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

Feb2313 09:23 AM
micromass

1 
39,009 
Hello,
I am trying to calculate normal vector for surface F Nf (see attached picture) to calculate velocity component...

Aug409 06:26 AM
andykol

5 
9,980 
I need to solve for t and it's slipped my mind how to manipulate this.
\frac{1}{4}=te^{8t}
to
ln(1/4)=lnt8t...

Aug409 01:36 AM
John Creighto

9 
1,581 
Hi all,
Does anybody know of any graduate level math texts with extremely difficult problem sets (olympiad level...

Aug409 12:25 AM
bpet

7 
1,677 
Hi, I am trying to graph
(x+(1/√(1+cos(x)²)))
in mathematica, and i used
Plot
but I am not getting an...

Aug309 04:23 PM
slider142

2 
8,211 
I would like to compute the power distribution that maximizes the sum data rate of a certain communication scheme. The...

Aug309 11:10 AM
miggimig

0 
669 
I apologies if this is in the wrong place!!!
I'm a Computer science person with a keen interest in maths and...

Aug309 03:28 AM
sam_wilson

4 
903 
Hello,
Can we interchange the natural logarithm "ln" operator and the integral operator?
Regards

Aug209 01:55 PM
g_edgar

2 
2,039 
So today I wanted to prove that x/(xk) is continuous for x\neq k. I have to show that for all \varepsilon>0 there...

Aug109 05:50 PM
jgens

1 
801 
So heres how it goes.
Find the coordinates of the centre and the radius of the circle
x^2 + y^2  4x + 6y 12 =0
...

Aug109 11:39 AM
HallsofIvy

5 
807 
Can somebody demonstrate :
\{{n!}}}} < \left( {1 + \frac{1}{n}} \right)^n
\]
ITS not A HOMEWORK

Aug109 09:40 AM
Arhimede

13 
1,208 
Hello,
I came across a text saying that if
\int^{\infty}_{\infty}P(x)=1
then...

Aug109 05:51 AM
Boxc

1 
640 
Hello everyone.
I have been doing some searching, but I haven't come across any good articles on Benford's law in...

Aug109 05:29 AM
Boxc

0 
735 
Hi,
I am a college freshman and have taken Calculus I,II,III (covering derivatives, integrals, series and vectors)...

Jul3009 10:37 PM
symbolipoint

2 
903 
I got this from physics' double slit experiment. The way it is done on the physics book is by approximation. Since i...

Jul3009 03:02 PM
cshum00

1 
766 
Would a perfectly circular set of point charges appear to be one point charge if you could see the electric field?...

Jul3009 12:49 PM
uart

3 
1,195 
Hi,
I was thinking back at the days when I took calculus and how we had to prove things like the product rule etc. ...

Jul3009 05:32 AM
n!kofeyn

6 
1,419 
Hi all
Can anyone give me some websites which are on problem solving. When i mean problem solving, i mean logical...

Jul3009 05:28 AM
n!kofeyn

1 
1,132 
Hi every body
I am trying to intergrate the following function using Maple:
...

Jul2909 07:51 PM
g_edgar

1 
876 
Hey all.
I'm actually a math and chemistry major at the Univ. of Illinois Chicago. I have a competitive GPA,...

Jul2909 12:49 PM
ryanj123

4 
6,217 
Hey,
I was wondering. Since the Fourier Series coefficients can just be represented in the form of a Fourier...

Jul2809 09:49 PM
jasonRF

9 
6,581 
Hello,
What I really want to do is deal with spherical "crescents" and incomplete annuli and see how well they are...

Jul2809 06:37 PM
flatmaster

1 
2,816 
If A is a group and B is a subgroup of A, what is A/B? I don't need a definition really, just the term or name for...

Jul2809 07:54 AM
dx

2 
1,023 
In an experiment I am performing, I observed the following:
Result is directly proportional to A
Result is...

Jul2709 11:19 PM
EliteLegend

4 
983 
I have a function I want to model. It is periodic, but the period keeps decreasing. Basically, it'll be a periodic...

Jul2709 08:33 PM
flatmaster

0 
521 
Hello all,
Is there any way to make the Gamma function \Gamma defined at z=0? Because in my calculations, I have a...

Jul2709 04:51 PM
S_David

18 
2,251 
Hi! I'd like to ask the following question.
Does it make sense to take unions and intersections over an empty set?...

Jul2709 01:38 PM
n!kofeyn

4 
2,436 
Thanks

Jul2709 01:27 PM
n!kofeyn

6 
1,051 
Hi whats up, Can someone tell me what it means to create 3 sub functions that have both points of intersection with...

Jul2709 01:15 PM
HallsofIvy

2 
3,022 
Can anyone help me rearrange this equation so that t is isolated please, it's driving me nuts.
x = tB + (1  t)A
...

Jul2709 08:01 AM
HallsofIvy

14 
931 
Hi guys whats up. I just have a small question i wish to ask. If you are given vertex(2,3) and it passes through...

Jul2609 02:24 PM
cruisx

6 
1,445 
NOTE: plz ignore the in maple part of this!
hi everyone, is there a quick way i can graph f(x,y) = 0 in maple? I've...

Jul2609 12:46 PM
uart

2 
3,772 
I was looking at some of the questions from various competitions for high schools and colleges and their questions,...

Jul2409 05:03 AM
gunch

2 
2,850 
Alright, I have a question that I know is very dumb, but despite my best efforts I've been unable to come up with an...

Jul2309 02:55 PM
YellowPeril

13 
3,860 
http://library.thinkquest.org/10796/ch1/ch1.htm
I have some down time for the next 3 months and figured I might as...

Jul2309 08:24 AM
hassman

8 
1,200 
I've been typing up all my papers/homework in Maple 12 but numerous professors have suggested I get LaTeX or Tek (is...

Jul2309 06:44 AM
Edgardo

5 
796 
Frequently, I have encountered optimization problems which involve finding the optimal function to maximize the ratio...

Jul2309 05:29 AM
arildno

3 
2,634 
I haven't had much exposure to limits and trying to understand it by myself has lead me into deep realms of...

Jul2209 11:52 PM
n!kofeyn

18 
2,329 
How would one solve the equation f '(2x) + g '(4x) =  x?

Jul2209 06:51 PM
Hurkyl

3 
1,215 
i know this is possible to find with iteration, but is it possible to find it algebraically?

Jul2209 04:31 PM
3hlang

6 
1,670 
Hi there,
I have a big problem following the derivation in the following paper:
...

Jul2209 02:27 PM
Bazman

0 
870 