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

Feb2313 09:23 AM
micromass

1 
37,896 
I don't really understand how to multiply and divide when numbers are in a+bi form

Oct2611 10:22 PM
fleazo

2 
1,202 
I'm in 3rd year math, and out of the 11 courses i'm taking this year, 2 are computationally based (Calc III and Calc...

Oct2611 08:20 PM
fleazo

3 
1,043 
Any information on the following formula for natural logarithm (I looked in wikipedia and Mathworld but didn't see...

Oct2611 03:07 PM
Matt Benesi

2 
885 
Hello everyone!
I got into a debate with a friend about a month back and this question has been racing through my...

Oct2611 01:30 PM
ViolentCorpse

16 
2,991 
Hi everyone.
I would like to get some advice I guess in learning strategies for math. Here is my scenario..
I...

Oct2611 01:01 PM
Square1

3 
1,706 
It looks like an F, but it also has an e
http://img98.imageshack.us/img98/2161/unledbto.jpg
It means like...

Oct2611 01:38 AM
I like Serena

28 
1,945 
I've been trying to learn some maths by myself. A book I found starts with a section on limits. I feel that I have a...

Oct2611 12:08 AM
hamsterman

2 
1,173 
The very first time I ever heard about fractals was in my junior year in high school in my Algebra II class when we...

Oct2611 12:01 AM
TGlad

3 
1,687 
What are some methods for studying textbooks like Euclid's Elements where there aren't a set of problems in each...

Oct2511 10:54 PM
indialpc

13 
16,236 
Nothing much, I have this:...

Oct2511 03:55 PM
mathman

1 
1,560 
Hi guys,
I had been wondering for a while why it is that we use the radian as the unit of angular measurement in...

Oct2511 03:08 PM
phinds

7 
1,670 
If you have a polynomial like (1+x)^6 = x^6+6 x^5+15 x^4+20 x^3+15 x^2+6 x+1, What function would you use to pick only...

Oct2511 12:21 PM
Dr. Seafood

6 
991 
If you add, subtract, multiply, or divide things you will end up with a sum, difference, product, or quotient.
What...

Oct2511 10:05 AM
logics

7 
2,121 
This video clip will give us a whole new perspective on our ideas of dimension and symmetry as it demonstrates the...

Oct2511 07:30 AM
Pattrix

0 
679 
As the title says I'm looking for reading suggestions for complex analysis. I'm a novice at the subject and looking to...

Oct2511 06:31 AM
lurflurf

2 
822 
I was wondering, what would be the solution for \lim_{x \rightarrow \infty} W(x) where W(x) is the LambertW...

Oct2411 08:12 PM
dimension10

2 
1,451 
I'm curious as to why the following theorem always works with a graph of vertices and the number of steps between the...

Oct2411 07:48 PM
physicsguy101

2 
1,721 
Hi people, as you can see i am new in this forum.
Sorry if i am posting in wrong section.
Im going to try to...

Oct2411 06:43 PM
HallsofIvy

3 
677 
I am learning about solving simultaneous equations with matrices but they make less sense to me and take more time...

Oct2411 06:26 PM
HallsofIvy

7 
2,221 
where do a cubic and a circle intersect? y=x^3, x^2+y^2=9? Descartes' rule of signs and rational zero theorem at...

Oct2411 05:40 PM
Number Nine

5 
1,609 
Let's say I'm trying to find the oblique asymptote of the function:
f(x)=
3x2 + 2
x1
Forgive...

Oct2411 04:58 PM
LaMantequilla

2 
3,581 
Yes, I have zero dollars and zero time.
When one budgets, one divides money by time.
Therefor, now that I have...

Oct2411 02:32 PM
BadBrain

0 
749 
I was wondering about the idea of representing real numbers as points on line , What is the basis of this assumptions...

Oct2411 02:10 PM
SteveL27

6 
831 
A(2,1) b(8,1) C(4,3) D(6,6)
let these be 4 points(vertices) of a quadrilateral
so i calculated it out as
2 ...

Oct2411 01:19 PM
willem2

1 
1,140 
Here i am asking all the things about parabola. I think something is wrong with proof where we prove condition of...

Oct2411 08:56 AM
HallsofIvy

3 
1,166 
I need to find the absolute value of b(t):
b(t)=a(t)
Here is the answer in the textbook:
\therefore \left ...

Oct2411 06:52 AM
frenzal_dude

5 
1,443 
In another thread, I was shot down for saying that a number was a representation of a value. I was told that the...

Oct2311 05:21 PM
Thetes

33 
3,275 
I don't get it...
What are you supposed to do?
Right answers apparently are 2 and 3.

Oct2311 02:19 PM
gsal

3 
3,070 
Hi I have a question on probability which I am not sure of.
If you have a coin and flip it 20 times then of...

Oct2311 12:30 PM
martix

3 
1,014 
Hello guys,
I'm writing a C++ function for matrix inversion. I saw many algorithms online, but I'm concerned about...

Oct2311 10:55 AM
TheDestroyer

7 
2,544 
I haven't been able to figure this out but I am sure it's very simple but I can't understand how to do it.
If you...

Oct2311 07:02 AM
ISX

4 
1,486 
I was told that the limit of e^iwt as t> infinity is 1 or is at least modelled as 1. Can anyone tell me why this is?...

Oct2211 05:01 PM
schtruklyn

4 
7,996 
ans the question

Oct2211 10:11 AM
HallsofIvy

2 
624 
Hi,
I have a question regarding partial fractions. One of my Math lecturers said that to find partial fraction, we...

Oct2211 07:20 AM
HallsofIvy

1 
1,156 
I can not find any useful online tool that solves you a system of equations using Gaussian elimination and LU...

Oct2111 05:55 PM
XodoX

4 
3,447 
Hey all,
BACKGROUND: (please note that knowledge of this is not necessary):
I'm currently writing a javascript...

Oct2111 04:31 PM
zgozvrm

5 
1,691 
I am currently trying to solve for the metric function for a black hole in adS space with quasitopological gravity....

Oct2111 04:14 PM
mathman

1 
1,952 
I finished exploring a family of functions
fk(x) = {xksin(1/x) for x≠0
{0 ...

Oct2111 02:07 PM
SithsNGiggles

2 
768 
\int^{\pi}_{0} f(x) dx where ,
f(x) = sin x if 0 \leq x < \frac{\pi}{2}
and f(x) = cos(x) if...

Oct2111 10:46 AM
mahmoud2011

7 
1,546 
hello friends .
i need to your help please.i am a hight school student.and i want participat in the international...

Oct2111 01:10 AM
yasminemath

3 
792 