Jan 20, 2009 #1 L lssdpoly Newbie level 5 Joined Jun 30, 2007 Messages 9 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,336 Who can tell me?
Jan 20, 2009 #2 antonio_eda Advanced Member level 4 Joined Nov 9, 2006 Messages 109 Helped 13 Reputation 26 Reaction score 1 Trophy points 1,298 Activity points 1,816 Adjusted one. The same definition you can find in wikipedia.