APL (programming language)

APL
ParadigmArray, functional, structured, modular
Designed byKenneth E. Iverson
DeveloperLarry Breed, Dick Lathwell, Roger Moore, others
First appearedNovember 27, 1966 (1966-11-27)
Stable release
ISO/IEC 13751:2001 / February 1, 2001 (2001-02-01)
Typing disciplineDynamic
PlatformCross-platform
LicenseProprietary, open source
Websiteaplwiki.com
Major implementations
  • APL\360
  • APL\1130
  • APL*Plus
  • Sharp APL
  • APL2
  • Dyalog APL
  • NARS2000
  • APLX
  • GNU APL
Influenced by
Mathematical notation
Influenced

APL (named after the book A Programming Language) is a programming language developed in the 1960s by Kenneth E. Iverson. Its central datatype is the multidimensional array. It uses a large range of special graphic symbols to represent most functions and operators, leading to very concise code. It has been an important influence on the development of concept modeling, spreadsheets, functional programming, and computer math packages. It has also inspired several other programming languages.