Editing APL (programming language) (section)

=== Derivative languages ===
APL has formed the basis of, or influenced, the following languages:{{citation needed|reason=Not contesting these statements at all; some of them are nearly self-evident (J and K, for example), but still, WP quality standards require sources|date=February 2020}}
* [[A+ (programming language)|A and A+]], an alternative APL, the latter with graphical extensions.
* [[FP (programming language)|FP]], a functional programming language.
* Ivy, an interpreter for an APL-like language developed by [[Rob Pike]], and which uses [[ASCII]] as input.<ref>{{Cite web |url=https://godoc.org/robpike.io/ivy |title=Ivy |last1=Pike |first1=Rob |date=2018-03-25 |website=GoDoc |archive-url=https://web.archive.org/web/20190813210651/https://godoc.org/robpike.io/ivy|archive-date=2019-08-13}}</ref>
* [[J (programming language)|J]], which was also designed by Iverson, and which uses [[ASCII]] with [[Digraph (computing)|digraphs]] instead of special symbols.<ref name="jinsp">{{cite web |last1=Hui |first1=Roger |url=http://www.jsoftware.com/jwiki/Essays/Bibliography |title=A Bibliography of APL and J |website=jsoftware.com/jwiki |access-date=March 2, 2010}}</ref>
* [[K (programming language)|K]], a proprietary variant of APL developed by Arthur Whitney.<ref name="kinsp">{{cite web |url=http://kx.com/Company/press-releases/arthur-interview.php |title=An Interview with Arthur Whitney |publisher=Kx Systems |date=January 4, 2004 |access-date=March 2, 2010 |url-status=dead |archive-url=https://web.archive.org/web/20090404064737/http://kx.com/Company/press-releases/arthur-interview.php |archive-date=April 4, 2009}}</ref>
* [[MATLAB]], a numerical computation tool.<ref name="mworks">{{cite web |url=http://www.mathworks.com/company/newsletters/news_notes/clevescorner/jan06.pdf |title=The Growth of MATLAB |last1=Moler |first1=Cleve |access-date=February 3, 2010 |url-status=dead |archive-url=https://web.archive.org/web/20090411120119/http://www.mathworks.com/company/newsletters/news_notes/clevescorner/jan06.pdf |archive-date=April 11, 2009}}</ref>
* [[Nial]], a high-level array programming language with a functional programming notation.
* [[Polymorphic Programming Language]], an interactive, extensible language with a similar base language.
* [[S (programming language)|S]], a statistical programming language (usually now seen in the open-source version known as [[R (programming language)|R]]).
* [[Snap! (programming language)|Snap''!'']], a low-code block-based programming language, born as an extended reimplementation of [[Scratch (programming language)|Scratch]]
* [[Speakeasy (computational environment)|Speakeasy]], a numerical computing interactive environment.
* [[Wolfram Language]], the programming language of [[Mathematica]].<ref>{{Cite web|url=https://www.wolfram.com/language/faq/|title=Wolfram Language FAQ|quote=LISP and APL were two early influences|publisher=Wolfram|access-date=February 20, 2020}}</ref>