Php/docs/function.gmp-neg

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gmp_neg

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

gmp_negNegate number


Description

gmp_neg ( GMP $a ) : GMP

Returns the negative value of a number.


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.


Return Values

Returns -a, as a GMP number.


Examples

Example #1 gmp_neg() example

<?php$neg1 = gmp_neg("1");echo gmp_strval($neg1) . "\n";$neg2 = gmp_neg("-1");echo gmp_strval($neg2) . "\n";?>

The above example will output:


-1
1