pow

pow, powf, powl

Defined in header <math.h>
float powf( float base, float exponent );
(1) (since C99)
double pow( double base, double exponent );
(2)
long double powl( long double base, long double exponent );
(3) (since C99)
Defined in header <tgmath.h>
#define pow( base, exponent )