C++数学函数

#include <iostream>#include <cmath>using namespace std;int main(){double a=3;cout<<abs(a)<<endl;//绝对值cout<<pow(a,3)<<endl;//冥cout<<exp(3)<<endl;//指数cout<<sqrt(a)<<endl;//开平方cout<<log(a)<<endl;//对数cout<<log10(a)<<endl;//以10为底的对数cout<<sin(a)<<endl;//正弦cout<<cos(a)<<endl;//余弦cout<<tan(a)<<endl;//正切cout<<sinh(a)<<endl;//sinhcout<<cosh(a)<<endl;//coshcout<<tanh(a)<<endl;//反正弦cout<<asin(a)<<endl;//反余弦cout<<acos(a)<<endl;//反正弦cout<<atan(a)<<endl;//反正切cout<<endl;return 0;}