Morgan updated his graph program graphDS.

Release notes:

Here is v0.3 of graphDS. I added parametric and polar graphing. Everything else is the same as in the previous release, but now you can press Mode to switch between graph modes while on the graphscreen. Here are the defaults for parametric and polar graphing:
tMin = 0;
tMax = 6.283185307;
tStep = .05;
thetaMin = 0;
thetaMax = 6.283185307;
thetaStep = .05;

Currently, you cannot change these defaults, but eventually I will add capabilities for changing the window, etc.