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gmp_jacobi> <gmp_intval
[edit] Last updated: Fri, 17 May 2013

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gmp_invert

(PHP 4 >= 4.0.4, PHP 5)

gmp_invertInverse by modulo

说明

resource gmp_invert ( resource $a , resource $b )

Computes the inverse of a modulo b.

参数

a

可以是一个 GMP 数据 resouce,或一个可以转换为数值的字符串。

b

可以是一个 GMP 数据 resouce,或一个可以转换为数值的字符串。

返回值

A GMP number on success or FALSE if an inverse does not exist.

范例

Example #1 gmp_invert() example

<?php
echo gmp_invert("5""10"); // no inverse, outputs nothing, result is FALSE
$invert gmp_invert("5""11");
echo 
gmp_strval($invert) . "\n";
?>

以上例程会输出:

9



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