#include <iostream>
#include <cmath>
using namespace std;
bool prime(int n);
int main()
{
double i;
while (true)
{
cout << "Enter a number that isn't 0: ";
cin >> i;
我需要編寫自己的sqrt函數:double my_sqrt_1(double n) 我該如何去做這件事?起初,我試圖把 「)INT主(」 本外: double my_sqrt_1(double n)
{
int x = 1;
x = (x + n/x)/2;
}
然後我把這個: int main()
{
cout << "Please enter a val