pow [function]

pow( x, y )

returns x raised to the power y, as real

• If base (x) is negative and exponent (y) is not an integral value, or if base is zero and exponent is negative, function returns null and emits a warning message.

pow( 2, 5 ); // real (32)
pow( 9, 0.5 ); // real (3)
pow( -1, 0.5 ); // null; Warning: pow(): mathematical error