<html><body>echo(pow(2,4) . "<br>");echo(pow(-2,4) . "<br>");echo(pow(-2,-4) . "<br>");echo(pow(-2,-3.2));</body><!-- Mirrored from www.w3schools.com/php/phptryit.asp?filename=tryphp_func_math_pow by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:51:03 GMT --></html>