Frmula de Leibniz

#include <math.h>#include <stdio.h>#include <stdlib.h>int main(int argc,char **argv){  double n = 0;  double s = 0;  double i = 100;  if(argc != 1){    i = atol(argv[1]);  }  while(n<=i){    s += pow(-1,n)/(2*n+1);    n++;  }  printf("Pi: %1.100f\n",s*4);  return 0;}