Math Function Library

Tue Oct 28, 2008 2:00 pm

Code:: <?php function subtract($n1, $n2) { return $n1 - $n2; } function add($n1, $n2) { return $n1 + $n2; } function divide($n1, $n2) { if($n2 == 0) return -1; else return $n1 / $n2; } function multiply($n1, $n2) { return $n1 * $n2; } function to_pow($n1, $pow) { if($pow) return $n1 * to_pow($n1, $pow - 1); return 1; } print(to_pow(6, 1) . " "); print(multiply(5, 10) . " "); print(divide(5, 10) . " "); print(subtract(10, 50) . " "); print(add(10, 5) . " "); ?> </body> </html>