View Code of Problem 74

#include<stdio.h>
#include<math.h>
void main()
{
	int a;
	double x1, x2;
	scanf("%d", &a);
	x1 = a;
	x2 = 1.0 / 2 * (x1 + a / x1);
	while (fabs(x1-x2)>= 0.00001)
	{
		x1 = x2;
		x2 = 1.0 / 2 * (x1 + a / x1);
	}
	printf("%.3f", x2);
}