PAL.C.T MINI SHELL
<?php
/**
* Replace atanh()
*
* @category PHP
* @package PHP_Compat
* @license LGPL - http://www.gnu.org/licenses/lgpl.html
* @copyright 2004-2007 Aidan Lister <aidan@php.net>, Arpad Ray <arpad@php.net>
* @link http://php.net/function.atanh
* @author Arpad Ray <arpad@php.net>
* @version $Revision: 269597 $
* @since PHP 5
* @require PHP 3.0.0
*/
function php_compat_atanh($n)
{
return 0.5 * (log(1 + $n) - log(1 - $n));
}
if (!function_exists('atanh')) {
function atanh($n)
{
return php_compat_atanh($n);
}
}
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