Xplot is an interactive 3D plotting program. It is capable of displaying simple objects that have easily described geometries. You can define your own functions via standard math functions and operators. Xplot can also: calculate with complex numbers\; plot 3D curves, surfaces, tubes or data files\; and displays contors, filled polygon, wire over poly, wireframe, and hidden wireframe display modes.Xplot allows you to export 3D views into PPM and postscript files.