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

Feb2313 09:23 AM
micromass

1 
33,243 
On a recent outing with friends we came up on a debate and im hoping someone can help me find out who was right. The...

May1809 01:31 PM
CRGreathouse

7 
1,380 
I searched around a while on the site to see if I could find a thread that could answer this question and was unable...

May1809 12:10 PM
Dragonfall

1 
3,425 
Give a rigorous proof using the appropriate axioms and the definition ,\frac{a}{b}=a\frac{1}{b} of the following:
...

May1809 01:54 AM
evagelos

9 
1,703 
can anyone tell me how it works, like visually, what does it do. Im curious.
iv heard its a three point approximation...

May1709 07:26 AM
HallsofIvy

1 
3,230 
hello,
I was trying to figure out what will be the y value for this equations:
1  e^0.15*10^5*y = 0.1
...

May1609 02:52 PM
Georgepowell

8 
1,373 
hi,
I was wondering how can i use actual symbols like partial derviates, integration, or derivation etc etc symbols...

May1609 02:39 PM
dx

2 
711 
Hello,
During my derivation, I am faced with the following integral:
...

May1609 09:29 AM
aaryan0077

3 
1,388 
I mean, e is (1+(1/n))^n as n approaches infinity.
Now, if you put \infty instead of n, you get...

May1609 09:28 AM
aaryan0077

20 
14,989 
Y=x^2
I know that x= /+ sqrt(y)
but I don`t understand why I do this every time I try to solve "y=x^2" for "x"....

May1609 12:03 AM
wajed

7 
1,456 
I am learning how to prove conditional identities like
(a^2c^2+b^2+2ab)/(c^2a^2+b^2+2bc) = (sc)(sa)
if a+b+c...

May1509 11:14 PM
qntty

6 
3,981 
http://upload.wikimedia.org/math/d/c/4/dc4d000103c1293c5cde00fac04850d6.png
Is this true:
...

May1509 05:57 PM
Tibarn

11 
1,228 
Hi guys, im currently undergoing my final year engineering project, so im implementing color sensor and im running...

May1509 12:07 PM
thavamaran

0 
615 
for example:
f(x) = x^(x^x)
Firstly, is there already an inverse of this function that can be expressed in...

May1409 04:11 PM
Georgepowell

3 
892 
Is there any trigonometric function f(theta) where theta is an angle such that
f(Pitheta)=f(theta) and such that...

May1409 02:55 PM
AUMathTutor

7 
6,497 
From a paper I've been reading:
I wanted to know how to interpret the notation. What does it mean to take the...

May1409 10:30 AM
CRGreathouse

4 
2,895 
hi there,
im a german student and ive come across a phrase that is:
(2) and (5) are binding in equilibrium, and (3)...

May1409 07:29 AM
tinytim

1 
988 
I've run into these formulas many times but I've never seen how they were derived.
Say you want to fit a line to...

May1409 07:25 AM
Borek

5 
899 
How do you show that there is always a straight line bisecting a finite set of points on a plane?

May1309 11:53 PM
maze

8 
1,370 
use the stokes theorem to evaluate the surface integral where
F=(x^2+y^2; x; 2xyz)
and S is an open surface...

May1309 08:25 PM
dx

1 
832 
Suppose you have a matrix A:
\left(
\begin{array}{ccc}
a_{1,1} & a_{1,2} & a_{1,3} \\
a_{2,1} & a_{2,2} &...

May1309 04:38 PM
matt grime

5 
989 
Use the divergence theorem to compute the surface integral F dot dS , where
F=(xy^2, 2y^2, xy^3) over closed...

May1309 12:53 PM
HallsofIvy

1 
683 
Hi,
I'm trying to learn Mathematica.
Is it possible to open a second notebook in Mathematica, but without...

May1309 12:45 PM
squidsoft

1 
1,386 
I would like an example in Latex of a product with indices n=1 to N for bN, all minus 1, finally equal to bZ. I have...

May1309 11:54 AM
Loren Booda

2 
877 
Is it possible to draw a perfect circle. My answer wold be no, because the perimeter of the circle should be a...

May1209 09:31 PM
Integral

7 
7,593 
This is causing me a bigger headache than I anticipated.
Basically, given an integer N and a number M, I need a...

May1209 04:47 PM
rsq_a

7 
1,403 
Hi,
I use the \frac{b \ \pm \ \sqrt{b^2  4ac}}{2a} formula to factoring the quadratic equation. Can anyone tell...

May1209 11:01 AM
epenguin

2 
1,464 
I've read through a lot of different threads on the topic of prerequisite knowledge required to take a course in...

May1109 04:01 PM
billyx3

0 
620 
I am still a little early in my math education but we were talking about this the other day.
Mine is the right angle...

May1109 03:06 PM
AUMathTutor

15 
1,541 
Hello,
I know normally giving solutions is frowned upon, but I have lost my colleagues data sheets and desperately...

May1109 02:25 PM
jweygna1

3 
1,237 
Hi all,
I want to implement diffraction of waves by edges. I have a wedge with 2 faces oface and nface. I have...

May1109 09:19 AM
whitenight541

3 
3,837 
Hi all,
I like working with computer graphics so I often work between 2D and 3D computer simulations.
For...

May1109 07:54 AM
KLoux

3 
1,765 
What is the average number of intersections for two infinite curves confined to a plane?

May1009 11:41 AM
Loren Booda

13 
1,595 
Guys..I need some help...Doea anyone know of a way to diagonalise a tridiagonal Symmetric matrix OR obtain the...

May1009 07:58 AM
Physicslad78

0 
1,456 
This problem had arose in a question I was trying to answer in which I could take two approaches to solve it, but one...

May1009 02:05 AM
deferro

16 
1,708 
Are there any free, online Math Olympiad resources for studying? These are the high school level math competitions....

May909 11:40 PM
qntty

2 
1,480 
What are complexity classes (P, NP, etc) in terms of pure sets? ZFC, I mean.

May909 12:07 PM
Dragonfall

6 
891 
sorry about the mistake in my last post. I miswrote the bottom vertex of the equilateral triangle.
Let me restate...

May909 02:21 AM
Russell Berty

1 
934 
1. A fire in a building B is reported on telephone to two fire stations P and Q , 20 km apart from each other on a...

May809 07:59 AM
al2521300

3 
1,327 
"In the first place, let me say that delta depends upon epsilon and not the other way round as you have stated. We...

May809 06:39 AM
HallsofIvy

12 
1,371 
In George Gamow's book "One Two Three Infinity" he explains on page 56 how to turn a "double apple" with a free...

May709 10:20 PM
slider142

1 
760 