View Code of Problem 74

#include<stdio.h>
# include<math.h>
int main(){
	double a;
	scanf("%lf",&a);
	double x1=a;
	double x2=(x1+a/x1)/2;
	while(fabs(x1-x2)>0.00001){
		x1=x2;
		x2=(x1+a/x1)/2;
	}
	printf("%.3f",x2);
	return 0;
}