标签:
/*用牛顿迭代法求x的平方根*/ class Solution { public: int mySqrt(int x) { double res = 1.0; while(fabs(res*res-x)>1e-6){ res = (res+x/res)/2; } return res; } };
Sqrt(x)
原文地址:http://www.cnblogs.com/llei1573/p/4458211.html