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

Feb2313 09:23 AM
micromass

1 
39,229 
Hey,
I'm trying to learn how to use LaTeX and while I think it's easy how to form equations and symbols, the thing...

Sep2205 03:51 PM
tomfitzyuk

2 
9,484 
This question goes:
a, b and c are positive integrers.
What is the sum of all possible values of a and b between...

Sep2205 11:26 AM
Werg22

3 
982 
http://www.mste.uiuc.edu/users/exner/ncsa/quad/
There's another way of writing the quadratic formula...but how do...

Sep2205 09:39 AM
arildno

4 
3,480 
In general (not specifically for forums), what are the different math typesettings? I know there is LaTeX, but I have...

Sep2205 08:16 AM
amcavoy

10 
10,260 
Do you know about fivepoint Laplace operator in numerical calculation? Could you explain for me about this operator,...

Sep2205 06:00 AM
chethapcamhnvn

0 
1,467 
I was just wondering if any one has ever tried to make a new fundamental system for solving problems, ranging from...

Sep2205 05:29 AM
peterbone

2 
1,158 
Hey, its bin ages since i did any maths, and gotten a little rusty, am i doing this right when solving these...

Sep2105 05:58 PM
jnahey

8 
1,249 
has anyone implemented Nick Pears' ground plane segmentation for
mobile robot before?
this is the link to the pdf...

Sep2105 07:05 AM
orochimaru

0 
1,744 
I am having problems to prove this: Show that a graph G remains connected even after deleting an arc (i,j) iff arc...

Sep2105 03:05 AM
matt grime

5 
1,544 
I have been researching the bible code theory, and I have a few problems with it.
(btw, and ELS value is how many...

Sep2005 07:59 PM
StonedPanda

15 
1,862 
I wasn't sure what category to put this in, but here's my problem.
There is a parallelogram with 3 given points for...

Sep2005 04:09 PM
mathman

4 
10,403 
Prove that of 25 is subtrated from the square of an odd integer greater than 5, the resulting number is always...

Sep2005 04:04 PM
Werg22

14 
1,358 
This journal will be the journal that follows through my progress in school. I have some big goals this year, and I...

Sep2005 01:05 PM
JasonRox

14 
2,583 
i need to prove that the sequence is increasing, i.e, x_n+1>=x_n
which translates into:
^(n+1)>=^n
i tried...

Sep2005 06:57 AM
MathematicalPhysicist

8 
1,953 
I am trying to figure out an overall reaction constant, but I am getting stuck on the math behind the problem. I am...

Sep1905 11:06 PM
scrappychic

6 
1,145 
In this textbook i am looking at it says:
"Thus e^y + e^y =2x or
e^2y  2xe^y + 1 = 0"
how did they go from...

Sep1905 09:58 PM
Hurkyl

5 
911 
I've currently enrolled in Calculus II and have been thinking lately how far does the most complex presentday math...

Sep1905 08:25 PM
mathwonk

10 
2,201 
Is this true?
f(x)=sin(x)=x(x2pi)(x4pi)(x6pi)...
edit:
f(x)=sin(x)=x(xpi)(x2pi)(x3pi)(x4pi)...

Sep1905 05:36 PM
shmoe

8 
881 
Mixture problem example: You need parts of a 30% chlorine and 55% chlorine mixture to make 100 gallons of a 40%...

Sep1905 04:09 PM
Werg22

1 
3,902 
From the Not Even Wrong blog,
http://www.yaledailynews.com/article.asp?AID=29843...

Sep1905 03:44 PM
robphy

0 
1,748 
Actually this might not be a fourier question, but it certainly reminds of Fourier series.
Suppose,
...

Sep1905 03:23 PM
ghotra

2 
1,013 
Hi,
can anyone enlighten me on kalman filter? the maths is overwhelming for me.
Thanks in advance!

Sep1905 10:15 AM
SGT

7 
12,996 
I have a geometry problem. There is a set of spheres (each has a 3d center coordinate and a radius) and I need to find...

Sep1905 08:53 AM
peterbone

0 
1,527 
Hello
I have this question that I am not sure what to do.
Can somebody please give me a hint or point me in...

Sep1905 12:03 AM
Tide

1 
758 
hi,
i have trouble understanding these two terms.
can anyone explain to me eigenvalues and eigenvectors in laymen...

Sep1805 06:12 PM
HallsofIvy

2 
2,163 
does anyone know what they include?
here is a prefrence.
thanks

Sep1805 11:21 AM
LeonhardEuler

7 
2,006 
Hi Guys!
well can anyone recomend me websites where i can get some knowledge and techniques to deal with complex...

Sep1805 11:03 AM
ComputerGeek

1 
975 
I haven't been here for a long time, so sorry if this was already posted:
http://physorg.com/news6555.html
Dr...

Sep1705 04:04 PM
Pythagorean

2 
1,726 
My question is simple,
What is INFINITY?
How big or small is it?
What does one mean when he/she says that...

Sep1705 10:32 AM
Hurkyl

5 
1,015 
just starting up the school year again and my brain is not there yet.
Is e^x an even or odd function.
also what...

Sep1605 06:08 PM
shmoe

5 
904 
no clue how to start this:
show
sin 3x = 3 sin x  4 sin^3 x

Sep1605 04:21 PM
thenewbosco

4 
5,068 
This is a formula to find the area of a regular polygon with sides of equal length only using the side length.
...

Sep1605 03:44 PM
Dr Avalanchez

7 
1,247 
n_1 = 1
a_1 = 1
n_i = i
a_i = 8 a_{i1} + 1
Is it possible to show that a_i  n_i is a multiple of 7 for...

Sep1605 02:49 PM
LeonhardEuler

6 
1,105 
I wasn't sure of where this question is best suited but since my interest is only mathematical I figured this is a...

Sep1605 01:44 PM
Fermat

1 
764 
Is there any reliable way to convert a series to a product, or the opposite? I was looking at the following and...

Sep1605 12:45 PM
shmoe

3 
12,564 
http://www.physorg.com/news6555.html

Sep1605 12:29 PM
Zurtex

1 
1,187 
I'm back studying after a couple of years out and have become a little rusty. currently learning about the J...

Sep1605 12:16 PM
Tom Mattson

4 
1,798 
I'm sure this is relatively easy, but after an hour or so googling, I can't seem to find the formula for generating...

Sep1605 04:29 AM
ktoz

1 
1,647 
confused as heck :bugeye: !:
montly rates of return on the share of a stock are independent of one another and...

Sep1605 02:52 AM
mouse

0 
724 
I've been away for quite a while, and now I can't find the book forum. :confused:
Anyway, I'm looking for a book...

Sep1505 11:41 PM
fourier jr

1 
1,454 