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PHP gmp_jacobi

PHP original manual for gmp_jacobi [ show | php.net ]

gmp_jacobi

(PHP 4 >= 4.0.4, PHP 5, PHP 7)

gmp_jacobi — Jacobi symbol

Description

int gmp_jacobi ( GMP $a , GMP $p )

Computes » Jacobi symbol of a and p. p should be odd and must be positive.

Parameters

a

Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.

p

Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.

Should be odd and must be positive.

Return Values

A GMP number resource in PHP 5.5 and earlier, or a GMP object in PHP 5.6 and later.

Examples

Example #1 gmp_jacobi() example

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

The above example will output:

1
0