SpaceTime 3.0 by SpaceTime Mathematics is a revolution in mathematics software with 2D, 3D, and 4D graphing and MobileCAS® Technology for computer algebra and calculus.

Explore mathematical concepts in an innovative interface with interactive tutorials that teach you how to plot graphs, solve equations, and write your own scripts in our new powerful programming language.

Download your free 30-day trial for Windows, Pocket PC, and Palm handhelds!
http://www.spacetime.us