]]>http://www.mathisfunforum.com/profile.php?id=337902009-04-15T13:32:25Zhttp://www.mathisfunforum.com/viewtopic.php?pid=110123#p110123love this part of the site: http://www.graphcalc.com/y2k.shtml]]>http://www.mathisfunforum.com/profile.php?id=30222007-07-17T12:22:02Zhttp://www.mathisfunforum.com/viewtopic.php?pid=75606#p75606This website has a really good free downloadable calculator for graphing. It's 3D graphs in particular are of a much better standard than you would get in handhelds.