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

Feb2313 09:23 AM
micromass

1 
38,217 
I am a sophomore in high school and have heard about how great and majestic math is, so I decided to get a piece of...

Dec1713 06:48 PM
Stephen Tashi

1 
635 
Hello
I have N couples of real numbers higher than 1.
Let's call them like (a0,b0), (a1,b1),...,(aN,bN)
I have a...

Dec1713 01:24 AM
Wentu

2 
660 
Is it possible to do a binomial expansion of (x+y)^{1/2}? I tried to compute it with the factorial expression for the...

Dec1613 12:19 PM
TheoMcCloskey

4 
832 
When i is defined by an equation which has 2 solutions, how does it make sense to do algebra with complex numbers?

Dec1613 12:08 PM
Mark44

44 
2,389 
Interesting take on solving the Squaring the Circle problem enshrined in law:
...

Dec1613 03:04 AM
Edgardo

6 
832 
Can anyone please give a succinct and clear description on this? I'm a little confused...

Dec1513 07:22 PM
1MileCrash

4 
638 
Dear All,
I would like to do an exponential function leastsquares fitting, but having two or more exponents. For...

Dec1513 03:36 PM
AlephZero

10 
802 
We all know about the sum of the infinite series,
1 + 1/1! + 1/2! + 1/3! + ... to 1/inf! = e
What other series...

Dec1413 03:10 PM
mesa

14 
1,042 
Given
x = \left\{\begin{matrix} y \;\;\; case\;A\\ z \;\;\; case\;B\\ \end{matrix}\right.
So, operate x means to...

Dec1413 04:02 AM
Jhenrique

8 
741 
The real projective line states that there is not difference between positive and negative infinity (maybe except the...

Dec1313 08:59 PM
japplepie

3 
564 
hey guys this day my friend showed me a falacy that stunned my mind, it was like this:
let's say we add powers of 2...

Dec1213 08:22 PM
lostcauses10x

18 
1,293 
So if you are putting horse shoes on a horse it takes 32 nails. Imagine telling the horse owner you will do the first...

Dec1213 10:37 AM
cpscdave

3 
562 
Hello
I have the following combinatoric problem :
I want to distribute n (equivalent) atoms among M distinct...

Dec1213 08:46 AM
Shyan

3 
629 
I have a program that generates a bunch of power curve functions and would like to know what the 'average' function...

Dec1113 06:25 PM
Labyrinth

6 
646 
Hello all,
What is the result of this (linear) convolution:
s(t)\star\delta(\tau\tau_p)
where s(t) is a...

Dec1113 03:27 PM
cpscdave

3 
640 
Hello all
I am hoping someone could help shed some light on a surveying problem I am having.
The problem is...

Dec1113 12:55 PM
cpscdave

2 
616 
Helow!!
For a long time I aks me if exist differentiation/integration with respect to vector and I think that today...

Dec1113 06:29 AM
Simon Bridge

1 
542 
How would I go about solving an Nth degree polynomial function such that N>=5?
Ax^{n}+Bx^{n1}+.........+Z = 0

Dec1013 12:36 PM
Office_Shredder

11 
836 
Given a hyperbola of the form:
r=\frac{A}{1+Bsinθ+Dcosθ}
what are the polar equations for the asymptotes?

Dec913 06:32 PM
Office_Shredder

3 
587 
Hi everyone
I was hoping someone could help with a problem I’m having.
I am often given large amounts of X & Y...

Dec913 12:32 PM
Office_Shredder

4 
649 
So, I've obtained a graph of lab data an it's a plot of thermal resistance versus pressure. Pressure on the x and...

Dec813 02:04 PM
nmf77

3 
518 
Hello all!
New to the forums, and I have a question for you. In my classes, we have been dealing a lot with proofs...

Dec713 03:39 PM
AlephZero

2 
1,221 
f(x) is a reflection over the y axis
f(x) is a reflection over the x axis
Now, how do we represent a reflection...

Dec713 11:22 AM
hb20007

8 
764 
I'm trying to find the equation of a general ellipse given 3 points. Two of those points should be at each end of one...

Dec713 01:07 AM
Simon Bridge

5 
662 
Hey, I wanted to know if anyone knew of any good books for self teaching Algebra. I am currently using Khan academy...

Dec513 11:24 PM
Abscissas

4 
798 
So as I'm preparing for finals, I'm wondering:
The multiplication of two matrices is only defined under special...

Dec513 02:23 PM
1MileCrash

3 
605 
Hi guys,
I am doing some research into McDonalds and it's international businesses. It's a small study for people...

Dec513 01:58 PM
viciam

8 
782 
Hi,
I can't come up with a general forumla for x in this equation. Any advice ?
x = y sin(x)

Dec513 11:28 AM
economicsnerd

4 
712 
I've found a formula for the area of a regular hexagon,but it seems to falter when i try to finds its area using the...

Dec513 10:59 AM
jbriggs444

8 
763 
Context: https://www.youtube.com/watch?v=sQM8Oj4Ecg
In the video, he divides out a variable as below:...

Dec413 05:28 PM
Jarfi

6 
714 
Not homework just my own revision.
If sin a = –cos b = 3/5 and a and b are both in the second quadrant, what is cos...

Dec413 03:54 PM
Gurdian

2 
466 
When is it appropriate to use \equiv as opposed to =?

Dec413 10:58 AM
Darth Frodo

3 
419 
Dear!
Is possible to solution a polynomial of kind y = Ax^a + Bx^b ?
Thx!

Dec413 03:58 AM
jackmell

11 
921 
Hellow!
I'w like to divulgate this material that I searched...
It's nice calculator (is possible to make...

Dec313 09:29 PM
berkeman

2 
578 
I know that the plane ##z=4y## is even with respect to the xaxis and is not even with respect to the yaxis and...

Dec313 06:21 PM
Mark44

4 
629 
Hi! Which is the better method for finding fourier expansions of a function? The ordinary one (find a_0, b_n and a_n...

Dec213 03:10 PM
jbunniii

1 
586 
If yes, then for what values of n?

Dec113 07:08 PM
gikiian

3 
507 
Hi, I'm learning vectors and there's two notions which I don't distinguish :
Is the orientation of a vector...

Dec113 03:01 PM
SteamKing

3 
459 
Hey,
Once again, I got a question about quaternions.
Say I have an initial rotation Q1. I now want to rotate Q1...

Dec113 01:54 PM
nmf77

1 
548 
Hi everybody,
I am having some difficulties graphing this decaying trig function:
...

Dec113 01:28 PM
Bill Simpson

5 
595 