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

Feb2313 09:23 AM
micromass

1 
39,012 
I have an upcoming Linear Algebra exam and my textbooks are really vague in defining certain concepts (and he didn't...

Mar2103 05:17 AM
Hurkyl

26 
3,957 
Some people try to memorize the digits of Pi, but why do they do it ?
They say that first of all some day you may use...

Mar2703 01:59 PM
Mike H

21 
5,890 
Is total formalization possible? If not, why not?
The following is a first course in formal mathematical logic. ...

Mar3103 08:34 PM
damgo

16 
4,624 
What is the difference between Zeno's paradox and the Thompson lamp?
In PF v2.0, Ontoplasma brought this up, and...

Mar1803 06:22 PM
Tom Mattson

5 
2,537 
First of all, I recently purchased a Calculus book for a real bargain: $ 0.75 + tax! I spent spring break giving...

Mar1803 06:47 PM
Sting

5 
2,629 
is category theory being used in physics if yes in which branch in physics?
thanks in advance.

Mar2003 05:59 AM
rutwig

2 
5,661 
let be the function a(x) defined as:
1 Iff x is prime
0 x is not prime
then appliying Abel,s...

Mar1803 03:03 AM
eljose79

0 
2,388 
the best way to get the next zero in a number on into infinity is to us the 9 its universal.the pattern only works...

Mar1803 12:40 PM
STAii

1 
2,680 
What comprises the transition from math to physics? alexander has said that physics is math. John Archibald Wheeler...

Mar2203 10:03 AM
drag

10 
2,604 
I just don't get it!
We're learning about finding the slope of a line. And I don't get any of it, so can someone...

Mar3003 12:14 PM
HallsofIvy

35 
4,137 
Everyone here loves to go on about it but what is it?

Mar2403 01:53 AM
arivero

8 
2,553 
What is a rhombus?

Mar2003 08:03 AM
Bubonic Plague

1 
3,932 
I know how scientists first came to realize that E = MC2, but I do not know why it does. If it didn't, would the...

Mar3103 01:37 PM
Loren Booda

18 
4,242 
Hi, I'm the guy formerly known as carsten. This is just a test to see if everything works.
OK, you have the numbers...

Mar2403 02:59 PM
Njorl

9 
2,785 
Given n+1 points in ndimensional Euclidean space, how many polytopes (generalizations of polygons of n to as few as 2...

Mar2203 04:28 PM
damgo

10 
3,259 
i've been oposing the traditionalmodern physics as much as i can. unfortunately, no one is pating much attention to...

Mar2503 05:29 PM
Hurkyl

22 
3,181 
To what length do you have to know Algebra in order to begin teaching yourself the basics of Calculus? How much...

Mar2303 01:04 PM
Sting

10 
16,579 
i think i have proved finally that fact..that a series can always be substituted by an integral..
...

Mar2203 12:32 PM
damgo

1 
3,230 
Can a line y=ax+b that intersects an arbitrary function y=f(x) a maximum number of times be found in general, where a...

Mar2503 05:42 AM
ObsessiveMathsFreak

12 
2,371 
Prove this: Among any 6 natural numbers in a row (e.g. 20,21,22,23,24,25) there's at least 2 of them which have no...

Mar2503 03:31 AM
ottjes

6 
2,166 
What is this paradox?..someone could explain me please i lost this conference given in my university.

Mar2603 05:11 PM
mathman

12 
3,177 
Do you know the Complex Plane?
Quaternions aren't such a pain!
Do you sing soliloquies
Concerning Reimann...

Mar2503 04:56 PM
BenCS

3 
2,229 
Let there be a function f: RxR>R
Is there any connection between the differentiability
(I am not sure that this...

Mar2603 02:15 PM
vacuum

4 
6,723 
i find it is imposible..in fact there is more matter in the end that in the principle....

Mar2803 08:32 AM
roeighty

4 
1,957 
This is related to the BanachTarski paradox. One of the sites mentioned in that thread has a beautiful "experiment"...

Mar3003 04:54 PM
ObsessiveMathsFreak

10 
3,532 
My maths teacher says this problem is not as impossible as it seems, but I just can't solve it.
Show that (x + a +...

Mar2603 05:47 PM
Hurkyl

4 
4,124 
ok so we can write greatest number that is < 5
(`_
4.9 which means 4.9999999999999...
then.. what's the next...

Apr103 08:46 AM
Integral

6 
2,962 
let be the equation f(g(t))=g(t) where f is known but g(t) not.... i think that perhaps we could solve it by iteration...

Mar2703 07:26 PM
Integral

5 
2,782 
t=sE^2
I wont explain it untill someone gets close enough and I will private message them what it means...

Mar2903 08:54 PM
Loren Booda

15 
2,456 
In fact let,s suppose we throw a dice...N times (with N tends to infinity)..then coul be a fixed point in the...

Mar2803 09:52 AM
Njorl

2 
1,907 
Someone helps me !
I'm looking for where I can download free eprint about Tensor Calculus and Density Functional...

Mar2903 06:51 PM
Mike H

1 
2,092 
SETI's search for alien contact includes detecting intelligent analog transmissions and also those carrying sequences...

Mar3003 12:32 AM
Loren Booda

1 
2,277 
What does this symbol m mean in geometry?

Mar3003 12:02 PM
HallsofIvy

1 
2,300 
Where can I find the works of Karl Gauss, online or in a book.

Apr103 10:08 PM
selfAdjoint

3 
2,474 
 Let x be the smallest integer greater than 2000 that is the product of seven primes.
 Let y be the largest integer...

Mar3103 02:37 AM
2216

2 
1,783 
What is the largest possible number of acute angles that a 2001gon (shape with 2001 sides) can have if no two sides...

Mar3103 12:02 PM
BenCS

2 
1,933 
If you have a lottery (Megamillions) and you sell 20,000,000 tickets, the probability of them all losing is given by:...

Mar3103 03:52 PM
Loren Booda

8 
2,944 
The real objects are finite as shown in the book Theory of Interaction by Eugene Savov  http://www.eugenesavov.com...

Apr103 01:41 PM
Loren Booda

3 
1,712 
http://www.nature.com/nsu/030317/03031713.html

Mar3103 11:21 PM
damgo

7 
4,534 
I'm currently doing a project for my Computer Science class (this is in QBASIC).
The purpose is to "teach" someone...

Apr103 08:52 PM
Hurkyl

1 
3,745 