Try the Graphing Calculator 3D here: http://calculator.runiter.com/graphing-calculator/ Please Register or Log in to view images There is a free version available. It plots high quality 2D or 3D graphs from equations or x-y-z data tables. There is also a great scientific calculator available there: http://calculator.runiter.com/math-calculator/ Currently they do not have an ipod version but since these are Java applications, they are willing the make ipod versions if they get many requests. So if you like the program email them and ask for ipod or iphone versions. cheers, Saeid

Well it's not easy to turn that program into an ipod application that is exactly the same. For one thing not only it requires Java, but it also needs Java3D/OpenGL support and therefore the ipod version may a simpler pixel-by-pixel graph graphs instead of a nice shaded polygons that it currently generates in PC and Mac.

There is one for the iPhone and iPod Touch PowerGraph is an awesome little app that has everything you need in a graphing calculator. You can find it in the app store. It's way better than paying $100 for a TI-whatever, or finding it on the Internet every time you need it. Here's the link to PowerGraph in the App Store: http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=290224120&mt=8