Ratfiv is a programming language created in 1980.

Ratfiv is an enhanced version of the Ratfor programming language, a preprocessor for Fortran designed to give it C-like capabilities. Fortran was widely used for scientific programming but had very basic control-flow primitives ("do" and "goto") and no "macro" facility which limited its expressiveness. The name of the language is a pun (Ratfor (RATional FORtran) -> "Rat Four" -> "Rat Five" -> RatFiv). Read more on Wikipedia...

• Ratfiv Wikipedia page
• Ratfiv first developed in Institute for Cancer Research
• See also: (3 related languages)Fortran, C, RATFOR