MADCAP
A language for solving mathematical and set problems, for the Maniac II and CDC 6600 computers.
"MADCAP - A Scientific Compiler for a Displayed Formula Textbook Language", M. B. Wells, CACM 4(1):31-36 (Jan 1961).
Madcap 5
1964.
Madcap 6
"The Unified Data Structure Capability in Madcap 6", M. B. Wells et al, International Journal of Computing and Information Science 1(3) (sep 1972).