note 99875 added to function.gmp-fact

From: Date: Sun, 12 Sep 2010 05:13:00 +0000
Subject: note 99875 added to function.gmp-fact
Groups: php.notes 
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Alternative method of calculating factorials. <?php function fact($n){ if($n > 170){return 0;} //This function can only calculate the factorial of numbers below 171 $i = $a = 1; while ($i<=$n){ $a = $a * $i; $i++; } $a = sprintf('%f', $a); //Convert from Scientific notation return substr($a, 0, -7); //Remove the trailing decimal places } echo fact(171); //Returns 0 echo "<br />"; echo fact(12); //Returns 479001600 ?> ---- Server IP: 117.55.229.1 Probable Submitter: 110.175.5.221 ---- Manual Page -- http://www.php.net/manual/en/function.gmp-fact.php Edit -- https://master.php.net/note/edit/99875 Del: integrated -- https://master.php.net/note/delete/99875/integrated Del: useless -- https://master.php.net/note/delete/99875/useless Del: bad code -- https://master.php.net/note/delete/99875/bad+code Del: spam -- https://master.php.net/note/delete/99875/spam Del: non-english -- https://master.php.net/note/delete/99875/non-english Del: in docs -- https://master.php.net/note/delete/99875/in+docs Del: other reasons-- https://master.php.net/note/delete/99875 Reject -- https://master.php.net/note/reject/99875 Search -- https://master.php.net/manage/user-notes.php

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