MACSYMA
Project MAC's SYmbolic MAnipulator. The first comprehensive symbolic mathematics system, written in Lisp by Joel Moses <moses@larch.lcs.mit.edu> of MIT in 1969, later Symbolics, Inc.
Versions include Symbolics Macsyma, DOE Maxima (ANL, in Common LISP) and Vaxima.
ftp://rascal.ics.utexas.edu/pub/maxima-4-155.tar.Z. E-mail: <macsyma-service@symbolics.com>.
["MACSYMA - The Fifth Year", J. Moses, SIGSAM Bulletin 8(3) (Aug 1974)].