006_valorPI.c

Go to the documentation of this file.

#include <stdio.h>
 
int main(int argc, char *argv[])
{
    float pi;
    int i, n, den, sg;
    do{
        printf("Ingrese el numero de terminos: ");
        scanf("%d", &n);
    }while(n<0);
    for(i=0, pi=1; i<n; i++)
    {
        den = 2*i+3;
        sg = 2*(i%2)-1;
        pi+=(sg/(float)den);
    }
    pi*=4;
    printf("PI = %f\n", pi);
    return 0;
}