View Code of Problem 74

#include<stdio.h>
#include<math.h>
int main(){
  double a,x1,x2;
  scanf("%lf",&a);
  x1 = 1;
  x2 = 2;
  while(fabs(x1 - x2) >= 0.00001){
        x1 = x2;
        x2 = (x1+a/x1)/2;
  }
  printf("%.3lf\n",x2);

  return 0;
}