(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_jacobi — Jacobi symbol
Computes
» Jacobi symbol of a
and
p
. p
should be odd
and must be positive.
PHP 5.5 之前,返回 GMP 数值资源,PHP 5.6 之后,返回 GMP 对象。
Example #1 gmp_jacobi() example
<?php
echo gmp_jacobi("1", "3") . "\n";
echo gmp_jacobi("2", "3") . "\n";
?>
以上例程会输出:
1 0