Hello w3b5urf3r,
I agree with you that plotting capabilities of SMath should be improved. I know that Mathcad uses some kind of graphics library for graphs (OpenGL I think - not sure). You mentioned gnuplot. Whatever is in question, there is always a principal question here. Who is going to do that? I do not believe that Andrey have enough time to work on this. Therefore, it depends on some good willing programmers. Unfortunately, this is quite uncertain and it might never happen AFAIK
Regards,
Radovan
When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"