note 42366 added to function.sqrt

How to calculate triangle's area if you haven't height measure. You need only sides' measure. it would have to work. (formula of erone) $s1 = side 1 $s2 = side 2 $s3 = side 3 <? function area($s1,$s2,$s3) { $calc1 = ($s1+$s2+$s3)/2; $calc2 = $p*($p-$s1)*($p-$s2)*($p-$s3); $result = round(sqrt($p),2); return $result; } ?> example of I use: <? //This will make to return the area of a triangle with sides of 3,4,5 $area = area(3,4,5); echo $area; ?> ---- Manual Page -- http://www.php.net/manual/en/function.sqrt.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+42366 Delete -- http://master.php.net/manage/user-notes.php?action=delete+42366&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+42366&report=yes Search -- http://master.php.net/manage/user-notes.php