Editing APL (programming language) (section)

{{Short description|Functional programming language for arrays}}
{{Distinguish|Address (programming language)}}
{{Infobox programming language
| name = APL
| logo = APL (programming language) logo.svg
| logo size = 130px
| paradigm = [[Array programming|Array]], [[Functional programming|functional]], [[Structured programming|structured]], [[Modular programming|modular]]
| designer = [[Kenneth E. Iverson]]
| developer = [[Lawrence M. Breed|Larry Breed]], [[Richard H. Lathwell|Dick Lathwell]], [[Roger Moore (computer scientist)|Roger Moore]], others
| year = {{Start date and age|1966|11|27}}<ref name="Birthdate"/>
| latest release version = ISO/IEC 13751:2001
| latest release date = {{Start date and age|2001|02|01}}
| typing = [[Type system|Dynamic]]
| platform = [[Cross-platform software|Cross-platform]]
| license = [[Proprietary software|Proprietary]], [[Open-source software|open source]]
| website = {{url|https://aplwiki.com/}}
| implementations = {{startflatlist}}
* APL\360
* APL\1130
* APL*Plus
* Sharp APL
* APL2
* Dyalog APL
* NARS2000
* APLX
* GNU APL
{{endflatlist}}
| influenced by = [[Mathematical notation]]
| influenced = 
{{startflatlist}}
* [[A+ (programming language)|A and A+]]
* [[C++]]<ref>{{cite web|url=https://en.cppreference.com/w/cpp/algorithm/iota |title=std::iota |work=cppreference.com}}</ref>
* [[FP (programming language)|FP]]
* [[J (programming language)|J]]
* [[K (programming language)|K]]
* [[MATLAB]]
* [[Nial]]
* [[Polymorphic Programming Language|PPL]]
* [[Python (programming language)|Python]]
* [[Q (programming language from Kx Systems)|q (kdb)]]
* [[S (programming language)|S]]
* [[Snap! (programming language)|Snap''!'']]
* [[Speakeasy (computational environment)|Speakeasy]]
* [[Wolfram Language]]
{{endflatlist}}
}}
{{Contains special characters|APL}}

'''APL''' (named after the book ''A Programming Language'')<ref name="aplbook">{{Cite Q|Q105954505|url=https://www.softwarepreservation.org/projects/apl/Books/APROGRAMMING%20LANGUAGE|access-date=2023-08-06}}</ref> is a [[programming language]] developed in the 1960s by [[Kenneth E. Iverson]]. Its central datatype is the [[Array data type#Multi-dimensional arrays|multidimensional array]]. It uses a large range of [[APL syntax and symbols|special graphic symbols]]<ref>{{cite journal |last1=McIntyre |first1=Donald B. |title=Language as an Intellectual Tool: From Hieroglyphics to APL |journal=IBM Systems Journal |date=1991 |volume=30 |issue=4 |pages=554–581 |doi=10.1147/sj.304.0554 |url=http://domino.research.ibm.com/tchjr/journalindex.nsf/e90fc5d047e64ebf85256bc80066919c/9c834f5a16efa82085256bfa00685c72!OpenDocument |access-date=January 9, 2015|archive-url=https://web.archive.org/web/20160304051735/http://domino.research.ibm.com/tchjr/journalindex.nsf/e90fc5d047e64ebf85256bc80066919c/9c834f5a16efa82085256bfa00685c72!OpenDocument|archive-date=March 4, 2016|url-status=dead|url-access=subscription }}</ref> to represent most functions and operators, leading to very concise code. It has been an important influence on the development of concept modeling, [[spreadsheet]]s, [[functional programming]],<ref>{{cite web |url=http://awards.acm.org/citation.cfm?id=0703524&srt=all&aw=140&ao=AMTURING |archive-url=https://web.archive.org/web/20080212043802/https://awards.acm.org/citation.cfm?id=0703524&srt=all&aw=140&ao=AMTURING |archive-date=February 12, 2008 |title=ACM Award Citation&nbsp;– John Backus |publisher=Awards.acm.org |date= 1977 |access-date=February 3, 2010}}</ref> and computer math packages.<ref name="mworks"/> It has also inspired several other programming languages.<ref name="jinsp"/><ref name="kinsp"/>