PHP5中文手册·Legendre symbol -- 追寻梦想＞编程乐园＞PHP 编程

int gmp_legendre ( resource $a , resource $p )

Compute the » Legendre symbol of a and p . p should be odd and must be positive.

a

It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.

p

It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.

Should be odd and must be positive.

A GMP number resource.

Example#1 gmp_legendre() example


<?php
echo gmp_legendre("1", "3") . "\n";
echo gmp_legendre("2", "3") . "\n";
?>

上例将输出：

1
0


	PHP5中文手册 gmp_jacobi gmp_mod GMP PHP Manual gmp_legendre (PHP 4 >= 4.0.4, PHP 5) gmp_legendre — Legendre symbol 说明 int gmp_legendre ( resource `$a` , resource `$p` ) Compute the » Legendre symbol of `a` and `p` . `p` should be odd and must be positive. 参数 `a` It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number. `p` It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number. Should be odd and must be positive. 返回值 A GMP number resource. 范例 Example#1 gmp_legendre() example `<?php echo gmp_legendre("1", "3") . "\n"; echo gmp_legendre("2", "3") . "\n"; ?>` 上例将输出： 1 0 gmp_jacobi gmp_mod GMP PHP Manual