C语言-计算派（Π）值

#include

int main()

{

float term,result = 1;

int n;

for(n = 2;n<=100;n =n+2)

{

term=(n*n)/((n-1)*(n+1));

result=result*term;

}
printf("pi=%f\n",2*result);

return 0;

}