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

Feb2313 09:24 AM
micromass

1 
39,994 
if we know the value of the divergence of a grident field at each point, div ( grad f ) = g, how can we compute the...

Apr1709 04:41 PM
dancingpig

0 
1,157 
I have a quick question about integration after a change of variables has been made.
Suppose there is a function ...

Sep1305 07:57 PM
dand5

2 
1,110 
Suppose you are solving equations in the interval 0<=xx<=2pi....Without actually solving equations, what is the...

Jan808 09:31 PM
rohanprabhu

2 
2,924 
I’m going to say from the beginning that I need to hand this problem in. I'm not looking for the answer, I think I...

Feb1808 06:15 PM
Dani4941

2 
1,936 
I have to present it in front of the class so I’m trying to make it as clean and correct as possible.
If someone...

Apr2108 07:33 AM
HallsofIvy

6 
2,769 
In my selfstudy Calculus book I finished with the 'intuitive' definition of the limit and the text directed me to the...

Dec1508 02:10 AM
lion0001

2 
12,375 
for the equation... y = x^3  2x^2 5x +2
is its local minima at (2.120,8.061)
Thanks

Apr1608 05:34 PM
HallsofIvy

5 
3,493 
How does one show that z^{1/3} is not unique in the complex plane?
Thanks,
Daniel

May2109 03:56 PM
bobmerhebi

3 
870 
My friend told me that they had just learned an equation to find the length of a function. I decided that it would be...

Nov1905 12:40 PM
TD

4 
11,502 
Hey,
This is just a small question about Cauchys theorem.
If there is a function f(z) such that int f(z)dz = 0...

Oct1211 03:42 PM
HallsofIvy

2 
571 
For a graph of any function, one of following conditions is said to exist so as for it to be symmetric:
a graph is...

Apr1310 12:55 PM
Danish_Khatri

2 
1,471 
The integral of (sin(t)cos(t)) has two possible solutions: {(sint)^2}/2 and {(cost)^2}/2 eventhough these two...

Jul1410 12:45 PM
Danish_Khatri

3 
952 
so I have a implicit diffentiation problem and was wondering if someone could help me out.. I need to figure out how...

Jul2208 01:47 PM
dankelly08

4 
1,004 
Say we have f(x, y). We can Fourier decompose it in terms of f1(y, v) and e^{\ x\ v}, f2(x, u) and e^{\ u\ y}, or both...

Jun1412 03:38 PM
Mandlebra

2 
1,302 
so,
6! = 6*5*4*3*2*1
(n+2)! = (n+2)(n+1)(n)!
(2n+2)! = (2n+2)(2n+1)(2n)!
(500n+3)! =...

May311 04:14 AM
TylerH

3 
677 
Hi again! Time for one more of my newbie questions.
I'm reading "Elementary Calculus: An Approach Using...

Nov204 01:38 PM
danne89

3 
911 
Hi again! Now I can't understand f(x) = c\Rightarrow f'(x) = 0, where c is a constant. I think I should be undefined. ...

Nov404 05:47 PM
Hurkyl

17 
2,686 
Hi. I can't get what I'm doing wrong here. If somebody points that out, I'm really gratefull.
u = (6 + 2x^2)^3...

Nov404 08:07 AM
danne89

6 
638 
My book tolds me that: \lim_{n\rightarrow\infty} \frac{n(n+1)}{2n^2}= \frac{1}{2}. I don't get it. Maybe this with...

Dec804 03:43 PM
fourier jr

3 
1,008 
A common definition I've read: A derivative of a arbitrary function is the change in one given instant.
It's hard...

Feb2505 05:49 AM
danne89

11 
2,254 
How did Newton solve Zeno's Paradox of the Arrow which is stated as follows:
1. When the arrow is in a place...

Apr605 11:24 AM
arivero

15 
1,914 
Suppose g1 , g2 ,... are any numbers that satisfy the inequalities
0 < gn < 1 and (1 − gn )gn+1 > 1/4 for all n.
...

Sep909 12:29 PM
LCKurtz

1 
891 
I have a question regarding fluid streamline vector,
why is it different from the usual position vector when you take...

Oct2009 10:14 AM
arildno

3 
1,187 
I've recently read about Null Identities of vector analysis.
I'm having a problem in understanding what is it by...

Oct2209 11:35 AM
danong

4 
712 
Sorry but i have a question regarding Laplace Equation,
say if a potential function P represents the inverse square...

Oct2309 07:30 AM
danong

2 
2,155 
I had just reviewed back the properties of Delta Dirac Function, however i'm having a little confusing about the first...

Oct2809 11:52 AM
danong

14 
1,565 
What is the derivative of the function f(x)= max(u(x),v(x)) ?
where u(x) and v(x) are two given function

Feb511 06:36 PM
micromass

3 
4,319 
so i'm having problems with the coefficients in this problem.
\int(10z+8/z^28z+41)dz
i know that the main...

Mar2508 08:04 PM
Pere Callahan

3 
3,369 
I'd like to delete it.

Apr2004 02:41 PM
dapet

0 
2,460 
Because the administrators recomend to post the topics from classical geometry here, there's one covering problem,...

May304 03:21 PM
dapet

0 
1,155 
Hello, I need help with a very hard integral, I was trying several steps and I tried in the software "derive" but the...

Oct3111 02:50 AM
JJacquelin

1 
746 
Hi i need help finding the volume of a partially filled sphere. I know that there is an equation to do this but i...

May2009 08:08 AM
NickMJames

18 
18,713 
Hi, I need help with this calc2 question. Basically they want me to find the volume obtained by region bounded by...

Feb508 06:30 PM
kentm

3 
20,566 
Here's the question, what should u do to check whether the randomness of number given uot by computer is indeed...

Jul3004 07:01 PM
suffian

7 
1,542 
Does anyone have access to the paper "LINE INTEGRALS WITH RESPECT TO ARC LENGTH" by Easton and Steiner? It was...

May610 05:13 AM
darkchild

0 
655 
Is there an analog or a more general form of the rule
\frac{d}{dx} \int_{a}^{t} F(t) dt = F(x)
that covers the...

Mar1311 08:50 AM
HallsofIvy

9 
3,068 
In a research problem (related to statistics), I've encountered a kdimensional Dirichlet integral of the form:
...

Jun3008 12:23 AM
DarkEternal

0 
1,508 
Hi
Could anyone give me a hint on getting a closed form for the following integral:
\int\frac{1}{k + sin(x)}dx
...

Nov1813 08:26 PM
darkfeffy

2 
568 
An example of implicit differentation in Stewart, 6th ed, p 883, is given as follows:
x^3 + y^3 + z^3 + 6xyz = 1
...

Jun710 01:24 AM
Mark44

1 
2,709 
Any help would be much appreciated  Is it possible to say the following?
If z = g(s+at) + f(sat), let u = s+at...

Sep2712 06:00 PM
darkp0tat0

2 
1,469 