I can't really explain it. All I know is it has capabilities of plotting things, including creating 3d characters, grids, and 3 dimensional graph plotting. I also know that a person on another forum I'm part of created something with it so that, with the right equation, you could take a 3d rendered image from a 3d studio program, and put it on the web and view it in all its glory (rotate, spin...) It was quite cool. :)Also, this is what the Safari JavaScript programming topic documentation says.