Definitions of A Programming Language

  1. ( APL) A programming language designed originally byKen Iverson at Harvard University in 1957-1960 as a notationfor the concise expression of mathematical algorithms. Itwent unnamed ( or just called Iverson's Language) andunimplemented for many years. Finally a subset, APL\360, wasimplemented in 1964.APL is an interactive array-oriented language and programmingenvironment with many innovative features. It was originallywritten using a non-standard character set. It isdynamically typed with dynamic scope. APL introducedseveral functional forms but is not purely functional.Dyalog APL/W and Visual APL are recognized . NET languages.Dyalog APL/W, APLX and APL2000 all offer object-orientedextensions to the language.ISO 8485 is the 1989 standard defining the language.Commercial versions: APL SV, VS APL, Sharp APL, Sharp APL/PC,APL*PLUS, APL*PLUS/PC, APL*PLUS/PC II, MCM APL, Honeyapple,DEC APL, APL+Win, APL+Linux, APL+Unix and VisualAPL(http://, Dyalog APL(http://, IBM APL2(http://, APLX(http://, Sharp APL(http:// html)Open source version: NARS2000 ( http:// APL wiki ( http:// See also Kamin's interpreters.APLWEB ( http:// translates WEB toAPL.[" A Programming Language", Kenneth E. Iverson, Wiley, 1962].[" APL: An Interactive Approach", 1976].