Mathomatic has been under continual development since 1986 by the primary author George Gesslein II, with help from the Internet community. To donate money and encourage future development, please mail a check or money order in U.S. dollars, payable to:
George Gesslein II
P.O. Box 224
Lansing, New York 14882-0224
USA
Please indicate what the donation is for, so I can write you an appropriate thank you letter. If you are expecting services for your donation, please indicate this by email before you send the donation. My résumé is online.
To donate services to the Mathomatic project, please send me an email to discuss it. I am currently battling thymic cancer, so any help with keeping Mathomatic alive is appreciated.
I am making available the final DOS version of Mathomatic for historical purposes, so you can see how far Mathomatic has progressed recently. It was released on October 29, 2003. The ZIP archive also contains the last version of Personal Harmonograph Simulator for DOS, which is an automatically artistic, open source, graphics program.
