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

Feb2313 09:24 AM
micromass

1 
45,442 
i don't understand how to figure this problem out, and i really need the help.
A kite is flying Y feet about the...

Nov2005 03:20 PM
Pseudo Statistic

2 
1,242 
I was wondering if any one could double check my work to see if the following method is correct. I will also check it...

Nov1905 02:58 PM
Edwin

0 
2,310 
My friend told me that they had just learned an equation to find the length of a function. I decided that it would be...

Nov1905 12:40 PM
TD

4 
11,812 
How would you solve the following system of simultaneous equations for t and b?
sin(pi*t) = 0
sin(pi*(t^2 +...

Nov1705 08:59 PM
Edwin

6 
1,390 
Count the number of integer solutions of (rather, # of integer lattice points such that)
n+\sum_{k=1}^{n} \left...

Nov1705 05:44 PM
AKG

1 
4,850 
Hi,
Is there a general extrapolation formula (or other *simple* quantitative technique) for projecting values in a...

Nov1705 03:47 PM
mathman

2 
3,515 
Hi,
it is probably a simple question, but it bothers me for quite some time.
How can I calculate time that ball...

Nov1705 07:45 AM
benorin

4 
1,197 
How was the irrational number pi invented or how did man reach upon it? I have studied elementary calculus to...

Nov1605 07:15 PM
vaishakh

18 
6,274 
Can someone give me an example of a function that is continuous everywhere yet differentiable nowhere?

Nov1605 10:12 AM
HallsofIvy

16 
2,136 
Let f:I>R and let c in I. I want to negate the statements: "f has limit L at c" and "f is continuous at c". Are these...

Nov1605 10:12 AM
Treadstone 71

2 
1,135 
Here are two cool functions defined by power series:
...

Nov1505 07:58 PM
benorin

4 
1,806 
I saw the other thread, but figured this question was sufficiently distinct to warrent a new thread
I was recently...

Nov1505 12:25 PM
shmoe

2 
1,121 
does anyone have a really good method for writing out words or messages using parametric equations, or ...even better...

Nov1405 12:09 AM
bomba923

2 
1,160 
Suppose h and h o f are both C^infty on f(U) and U correspondingly, with U an open set. Assume now that f(U) is open....

Nov1305 12:36 PM
Palindrom

2 
1,283 
I'm looking for the equations of hypertori (e.g. ndimensional tori). By equations I'm mean explicit, implicit, or...

Nov1105 06:32 PM
hypermorphism

1 
960 
I hope you have fun with these...
OK, so you know the geometric series, right? It goes like this:
...

Nov1105 01:26 PM
fourier jr

7 
1,776 
Let be the function Ln\zeta(2e^{s}) does its fourier transform exist?....where \zeta(s) is teh Zeta function of...

Nov1005 08:55 AM
matt grime

1 
1,523 
I've been working with Complex Analysis and have noticed an interesting result.
Under what conditions will the...

Nov905 06:42 AM
saltydog

3 
2,688 

how do i get to solve this...

Nov705 11:39 AM
latyph

5 
1,100 
let be the Bernoulli formula for calculating an integral in the form:
...

Nov705 06:39 AM
dextercioby

1 
7,863 
I was wondering if anyone had any links that could show me some Leibniz theroems or maybe a bio.
Also, I was...

Nov505 06:03 AM
benorin

4 
1,530 
Suppose you have a smooth parametrically defined volume V givin by the following equation.
f(x,y,z,w)= r(u,s,v)...

Nov305 05:15 PM
Edwin

4 
3,395 
I was wondering if a converging infinite series which includes "x" to ascending whole number powers would fit under...

Nov205 07:38 PM
Hurkyl

1 
4,965 
Can any one compute the integration of the error function?

Oct3105 10:07 AM
abdo375

7 
9,290 
I've been having some trouble grasping the conditions necessary to apply the chain rule to achieve the derivative of...

Oct3005 11:13 PM
Robokapp

3 
4,469 
So it is wellknown that for n=2,3,... the following equation holds...

Oct3005 02:54 PM
benorin

0 
2,244 
Hello, a question: is there a reasonable way to obtain \int x^xdx ??

Oct3005 04:31 AM
Johnny Numbers

8 
2,810 
let be the function w(x) that only takes discrete values in the sense that is only defined for x=n being n an...

Oct2905 12:39 PM
Hurkyl

2 
7,617 
So I'm supposed to describe the riemann surface of the following map:
w=z\sqrt{z^21}
I can sort of understand the...

Oct2905 01:43 AM
Haelfix

6 
2,051 
I saw this thing where someone proved that the imaginary number, i, the sqrt(1) was equal to 1.
here it is:
i=...

Oct2805 10:26 PM
masudr

9 
3,601 
I'm guessing not a lot will care about this becasue it's not very relevant, but my calc teacher couldn't do this and I...

Oct2805 10:18 PM
masudr

12 
1,683 
The extreme value theorem says that if a function is continuous on a closed interval then there are an absolute max...

Oct2705 11:04 PM
hypermorphism

11 
13,485 
How can you invert a Taylor serie?
x=y+Ay^2+By^3+Cy^4....
to y=ax+bx^2+cx^3 ...
without the lagrange theorem......

Oct2605 01:29 PM
Tom Mattson

1 
1,542 
Quick question: what does it mean for a measure to have finite mass? (is this another way of saying sigma finite or...

Oct2605 12:27 PM
homology

5 
2,026 
Question about the maclaurin serie and the laplace transform.
For maclaurin serie i wonder, the function used for...

Oct2605 11:47 AM
HallsofIvy

1 
1,572 
Hello,
I have the following equation
\int \!v{dv}={\it GM}\,\int \!{y}^{2}{dy}\]}
Integrating I get...
\}

Oct2505 05:10 PM
opticaltempest

7 
1,829 
OK, so I've been there before, Hilbert Space that is. You know, infinite dimensional function space. At least I...

Oct2505 01:32 PM
benorin

6 
1,578 
Hello, everybody!
I'm a Maths/Physics student at Ecuador. Sorry if my English sucks, i'll try to do my best... Some...

Oct2505 10:57 AM
SebastianG

3 
1,312 
Please for the love of god help me.
I have a fundamental misunderstanding of differentials and Leibniz notation....

Oct2405 06:27 PM
samh

14 
1,954 
I know that there are different definitions for a limit point .
"A number such that for all , there exists a...

Oct2205 12:59 PM
HallsofIvy

6 
4,274 