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gmp_neg

(PHP 4 >= 4.0.4, PHP 5)

gmp_neg -- Negate number

Description

resource gmp_neg ( resource a )

Returns -a.

例子 1. gmp_neg() example


<?php

$neg1 = gmp_neg("1"); 

echo gmp_strval($neg1) . "\n";

$neg2 = gmp_neg("-1");

echo gmp_strval($neg2) . "\n";

?>

The printout of the above program will be:

-1
1

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Last updated: Thu Jul 7 19:13:47 2005 CST