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[[File:KEI with ATW NY Aug 1989 (cropped) - Ken Iverson.png|thumb|right|Ken Iverson in 1989]] '''Kenneth Eugene Iverson''' (17 December 1920 – 19 October 2004) was a Canadian mathematician and

...t manager. Falkoff is also credited with coining [[the name APL]] based on Iverson's [[A Programming Language]]. ...ion. His later paper "The APL\360 Terminal System", published jointly with Iverson, was the first description of [[APL\360]].

...= [http://infolab.stanford.edu/TR/CS-TR-66-47.html An interpreter for "Iverson notation"] | influenced by = [[Iverson notation]]

# [[Ken Iverson|Iverson, K.E.]], ''[http://www.jsoftware.com/papers/opfns.htm Operators and Functio # Iverson, K.E., ''[http://www.jsoftware.com/papers/APLStyle.htm Programming Style in

...also notational awkwardnesses stemming from binding strengths; stranding, bracket axis and indexing, issues with the rank operator, etc. ...| System implementation through graphical diagrams, comparing evolution of Iverson Notation into today’s traditional [[user-defined function]]s, desirable a

...use of surrogate names.|APLSV User's Manual<ref>[[Adin Falkoff]] and [[Ken Iverson]]. [http://www.softwarepreservation.org/projects/apl/Manuals/APLSVUsersManu ...ighlight lang=apl inline>[]</syntaxhighlight>|| || [[Bracket indexing|Index]]

...[Rotate]] along the second [[axis]]. Axis specification was a feature of [[Iverson notation]] and was ubiquitous in early APLs; many newer APLs which adhere t ...ction]] (<syntaxhighlight lang=apl inline>⎕FIO</syntaxhighlight>) uses the bracket axis syntax as a function selector, as does the [[wikipedia:SQL|SQL]] inter

...[Inner product]], [[Outer product]], [[Assignment]] (including indexed), [[Bracket indexing]], [[Branch]]/[[Label]] ...nt]] (<syntaxhighlight lang=apl inline>.</syntaxhighlight>) ([[Ken Iverson|Iverson]] 1982)

...ical notation]] by having an implied [[Ken_Iverson#Iverson_bracket|Iverson bracket]]. Thus, <syntaxhighlight lang=apl inline>i=j</syntaxhighlight> is APL is e

| [[Bracket indexing]] || {{No}} || {{No}}... ...since 1978'']. ACM [[HOPL]] IV. 2020-06.</ref> It was further developed by Iverson and [[Roger Hui]] when creating the [[J]] language in the 1990s and 2000s;

APL [[Iverson notation|developed from TMN]], and much of APL will be immediately recognis ...or parenthesis. This is because the [[Ken_Iverson#Iverson_bracket|Iverson bracket]] is implied and [[Precedence|functions have long right scope]].

...etain core APL ideas while breaking compatibility, including [[Ken Iverson|Iverson]]'s own [[J]]. Ideas from these languages are sometimes incorporated back i ...anges to existing behavior. [[APL2]] broke from [[APL\360]] by promoting [[bracket indexing]] to higher [[precedence]] than [[stranding]], a decision that was

| influenced by = [[Iverson notation]], [[IVSYS/7090]] ...rivative system such as [[APL*PLUS]] modified to support files.<ref>[[Eric Iverson]]. "The Integration of APL into the Larger World of Data Processing" at [[I

...n of "true" with 1 and "false" with 0 is a simplification of the [[Iverson bracket]], a notation which allowed a truth value to be converted into a number. A

...ighlight lang=apl inline>:</syntaxhighlight>)<ref>[[Ken Iverson|Kenneth E. Iverson]], [https://www.jsoftware.com/papers/APLDictionary.htm A Dictionary of APL] [[Selective assignment]] was was extended to allow [[bracket indexing]] and the [[Each]] operator, in order to match [[APL2]] behaviour.

...d [[Adin Falkoff]] attended but spoke little about their plans, and [[Eric Iverson]], then at [[I.P. Sharp]], participated in discussion. ...APL On-line Shared files system''' developed by [[Larry Breed]] and [[Eric Iverson]] at [[I.P. Sharp]]. [[Al Rose]] ([[STSC]]).