note 24917 added to function.pow
| From: | b1svkg54 at glen-net dot ca | Date: | Wed, 04 Sep 2002 21:33:03 +0000 |
| Subject: | note 24917 added to function.pow | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-36124@lists.php.net to get a copy of this message | ||
A function I made to calculate pi using Wallis' Formula and pow(); I hope it is of help.
Rimtech
#phphelp on DalNet IRC
<?
function calculatepi($terms)
{
$pi = 0;
$k = 1;
while ($terms != 0)
{
$terms--;
$pi = $pi / 4;
$pi = $pi + (1/(((2*$k)-1)*(-1)*(pow(-1,$k))));
$pi = $pi * 4;
$k++;
}
return $pi;
}
?>
--
http://www.php.net/manual/en/function.pow.php
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