## Search found 9 matches

Mon Apr 07, 2008 12:07 pm UTC
Topic: 0407: "Cheap GPS"
Replies: 99
Views: 24047

### Re: "Cheap GPS" Discussion

Hmmm....this got me to wondering if it would be possible to make a real life Tron game with GPS systems...

Anyone more knowledgeable about GPS systems want to weigh in on this idea?
Fri Jan 11, 2008 7:37 pm UTC
Forum: Mathematics
Replies: 24
Views: 2235

Good lord, I seem to have opened up a whole can of worms here.

This isn't really helping me =(
Thu Jan 10, 2008 8:03 pm UTC
Forum: Mathematics
Replies: 24
Views: 2235

I thought up this problem and I can't seem to figure out which is correct, so maybe someone here could help me out. Suppose you had a sufficiently large multiple choice test, like 200 questions or so, with answer choices a,b,c,d, all randomly chosen. Suppose that you were 100% confident in all your ...
Mon Jan 07, 2008 8:30 pm UTC
Forum: Mathematics
Topic: Help on an integral...
Replies: 3
Views: 1264

### Help on an integral...

I need to find the integral of 1 / (4 - 5sin(x)).

Our teacher says it can be done with something that has to do with Weierstrass, then a partial fraction. I've googled all over and can't find anything related to this type of integral and Weierstrass, could someone help me out?
Sun Dec 09, 2007 12:55 am UTC
Forum: Mathematics
Topic: Math question problem...
Replies: 8
Views: 1642

### Re: Math question problem...

Wow...how did you think to use that?

More generally, how do you learn techniques like that? I mean, being a high school student, I obviously understand substitution, but I would never have thought to do a substitution like that.

Does it just come with doing lots of problems?
Sun Dec 09, 2007 12:40 am UTC
Forum: Mathematics
Topic: Math question problem...
Replies: 8
Views: 1642

### Math question problem...

Solve this system for x and y x^2 + y^2 = 130 and ((The cube root of x+y) - (The cube root of x-y)) / ((The cube root of x+y) + (The cube root of x-y)) = 3 Been stuck on this problem for a while...any hints? The first equation is a circle, but I have no idea how to simplify the second one into a usa...
Thu Oct 11, 2007 12:59 am UTC
Forum: Science
Topic: A Conservation of Energy/Kinematics problem.
Replies: 4
Views: 1851

### Re: A Conservation of Energy/Kinematics problem.

v(theta) = v1 + mgrsin(theta)?

I have no idea what your getting at here =(
Wed Oct 10, 2007 11:51 pm UTC
Forum: Science
Topic: A Conservation of Energy/Kinematics problem.
Replies: 4
Views: 1851

### A Conservation of Energy/Kinematics problem.

http://img505.imageshack.us/img505/5849/29366767kn2.gif OK. I've been stuck on this for a while. There is a ball of mass m on a string being swung in a vertical circle. At the top, there is a speed v1, and when it swings to the second place, it has speed v2. The only force on it is gravity. At the ...
Sun Jul 15, 2007 11:20 pm UTC
Forum: Mathematics
Topic: Can this number exist?
Replies: 8
Views: 2820

### Can this number exist?

Can there be a number that contains every possible permutation of digits in its entirety? You would think you could so something like 0-9 and keep adding them on to the end, but what about infinitely long sequences? Would the number be in another category of infinity? What about irrational numbers i...