note 25725 added to ref.math

I _NEVER_ thought I would need to use this after leaving school, but I did... To find a triangular number (recursively) eg. tri(5) = 5 + 4 + 3 + 2 + 1 = 15 function tri($x) { if ($x == 1) return 1; else return ($x + tri($x - 1)); } -- http://www.php.net/manual/en/ref.math.php http://master.php.net/manage/user-notes.php?action=edit+25725 http://master.php.net/manage/user-notes.php?action=delete+25725 http://master.php.net/manage/user-notes.php?action=reject+25725