C++ Programming/Code/Standard C Library/Functions/pow< C++ Programming | Code/Standard C Library | Functions
#include <cmath> double pow( double base, double exp );
The pow() function returns base raised to the expth power. There's a domain error if base is zero and exp is less than or equal to zero. There's also a domain error if base is negative and exp is not an integer. There's a range error if an overflow occurs.