Calculates the yth power of x.

[Classification]

Mathematical library

[Syntax]

#include <math.h>

double __far pow(double x, double y);

[Return value]

Returns the yth power of x.

If x < 0 and y is a non-integer or if x = 0 and y <= 0, pow returns a Not-a-Number (NaN) and sets the macro EDOM for the global variable errno.

If an overflow occurs, pow returns and sets the macro ERANGE for errno.

If an underflow occurs, pow returns a denormal number and sets the macro ERANGE for errno.

[Description]

This function calculates the yth power of x.