Chebyshev_polynomials
to get the Chebyshev expansion coefficient of...

Jun1410 12:41 AM
tghg

0 
756 
Suppose f(x) is differentiable 2 times, can I still use Maclaurin polynomial approximations and write:
...

Jun1410 12:08 AM
estro

12 
1,936 
hello,
Im reading goldblatt's NSA book, and i just finished the first part.
i have what i think are some trivial...

Jun1310 11:52 PM
jem05

4 
1,020 
I am reading Schutz's "Geometrical methods of mathematical physics". He writes: "A map f:M>N is continuous at x in M...

Jun1310 05:20 PM
Landau

8 
1,116 
Hello, I'm wondering what the reason for repeat linear factors in partial fractions is?
I can't find an explanation...

Jun1310 01:06 PM
Mark44

8 
1,444 
sec(x) = \frac{2}{e^{ix}+e^{ix}}
then i multply bot top and bottom by e^{ix}
so i can do a u...

Jun1310 08:59 AM
Gib Z

7 
1,491 
Hello everyone! I just graduated from high school and now moving on to college. I want to get my bachelors in Computer...

Jun1310 12:39 AM
sponsoredwalk

4 
2,354 
One the things which always bugged me about the definition of the integral is that limit of a Reimann sums consists of...

Jun1210 10:13 PM
pellman

7 
1,576 
Integration is not one of my strong points, so I just wanted to make sure I did it correctly.
I am working with...

Jun1210 04:40 PM
tuoni

0 
1,179 
Hello forumites! I got another question (I have a lots of them, maybe I should change my textbook haha).
Suppose...

Jun1210 06:55 AM
Landau

12 
1,144 
1. Sequences of function and their uniform convergence. (most priority)
2. Series of function and their uniform...

Jun1210 12:32 AM
estro

2 
1,180 
Hi, I've been trying to prove this statement for a while now but haven't made much progress:
Suppose...

Jun1110 04:29 PM
mathman

1 
2,441 
Hi!
I need to know how to work with quadric surfaces to draw a 3D structures in a code. However I have no idea how...

Jun1110 08:56 AM
tirwit

4 
1,236 
Hi how to solve this type of integrals
{t^{k+n}}/{(1+qt)(1+t)^{2k+3}}dt
here n is natural number if some one...

Jun1110 01:08 AM
raghavendar24

5 
1,275 
can anyone recommend calculus textbooks that cover material after calculus II?

Jun1010 11:18 PM
sponsoredwalk

1 
2,022 
Supose:
\sum c_n = \sum (a_n+b_n) (*1)
\sum a_n is conditionaly convergent (*2)
\sum b_n is absolutly...

Jun1010 10:01 PM
estro

4 
859 
Let y_n be a sequence of functions in \mathcal{C}(, \mathbb{R})
Suppose that every subsequence of y_n has a...

Jun1010 06:08 PM
Malmstrom

2 
681 
Let F and y both be continuous for simplicity. Knowing that:
\int_0^x F'(t)y^2(t) dt = F(x) \quad \forall x \geq 0 ...

Jun1010 04:15 PM
Malmstrom

3 
840 
(PROBLEM SOLVED)
I am trying to think of a complex function that is nowhere differentiable except at the origin and...

Jun1010 02:36 PM
jeffreydk

0 
749 
So I have to use the type I type II region formula to find the volume under the equation (2xy) and over the circular...

Jun1010 11:09 AM
tinytim

1 
2,995 
In the polar formula for arc length, ds^{2}=dr^{2}+r^{2}d{\theta}^{2}, what is the exact meaning of the r^2 term...

Jun1010 09:33 AM
Gib Z

7 
3,714 
Can anyone advise me on the bordered hessian matrix for maximising a function of 3 variables, subject to two...

Jun1010 07:44 AM
storyman

0 
2,579 
let be \int_{0}^{\infty}xdx \int_{0}^{\infty}ydy
changing to polar coordinates we get that the double integral...

Jun1010 05:35 AM
Gib Z

3 
974 
Does the open mapping theorem for bounded operators send closed sets to closed sets as well? I am trying to prove to...

Jun1010 02:54 AM
lunde

0 
1,135 
Specifically, how do you prove the quotient rule using a similar method that Leibniz used for the product rule?:...

Jun910 10:33 PM
pcvrx560

2 
2,382 
Hi all,
I've been messing around with the product of Poisson distributions and was hoping someone could help me...

Jun910 07:57 PM
jacobcdf

2 
816 
Does anyone know how to prove the following identity:
\Sigma_{k=0}^{n}\left(\stackrel{n}{k}\right)...

Jun910 02:41 PM
JSuarez

1 
1,141 