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

Feb2313 09:23 AM
micromass

1 
33,163 
I have bumped into some matchingtype problems that seem to require some coding, unless someone can point out existing...

Aug1611 05:57 PM
FaustoMorales

0 
743 
Some papers in analytic number theory used the notation A\ll_{\epsilon}B where \epsilon seems to be a positive...

Aug1611 12:12 PM
bpet

0 
887 
I am a mechanical engineer who hasn't done any mechanical engineering for close to 20 years & hence forgotten all...

Aug1611 12:07 AM
phiby

2 
1,087 
Hello, I am a recently graduated high school senior going off to college soon, and over the summer I have spend some...

Aug1511 08:23 PM
daveyp225

7 
1,696 
I don't know a method to get the range of any function without the graph. But all I can say that for some functions I...

Aug1511 04:03 PM
JonF

3 
2,526 
Let F be a force vector and a an acceleration vector.
A vector v(x,y,z) in 3 dimensional space xyz is the set of ...

Aug1511 03:54 PM
Fredrik

10 
1,950 
Today I read about the AKS  Primality test in which the simple theorem
For gcd(a, n) = 1, we have
(X  a)^n\equiv...

Aug1511 02:08 PM
Yuqing

0 
1,042 
Hi,
I'm trying to simplify the following equation, but I'm not sure it can be! Can anybody help me please?
...

Aug1511 01:51 PM
I like Serena

3 
939 
This thread has 2 parts.
The first part consists of a problem I'm going to ask brains more intelligent than mine to...

Aug1511 12:13 AM
Bill Simpson

5 
1,220 
Hi Everyone,
I am looking for some help on this question
In Triangle EFG find the value of f, if e=7.3cm g=8.7cm...

Aug1411 09:30 PM
dalcde

1 
1,140 
Hello
What follows is one way of calculating the square root of 2, as Wikipedia shows:
I built the following...

Aug1411 06:54 PM
agentredlum

12 
1,433 
The following matrix problem occurred to me. I figured out the answer and would like to pose the problem. It's easy...

Aug1411 08:27 AM
AlephZero

4 
1,330 
In general, if α(alpha) and ß (beta) are roots of eqn. ax^2 +bx +c=0
then for finding the equation whose roots are...

Aug1411 07:56 AM
Sumedh

2 
896 
In elementary school or high school, we often use stuff that has never actually been proven (in that class). For...

Aug1411 03:16 AM
DarkDrag0nite

86 
8,131 
According to Wolfram Alpha, if sin x =cosh x then x=(\frac{3\pi}{4}+\frac{3i\pi}{4})
But how do you derive this?
...

Aug1311 10:24 PM
dimension10

12 
2,743 
Each generation of mathematics (dunno how long a generation is) have great mathematicians. Last generation was...

Aug1311 02:46 PM
saim_

2 
1,009 
Hi all,
I have a question regarding leastsquares, and I'm certain I can't be the first one to encounter it, but...

Aug1311 12:16 PM
Stephen Tashi

3 
1,993 
Hello,
Does anyone know if the pseudo code listed here
...

Aug1211 11:53 PM
Replogle

0 
1,704 
Hi guys, it's 3 AM so don't judge me. I'm doing some accounting work with my student loans and I want you to confirm...

Aug1211 07:56 AM
HallsofIvy

1 
1,085 
Hi,
If we have a random variable in the form:
...

Aug1111 10:17 PM
S_David

0 
762 
I'm applying for a tutoring position at my school. I already passed the preinterview and took the test (basic...

Aug1111 05:14 PM
Dickfore

16 
2,071 
Hello,
I want to calculate the conditioning of a matrix, therefore I use the cond() commando in Matlab. A problem...

Aug1111 12:32 PM
uart

2 
2,771 
I study nanoparticles. Basically, they are prepared by being "etched away" from larger chunks of material. I need to...

Aug1111 08:26 AM
katkak

4 
1,183 
I want to learn better mathematic olympiad(I am Grade 10), but I don't know how to start. So I hope someone could give...

Aug1111 05:58 AM
henry407

0 
614 
Hi all,
I have a question and hope to solve.
problem terms :
1 there are K holes.
2 there are N group of Pigeon....

Aug1111 02:21 AM
JaneGardner

7 
2,332 
Hi everybody, im new here and like physics very much
I came across a post here about the proof for:...

Aug1011 11:47 AM
johnsmi

9 
10,001 
Hi everyone,
Can someone please tell me is there any mathematical equation/formula on ploting a curve with given...

Aug1011 08:42 AM
mikeph

7 
4,953 
Source: http://en.wikipedia.org/wiki/Ternary_numeral_system
The last sentence in the quote from the Wikipedia has...

Aug1011 05:51 AM
daveyp225

5 
1,854 
Hi,
I have a line L stretching from point A to ponit B. The startpoint A has the coordinates x1, y1 and endpoint B...

Aug1011 05:44 AM
daveyp225

1 
2,657 
Hi,
what are some good textbooks dedicated to this subject? I have a short time to learn everything about this...

Aug1011 01:46 AM
JJacquelin

4 
1,067 
Supposedly this proof answers my question.
8 / 16 = .5
8 / 8 = 1
8 / 4 = 2
8 / 2 = 4
8 / 1 = 8
8 / .5 = 16
8...

Aug1011 01:37 AM
jimgavagan

2 
1,752 
I need a simple methods to numerical differentiation.
I'm currently working on an image processing to detect edges....

Aug1011 01:30 AM
sagar474

0 
714 
What is division? 12 ones split up into 3 things is 4 ones (per thing.) 1 one split up into 100 things is 1/100 ones...

Aug1011 12:24 AM
jimgavagan

6 
2,190 
A natural integer N can be written as x mod p, for instance:
N... 1 2 3 4 5 6 7 8 9 10 11 12
p=2 1 2 1 2 1 2 1 2...

Aug911 11:49 PM
bpet

1 
968 
Hi guys. I'm a highschool dropout. I went back and got a General Education Development degree. I'm also doing grade...

Aug911 11:43 PM
onnyctip

2 
1,076 
I've always been a creative person since I was little.
I really wasn't noticed for my potential for maths at all...

Aug911 10:44 PM
Dr. Seafood

1 
791 
For example, I just heard that ATMs are possible thanks to the development of elliptic curve theory. Also that...

Aug911 09:19 PM
DaveC426913

5 
4,239 
For me it would have to be the set of complex numbers. What's yours?

Aug911 08:24 PM
disregardthat

34 
3,565 
Hi,
I don't know about other people here but I work best when I have something to hold me to what I was trying to...

Aug911 06:25 PM
mrwalle

13 
1,681 
Hi there! I have been reading Apostol's "Calculus: Volume 1" and have been trying to prove a few theorems using...

Aug911 12:53 PM
galois26

8 
1,822 