do while循环的迭代法

解题思路:

注意事项:

参考代码:

#define _CRT_SECURE_NO_DEPRECATE

#pragma warning(disable:4996)

#include<stdio.h>

#include<math.h>

int main()

{

double result = 1.0;

double cur = result;

double a;

scanf("%lf", &a);

do

{

cur = result;

result = (result + a / result) / 2;

} while (fabs(result - cur) > 1E-5);

printf("%.3f", result);

return 0;

}