摘要: atan函数:返回数值的余切值原型:double atan(double x)#include#includeusing namespace std;int main(){ double PI = 4.0*atan(1.0); double r; while(cin>>r) { cout<<"PI... 阅读全文
posted @ 2015-01-08 23:14 NYNU_ACM 阅读(1388) 评论(0) 推荐(0) 编辑