The UK's Premier Website for Shareware and Freeware Downloads. You can specify an unlimited number of equations, which can be plotted using different colours and lighting conditions.
Functions can be parametric, and can include a time variable for animation.
All plots can be in either Cartesian, cylindrical, or spherical coordinates. Surface plots may, or may not be solid, and if solid, may, or may not be shaded. The presentation-quality graphs may also be copied and pasted into you own documents. Additional features include a built-in expression calculator, and a completely customized interface. New features include plotting graphs of tables, mouse cursor coordinates tracking, special mouse cursors for different modes, tables can contain up to 10,000 points, and some interface improvements.