Source : Free On-Line Dictionary of Computing

ALTRAN
     
         A {Fortran} extension for {rational algebra}
        developed by W.S. Brown of {Bell Labs} ca. 1968.
     
        ["The ALTRAN System for Rational Function Manipulation - A
        Survey", A.D. Hall, CACM 14(8):517-521 (Aug 1971)].
     
        (1995-06-01)