Wolfram Research, Inc. 100 Trade Center Drive Champaign, IL 61820 Tel:217.398.0700 Fax:++1.217.398.0747Stewart Dickson has been a user of the Mathematica(R) system for doing mathematics by computer since April, 1990, when Stephen Wolfram invited him to contribute illustrations to Mathematica, second edition, Redwood CIty: Addison Wesley Publishing, 1991.
WRI has supported the work of Stewart Dickson since 1990 for the development of images demonstrating the concretization of abstraction using Mathematica.
The mirror site
http://www.wolfram.com/~mathart is supported by Wolfram Research, Inc.See www.wolfram.com