Thursday, 08 December 2005 Graphmatica is a powerful equation plotter with numerical
and calculus features. Graph Cartesian functions, relations, and inequalities,
plus polar, parametric, and ordinary differential equations. Up to 25 graphs on
screen at once. Offers copy to clipboard (bitmap and WMF), Button Bar, on-line
help and demo files. In summary, a great tool for students and teachers of
anything from high-school algebra through college calculus.