Messages

31

Math and Other Problems / Re: Well-known, but don't look up

« on: April 13, 2008, 10:25:18 am »

Answer is .33

Order isn't important so there are 3 different states, BB, GG, BG
Each has the same probability P, the sum of the probabilities has to equal 1,
so 3P = 1 or P = .33.

32

Math and Other Problems / Re: nxn grid, n even

« on: April 13, 2008, 10:18:20 am »

I'd assume you could prove it with graph theory/connected components but its just not fun to proof.  And first year of discrete math? I only have to take one.

33

Math and Other Problems / Re: nxn grid, n even

« on: April 13, 2008, 02:49:04 am »

It is not possible...I can't mathematically prove it cause it is blatantly obvious.
1 0    1 1 1 0  1 1 1 1 1 0
0 1    1 1 1 1  1 1 1 1 1 1
        1 1 1 1  1 1 1 1 1 1
        0 1 1 1  1 1 1 1 1 1
                   1 1 1 1 1 1
                   0 1 1 1 1 1

are all clearly not possible.

34

Math and Other Problems / Re: nxn grid, n even

« on: April 12, 2008, 03:16:52 am »

no...a 4 variable K-map with PoS of [(~A)+B+(~C)+D][A+(~B)+C+(~D)] would be an example of it not being possible.

35

Math and Other Problems / Re: At least one real zero?

« on: April 11, 2008, 05:33:56 pm »

Calculus theorems are pointless, they can all be easily re derived on the spot if you don't see a solution intuitively.

36

Math and Other Problems / Re: At least one real zero?

« on: April 11, 2008, 02:19:03 am »

for 0 < x < 1, P(x) <> 0, therefore, p(x) needs to signs between 0 and 1 crossing the x-axis...I am sorry my math doesn't translate to words very well.

37

Math and Other Problems / Re: At least one real zero?

« on: April 11, 2008, 01:26:27 am »

P(x) as in the anti derivative of p(x).  Your given constraint is P(1)=0.

38

Math and Other Problems / Re: At least one real zero?

« on: April 10, 2008, 11:28:28 pm »

Im not going to bother but since the constraint seems to indicate P(1)=0, then I would say yea, there probably a zero of p(x)...too lazy to do the math to prove it though.

P(0)=0 as well but 0<x<1 for P(x) isn't zero...so its a parabola and the inflection point of that parabola is a zero of p(x) or something like that.

39

Math and Other Problems / Re: At least one real zero?

« on: April 10, 2008, 09:46:50 pm »

What are a,b,c,d,e?

40

Math and Other Problems / Retardedly Poor Physics Problem

« on: March 02, 2008, 01:35:07 am »

It took me an hour just to read it right, I am not even sure how to solve this, its for NON calculus based Physics 2.  Its for my friend and I am too lazy to look at my Physics book...I think Digital Logic replaced physics in my brain.

http://img89.imageshack.us/img89/4348/jiggawiggawi8.png

41

Math and Other Problems / Re: Question 1 in Calculus Proof Questions

« on: May 21, 2007, 09:34:39 pm »

The integral doesn't depend on h so the limit can be pulled out...

42

Math and Other Problems / Re: Question 1 in Calculus Proof Questions

« on: May 21, 2007, 01:11:34 am »

For any function the integral of the derivative of the function is the function?  What do you want us to prove?  It is obvious.

43

General Discussion / Re: Happy St. Patrick's Day!

« on: March 19, 2007, 01:04:45 am »

I find St. Patrick's Day offensive as it is celebrated in the US.  As the majority of my family is Irish and St. Patrick's Day is one of the holiest days in Ireland, where they celebrate by going to Mass.

44

Academic / School / Re: I am going for ASB!!!

« on: March 13, 2007, 10:51:14 pm »

This looks like it will turn out as well as when my friend ran against a black kid with the slogan, "Do Whats Right, Vote White."

45

General Discussion / Re: Account on eBay

« on: January 18, 2007, 09:45:29 am »

convert what they put to values, i bet they are using some crazy symbol in there.