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

Feb2313 09:23 AM
micromass

1 
33,138 
I’m taking college level math, and I’m worried about my progress. I took my first test in that class last week, and I...

Jun810 07:39 AM
Fredrik

7 
1,122 
I ordered the Intermediate Algebra and Precalculus books for my precal class (half of which is covered in each).
...

Jun710 10:35 PM
RPicard

3 
1,108 
No, I don't mean the axioms. I need a list of important properties that can be derived from the axioms, like 0x=0, or...

Jun710 08:46 PM
Fredrik

0 
1,122 
I'm revising complex numbers and having trouble with this question...
Question:
Verify that 2 of the roots of...

Jun710 04:35 PM
mathman

3 
1,506 
Can anybody tell me why
\sum_{j=1}^p x_jy_j \leq \left( \sum_{j=1}^p 1\right)^{1/2} \left( \sum_{j=1}^p...

Jun710 03:38 PM
nonequilibrium

4 
971 
Hi all
I have a question concerning Euler's triangle formula, where the distance (d) between the incenter and...

Jun710 02:27 PM
mathius1

2 
1,547 
If I have
\int_0^{+\infty}h(x)g(x)dx=0
where h(x)>0 in . Can I conclude that g(x) might be zero or an odd...

Jun710 01:23 PM
Mark44

7 
1,084 
Is the problem with dividing by zero recognizing different infinities?
to me 1/0 is clearily a infinitely large...

Jun710 01:19 PM
Mark44

8 
1,244 
Hi,
I am trying to simplify this equation and it won't work using this method, although i can do it using another...

Jun710 11:32 AM
ojsimon

2 
719 
hI,
Refering to the attachment, we have set of points A,B,C,D which intersects at a point (Refer Figure)
I have...

Jun710 10:47 AM
Mark44

1 
700 
Ok so I'm tutoring for a class this term which is supposed to be an intro to mathematical proofs. One kid asked me how...

Jun710 09:12 AM
TacTics

2 
904 
Hi all,
I have been trying to write code to convert from cartesian to fractional coordinates. I think everything is...

Jun710 12:44 AM
pushkalcodes

2 
5,915 
Although I have completed my high school and I will be going to college, there is one thing that i really regret about...

Jun610 07:48 PM
Redbelly98

5 
1,308 
What are practical applications of the gamma function?

Jun610 11:40 AM
Gib Z

1 
888 
The most dreaded words in a mathmatical text. This usually translates into some time banging your head against a wall....

Jun610 11:26 AM
daviddoria

3 
779 
Hi all,
My goal is to go to graduate school for mathematics (most likely enumerative combinatorics of graph...

Jun610 06:41 AM
rasmhop

4 
1,027 
Hello, it is mentioned here that using the tangent halfangle formulas it is possible to express the function atan2...

Jun610 03:38 AM
mnb96

2 
3,401 
Here is a problem that I found in a library book.
In Canada, 38% of all students have an iPod. What is the...

Jun510 12:06 PM
uart

3 
934 
Hi i'm beginning to take physics a little more serious than ever and starting with maths. just want to know if there...

Jun510 01:16 AM
UndeniablyRex

1 
1,257 
Hi,
Assume that I have f(u,v,w,h) du dv dw dh and I need only to change three variables (u, v, w) say to other...

Jun410 10:24 PM
femas

2 
1,086 
Hi!
I took the MCATs and I can remember one question was about number series stating:
5,3,8,8,11,13, ?
Whats the...

Jun410 10:05 PM
luckyjack

2 
801 
Hello Everyone,
I need to find school that offered VECTOR CALCULUS and MATRIX AND POWER SERIES METHODS ONLINE...

Jun410 09:46 PM
KingOfHats

0 
551 
What is your favorite mathematical equation/value of all time? Mine is e^{i\pi}, which equals 1.

Jun410 08:43 PM
skycastlefish

28 
3,565 
Hi, I'm currently studying in high school. What I often find are complicated math unsolved problems which require...

Jun410 06:15 PM
Tommo1

10 
6,331 
If one were to do a bottom up study of math how would it go?
Set theory
.
.
.
?
Is set theory the most...

Jun410 12:47 PM
Werg22

8 
4,584 
This is a spawn from the suggestion forum where I suggested we start a Financial Math/engineering subforum in the...

Jun410 11:01 AM
beckman55

7 
13,045 
In the image
http://img411.imageshack.us/img411/6857/circle.png
If given the diameter of the circle, as well as...

Jun410 07:38 AM
luma

9 
1,122 
hi
i want to find values of a,b,c such that..
Minimize (a+b+c)
constrained to
(xa)^2 + (yb)^2 +...

Jun410 06:59 AM
vaibhavphalak

1 
1,827 
He defines \xi(s)=s\frac{s1}{2}\pi^{s/2}\Gamma(s/2)\zeta(s).
I understand that \pi^{s/2}\Gamma(s/2)\zeta(s)...

Jun410 04:12 AM
Charles49

0 
888 
Dear all,
is there a way to do that near a point?
Also, for a given ODE or even PDE, is there a criterion to...

Jun310 02:19 PM
zeebek

2 
792 
Hi colleages. can you help me to solve the cubic equation below:
2N(EpEn)hp^3(x)3hp^2(x)6Enhhp(x)+Enh^2=0 ...

Jun310 01:20 PM
Mark44

3 
917 
I need help gettin from
(n1)((1/r1^3)(1/r2^3))(y^4/8) = (y^4/32f^3)
r1 and r2 have the 1 and 2 and subscript...

Jun310 09:22 AM
Mark44

1 
1,148 
So i am ttying to calculate a velocity in this problem i dreamt up. Only problem i cant get a computer to solve it. So...

Jun310 08:44 AM
uart

5 
781 
hi guys,
can someone give me a quick tutorial on how to solve and explain to me the concept of slope field of the...

Jun210 09:21 PM
HallsofIvy

1 
1,706 
Hi, can anyone tell me how to add a text line in the numerical solver calculation screen that describes a variable in...

Jun210 03:51 PM
litup

1 
1,007 
1 = 1
\Rightarrow \frac{1}{1}=\frac{1}{1}
\Rightarrow \sqrt{\frac{1}{1}}=\sqrt{\frac{1}{1}}
\Rightarrow...

Jun210 03:28 PM
Martin Rattigan

9 
1,367 
What's the cardinality of \mathbb{R}^{\mathbb{N}}?
It must be \mathbb{R} or \{0,1\}^{\mathbb{R}}, but I'm not sure...

Jun210 01:53 PM
Hurkyl

1 
2,147 
A question at the end of a chapter in a book I'm reading asked me to prove something which I'm thinking is a mistake...

Jun210 10:39 AM
uart

13 
2,329 
I'm a college student needing to take calculus 2 this fall. However, I have not taken calc 1, so since I'm good at...

Jun210 10:30 AM
Char. Limit

3 
3,783 
Hello, I was wondering how to proof a_n = n^{1/n} \to 1.
Doing it straight from the definition got me nowhere. But...

Jun210 10:29 AM
nonequilibrium

7 
1,754 