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

Feb2313 09:24 AM
micromass

1 
46,190 
Hi
Could you please tell me how to integrate it? Thanks ~~
\int_{\infty}^{\infty} \frac {e^{i\omega t}}...

Nov1808 01:46 PM
maze

1 
2,180 
I am having trouble remembering the correct approach here. This is in regards to deriving a governing equation for...

Nov1908 06:08 AM
tinytim

1 
1,548 
I know its a really dumb question and if i reached this far in math i should know but..how do you draw the diagrams...

Nov2008 05:51 AM
HallsofIvy

1 
1,339 
Show that if E is a Borel measurable subset of R, then {(x,y) xy is in E} is also measurable in the product space of...

Nov2108 09:24 AM
Pere Callahan

1 
1,480 
this is the question,
Prove that if f is continuous on (a,b] and if f is bounded on then f is integrable on . ...

Nov2308 05:23 PM
lurflurf

1 
3,075 
Howdy Ho, partner.
I have a series of functions {f_{n}} with f_{n}(x) := x^{n} / (1 + x^{n}) and I am investigating...

Nov2308 08:46 PM
morphism

1 
1,555 
Does anybody know substitutions that can be used for the following integrals:
\int (a^2  b^2 \cos\theta)^{3/2}...

Nov2408 06:21 PM
Peeter

1 
1,090 
I've been reading Gunning and Rossi's book on complex analysis in several variables (good book!).
They define...

Nov2708 06:12 AM
lark

1 
1,009 
Hi. I am having trouble getting started on this problem.
I need to find the Laurent series for: f(z) = exp in...

Dec208 08:32 PM
mutton

1 
1,434 
hi there!
I´m doing vector analysis the last two weeks and I feel unsure about this identity. Can anyone of you say...

Dec108 01:28 PM
Marin

1 
971 
Is it always true that if; f(x) = f '(x), then; f (x) =  \int f '(x) ?
That is, the negative of a derivative...

Dec108 08:35 PM
adriank

1 
1,050 
I got a relation as follow
\lambda_k = \frac{2 n(\lambda_k) L}{k}
where \lambda_k is a wavelength at mode k, k...

Dec208 01:16 PM
CompuChip

1 
1,033 
Sorry me again
THE CRC tables define the above integral as
using sqrt(x^2a^2)
let t(x) = sqrt(x^2  a^2)
...

Dec508 10:45 AM
morphism

1 
2,103 
kindly make h or d the subject of the formula
y={1/2pi(dh)}ln(d/h)
thank u
Moderation Note: email address...

Dec508 10:08 AM
Defennder

1 
1,020 
Ok, so a teacher showed an example in class awhile back. So im going over my notes right now, and I don't understand a...

Dec708 05:07 AM
tinytim

1 
1,362 
I'm looking at Gullstrandplainleve coordinates in Kerr metric. While on the whole, it seems pretty straight forward,...

Dec1008 03:56 AM
stevebd1

1 
1,580 
P=P0ekt
I'm given that a population doubles in number in 4 hours. Does that mean the k in the function equals 0.5...

Dec908 07:43 AM
Defennder

1 
1,205 
I am having trouble understanding how to find the limit of a summation. I know the formulas and properties but cannot...

Dec1008 12:23 AM
Lyuokdea

1 
5,917 
Hi,
I have an integral that I find quite difficult, I can't obtain anything from mathematica (but I'm far from...

Dec1008 02:28 PM
CompuChip

1 
552 
Hi all, i found this problem in a topology book, but it seems to be of an analysis flavour. I'm stumped.
Show that...

Dec1508 01:56 PM
Citan Uzuki

1 
779 
If I were given a problem to find this limit:
...

Dec1508 12:01 PM
Citan Uzuki

1 
1,494 
Hey everyone,
I have a system that I know the x,y,z position and the alpha,beta,gamma euler rotation of an object...

Dec1508 05:37 PM
D H

1 
2,679 
I've looked everywhere for a method or approach to break down this integral, but so far, nothing. If anyone has any...

Dec2008 02:01 AM
adriank

1 
1,305 
\Gamma(z) = \int\limits_0^{\infty} t^{z1} e^{t} dt
I can see that if \textrm{Re}(z)>0, then the integral...

Dec2208 07:35 AM
Santa1

1 
1,529 
Hello! Let's see if you can give me some advice on this:
I want to describe a function with a sum of real...

Dec2208 04:04 PM
Dr. Lady

1 
7,883 
Hi,
I am working on the derivation of an equation on electrokinetic flow in microfluidic.
I am stuck at a point...

Dec2308 12:51 AM
lurflurf

1 
3,050 
Assuming that I understood correctly one claim from the Riemann's On the Number of Prime Numbers less than a Given...

Dec2908 01:25 PM
mathwonk

1 
1,468 
I'm facing the following problem which sounded simple but apparently it is not (at least for me):
I have two...

Dec2708 11:14 PM
jostpuur

1 
1,643 
Hello!
Is there any way of calculating the integral of H_n(x) * H_m(x) * exp(c^2 x^2) with x going from infinity...

Jan509 06:51 PM
jostpuur

1 
3,079 
Hi
In my lecturer's notes he describes the unit tangent to a curve y=Y(X) as
(i + Y'(X)j)/^2)^(0.5)]
in an...

Jan609 12:41 PM
HallsofIvy

1 
905 
See the link, please
http://camoo.freeshell.org/quest1.pdf
Laura

Jan809 10:13 PM
lark

1 
655 
A force F of 6 units acts in the direction 30 degrees west of north. An object is
constrained to move northwesterly,...

Jan909 10:33 AM
radou

1 
829 
I haven't taken calculus yet, but I'd like to determine the closest parameter value for when a parametric curve...

Jan1409 10:45 AM
TacTics

1 
1,217 
Whatever is a schlicht domain (complex analysis)?
Laura

Jan1409 07:28 AM
lark

1 
1,066 
Hi, I'm just asking this out of curiousity, but I have never really understood the difference between calculus and...

Jan1309 12:23 AM
NoMoreExams

1 
4,681 
Hello, I have a question on how to do something. I'm not sure whether calculus or trigonometry is needed. this is...

Jan2409 03:41 PM
gammamcc

1 
1,572 
Hello, this question is about symmetry of polar coordinates.
For a polarcurve to be symmetric around the xaxis we...

Jan1609 07:17 AM
D H

1 
1,230 
Let Pn be the statement : any postage of n >= 2 cents can be made of
3cent and 2cent stamps. What is wrong with the...

Jan2109 01:27 PM
CompuChip

1 
707 
My teacher told me it was best to learn in words. can anyone help me with the correct why to write these.
Let n be...

Jan2109 07:09 PM
Bacat

1 
4,549 
We've covering numerical integration in one of my classes this semester, however I'm sort of at a loss as to how to...

Jan2409 06:37 AM
MathematicalPhysicist

1 
986 