Is there any package/macro for plotting implicit 3d functions? For instance, how do you plot z+x+y=1 and x^2+2y^2=1 in 3d? -- به نام خداوند جان و خرد کزین برتر اندیشه برنگذرد -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://tug.org/pipermail/pstricks/attachments/20100927/d864cc93/attachment.html>