APL (programming language)

Not to be confused with Address (programming language).
APL
ParadigmArray, functional, structured, modular
Designed byKenneth E. Iverson
DeveloperLarry Breed, Dick Lathwell, Roger Moore, others
First appearedNovember 27, 1966; 57 years ago (1966-11-27)[1]
Stable release
ISO/IEC 13751:2001 / February 1, 2001; 23 years ago (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
This article contains APL source code. Without proper rendering support, you may see question marks, boxes, or other symbols instead of APL symbols.

APL (named after the book A Programming Language)[3] 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[4] 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,[5] and computer math packages.[6] It has also inspired several other programming languages.[7][8]

  1. ^ Cite error: The named reference Birthdate was invoked but never defined (see the help page).
  2. ^ "std::iota". cppreference.com.
  3. ^ Kenneth E. Iverson (1 December 1962). A Programming Language. Wiley. ISBN 978-0-471-43014-8. OL 26792153M. Wikidata Q105954505. Retrieved 2023-08-06.
  4. ^ McIntyre, Donald B. (1991). "Language as an Intellectual Tool: From Hieroglyphics to APL". IBM Systems Journal. 30 (4): 554–581. doi:10.1147/sj.304.0554. Archived from the original on March 4, 2016. Retrieved January 9, 2015.
  5. ^ "ACM Award Citation – John Backus". Awards.acm.org. 1977. Archived from the original on February 12, 2008. Retrieved February 3, 2010.
  6. ^ Cite error: The named reference mworks was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference jinsp was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference kinsp was invoked but never defined (see the help page).