Aug 7, 2012 #1 D darktronic Newbie level 6 Joined Jul 17, 2012 Messages 12 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,368 Guys, this might be stupid question but im having trouble differentiating this formula. Thanks Attachments Capture.PNG 1.1 KB · Views: 130