View Code of Problem 74

#include<stdio.h>
#include<math.h>
int main()
{
    double x2,a,x1;
    scanf("%lf",&a);
    x2=a/2;
    while(fabs(x2-x1)>=1e-5)
    {
        x1=x2;
        x2=(x2+a/x2)/2;
    }
    printf("%.3lf",x2);
    return 0;
}