If you purchased an earlier version of Macsyma, you may upgrade to the Windows version 2.4 for $250 (half the price for new customers).  For the upgrade price you get a Macsyma 2.4 CD and Windows license keys for Macsyma, NumKit and PDEase.  There is no hard copy documentation, but there is extensive documentation on the CD.  There are unresolved issues with Macsyma running on versions of Windows beyond XP.

To take advantage of this offer, you must provide proof of purchase for an earlier version (either a receipt for payment or the media for your older version).

If you are interested, send your proof of purchase, shipping address and payment to:


                   Attn:  Macsyma Upgrade Offer

                   P.O. Box 10862

                   Burke, VA  22009

Make checks and money orders payable to Symbolics.

If you would like to pay by credit card, send e-mail to for instructions on how to make a credit card payment through the Payment Pal system.  There will be an $8 transaction fee added for credit card purchases.

If you have any questions about this offer, you may call David Schmidt at 703-455-0430.