gmp_invert
gmp_invert
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_invert — Inverse by modulo
Description
GMP gmp_invert ( GMP $a , GMP $b )
Computes the inverse of a modulo b.
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.
-
b -
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.
Return Values
A GMP number on success or FALSE if an inverse does not exist.
Examples
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";
?> The above example will output:
9
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https://secure.php.net/manual/en/function.gmp-invert.php
