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gmp_legendre

Legendre symbol (PHP 4 >= 4.0.4, PHP 5)
int gmp_legendre ( resource a, resource p )

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

Parameters

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.

Return Values

A GMP number resource.

Examples

Example 798. gmp_legendre() example

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

The above example will output:

1
0