Formula ALGOL - ALGOL extension for symbolic math, strings and lists.
Carnegie, CDC G-20, 1962. A.J. Perlis & R. Iturriaga. Sammet 1969, p.583.
"An Extension of ALGOL for Manipulating Formulae", A.J. Perlis et al, CACM
7(2):127-130 (Feb 1964).
Comments, Experience, Additions
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