http://www.zuneboards.com/staff/Nurt...scientific.zip
Just to prove I am working on it, here's what I have done so far.
At this point it is mostly just a scientific calculator, the home screen works and the math works, Settings is there but I haven't figured out what settings to use yet so it's just default stuff.
I still have to do the actual graphing part, which should be relatively easy, however I spent about a day working on what turned out to need time travel the way I was doing it so yeah...