(PHP 4 >= 4.0.4, PHP 5)
Calculates factorial (a!) of a.
Пример 1. gmp_fact() example
<?php $fact1 = gmp_fact ( 5 ); // 5 * 4 * 3 * 2 * 1 echo gmp_strval ( $fact1 ) . "\n" ; $fact2 = gmp_fact ( 50 ); // 50 * 49 * 48, ... etc echo gmp_strval ( $fact2 ) . "\n" ; ?>
The printout of the above program will be:
120 30414093201713378043612608166064768844377641568960512000000000000