Crazy Math Formulas

[echos]

Thanks for the correction it was a little fuzzy in my mind. I found that one on google a while back ago and made a c program out of it. but i lost the source code.

 unsigned double float pi;
 unsigned int top;
 unsigned int bottem;
 unsigned int count;
 
 int main()
 {
 top = 2;
 bottem = 1;
 pi = top/bottem;
 
 while(count < 10000)
 {
 pi *= top/bottem;
 bottem += 2;
 
 pi *= top/bottem;
 top += 2;
 
 count++
 }
 
 printf ("pi = %f", pi*2);
 }