FORMAC
FORmula MAnipulation Compiler. J. Sammet & Tobey, IBM Boston
APD, 1962. An extension of {Fortran} for {symbolic
mathematics}. Versions: PL/I-FORMAC and FORMAC73.
["Introduction to FORMAC", J.E. Sammet et al, IEEE Trans Elec
Comp (Aug 1964)].
[Sammet 1969, pp. 474-491].