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

Feb2313 09:23 AM
micromass

1 
33,200 
Between N points one can design N*(N1)/2 distances. As in a three dimensional space, there is 3*N coordinates, for N...

Jun105 10:51 AM
Patricio

0 
894 
Is \infty  \infty = 0?

Jun105 01:01 AM
Alkatran

18 
1,716 
I am having a pretty hard time differentiating between the difference between these two things:
Mutually Exclusive,...

May3105 07:55 AM
uart

5 
2,944 
.0834 = .5 \sqrt { 1  v^2 }
What is v^2?

May3005 07:26 PM
HallsofIvy

31 
1,945 
I'm giving a talk in a few days about Newton Polygons for polynomials and I was wondering if anyone knew of a few...

May3005 03:23 PM
snoble

0 
2,180 
I'm graphing equations, and I ran into a snag. I assumed that the graph would be the same for both of the following:...

May2905 06:00 PM
The Rev

3 
2,737 
I have a question about grid generation:
I made a simple 2D grid using Transfinite Interpolation. For this method,...

May2805 10:12 PM
cristiant

0 
3,559 
How do I find the line of intersection of two planes? I have an idea, but both of the planes have a 2z
ie. ...

May2805 10:13 AM
mattmns

9 
13,382 
A gratuitous bit of self publicity, but at
www.maths.bris.ac.uk/~maxmg/maths
are some bits of maths people may...

May2705 12:40 AM
honestrosewater

6 
947 
It seems like this shouldn't be too difficult and yet i'm stumped.
I am trying to prove the binomial theorem.
...

May2705 12:30 AM
AKG

2 
1,834 
How do you find the area of a sphere based on it's volume?

May2605 05:53 PM
Serj

16 
9,007 
How can you derive the gradient of a vector R^3 to R in cylindrical coordinates?

May2605 03:52 PM
quasar987

1 
15,660 
i have a problem graphing trig functions such as f(x) = 2cos(3x+pi/2) 1
i know this should be very simple but i am...

May2605 10:34 AM
dextercioby

1 
1,513 
Hi all,,
I have a problems on complex Analysis:
Show that the equation
z^4 + z + 5 = 0 has no solution in the set...

May2605 02:28 AM
goldi

13 
1,466 
Here is the question: "could you fine n>2 (n natural number) so that: a^n+ b^n=c^n with a, b and c real numbers".
I...

May2505 07:07 PM
whozum

9 
1,091 
Hi,
Does anyone know a reason why \int_{\infty}^{\infty}\cosh(x)^{n}dx (n>0) can be evaluated analytically when n...

May2505 06:30 AM
broegger

11 
6,675 
Hello, I'm in need of a hint or few pointers on how to calculate the angle C of the picture attached. I've already...

May2405 07:26 PM
Pyrrhus

2 
1,391 
Let f(x) and g(x) be functions.
Then if limit of f(x)/g(x) = 1. That implies lim f(x) = lim g(x) right?
...

May2405 06:35 PM
whozum

7 
8,992 
Problem:
I have a computer image of a grid "square" from an aviation chart. The "square" is actually approximately...

May2405 03:42 PM
HenryHallam

0 
3,690 
Hi,
Can you tell me how to prove the following?
Given a set of n distinct points in the plane such that for any...

May2405 07:28 AM
didi

5 
3,619 
A circle of radius R is centered at the origin. The yintercept (positive) is at (0, R). As we shift the circle to the...

May2305 09:41 PM
Icebreaker

9 
1,365 
A club consisting of seniors and juniors has 15 members. After seven more seniors and three more juniors join the...

May2305 07:08 PM
mathman

3 
6,030 
Hi, i was working with my teacher, and i discovered the continous differential of x!gives x!,also the continous...

May2305 03:22 PM
shmoe

2 
1,038 
I didn't see a topology forum, so I thought I'd post this question here. Can anyone give any pointers on using van...

May2305 12:18 PM
matt grime

7 
4,142 
Suppose you are conducting a hypothesis test to compare two sample means from independent samples, with the variance...

May2305 12:01 PM
uart

2 
40,518 
:uhh: I can normally do combinations and permutations, but these two currently stump me. Any help is appreciated. ...

May2205 09:04 AM
Apophis

3 
918 
The problem asks me to show that the maximum possible area for a rectangle
inscribed in a circle of radius R is 2R^2....

May2105 02:36 PM
mathwonk

5 
8,587 
hello all:
I have tried to solved the following problem, however, I was stucked. thanks for the help:
x, y z are...

May2105 07:16 AM
Vivek Sharma

10 
3,258 
hi,
i have been working on an Options assignment, and i have this formula as one of my answers:
...

May2105 01:42 AM
honestrosewater

1 
4,287 
I plan to take the course elementary differential equations during the summer period, however I have experience up...

May1905 06:11 PM
GCT

12 
1,311 
Could someone please direct me to a good web page or comment on the main difference between the euler lagrange eqn and...

May1905 08:54 AM
dextercioby

1 
1,262 
Hi,
In this Problem i am finding Problem to calculate the set of z:
Pls help
Determine all z \subset C for which...

May1905 04:08 AM
heman

4 
904 
I am confused of shifting a linear equation.
Let f(x)=ax+b
And g(x) is identical to f(x+2)+5
For example, we create...

May1905 03:38 AM
primarygun

22 
2,794 
does .999~ = 1 or not?

May1905 03:22 AM
ahrkron

3 
1,184 
i have 69 distinct positive whole numbers between 1 and 100. i pick out 4 integers a,b,c,d. prove that i can always...

May1805 11:22 PM
neurocomp2003

3 
2,827 
How do I factor this equation
x^31

May1805 09:28 PM
Curious3141

14 
1,430 
Hey all!
This is one problem I haven't been able to solve. I've had a class on theorems relative to circles and...

May1805 07:34 PM
PeteSF

10 
1,026 
Quick question.
To differentiate y = 20x (2x  1)^6 I need to use the product rule:
y = uv \ \Rightarrow \...

May1805 04:47 PM
arildno

6 
1,183 
What Is The Maximum Number Of One Inch Diameter Spheres That Can Be Packed Into A Box 10 Inches Square And Five Inches...

May1805 09:15 AM
extreme_machinations

8 
2,062 
Hi, I need help on the following problem on Fourier series:
Let phi(x)=1 for 0<x<pi. Expand
1 = \sum\limits_{n =...

May1705 10:57 PM
meteorologist1

1 
1,408 