Difference between revisions of "Rationalized APL"

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'''Rationalized APL''' is the name of a 1983 paper by [[Ken Iverson]] describing a [[backwards compatible]] extension to APL as developed by Iverson [[IBM]] (for example [[VS APL]]). Written following Iverson's departure from IBM to [[IPSA]] in 1980, it showcases Iverson's stance against the [[nested array model]] used by [[APL2]] and in favor of the [[boxes]] (here, [[enclose]]d arrays) already in use by [[SHARP APL]]. It was a precursor to [[A Dictionary of APL]] and many of the ideas it introduced were later incorporated into [[J]]. It also featured the [[Rank operator]], invented by [[Arthur Whitney]] the previous year, just prior to its inclusion in SHARP.
 
'''Rationalized APL''' is the name of a 1983 paper by [[Ken Iverson]] describing a [[backwards compatible]] extension to APL as developed by Iverson [[IBM]] (for example [[VS APL]]). Written following Iverson's departure from IBM to [[IPSA]] in 1980, it showcases Iverson's stance against the [[nested array model]] used by [[APL2]] and in favor of the [[boxes]] (here, [[enclose]]d arrays) already in use by [[SHARP APL]]. It was a precursor to [[A Dictionary of APL]] and many of the ideas it introduced were later incorporated into [[J]]. It also featured the [[Rank operator]], invented by [[Arthur Whitney]] the previous year, just prior to its inclusion in SHARP.
 
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== External links ==
{{APL dialects}}[[Category:APL Dialects|APL Dialects]][[Category:Iverson designs]]
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* [[Jsoftware]]: [https://www.jsoftware.com/papers/RationalizedAPL.htm Rationalized APL] (digitised)
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{{APL dialects}}[[Category:APL dialects]][[Category:Iverson designs]]

Latest revision as of 08:49, 26 July 2021


Rationalized APL is the name of a 1983 paper by Ken Iverson describing a backwards compatible extension to APL as developed by Iverson IBM (for example VS APL). Written following Iverson's departure from IBM to IPSA in 1980, it showcases Iverson's stance against the nested array model used by APL2 and in favor of the boxes (here, enclosed arrays) already in use by SHARP APL. It was a precursor to A Dictionary of APL and many of the ideas it introduced were later incorporated into J. It also featured the Rank operator, invented by Arthur Whitney the previous year, just prior to its inclusion in SHARP.

External links

APL dialects [edit]
Maintained APL+WinAPL2APL64APL\ivApletteAprilCo-dfnsDyalog APLdzaima/APLExtended Dyalog APLGNU APLKAPNARS2000Pometo
Historical A Programming LanguageA+ (A) ∙ APL#APL\360APL/700APL\1130APL\3000APL.68000APL*PLUSAPL.jlAPL.SVAPLXIverson notationIVSYS/7090NARSngn/aplopenAPLPATRowanSAXSHARP APLRationalized APLVisualAPL (APLNext) ∙ VS APLYork APL
Derivatives AHPLBQNCoSyELIGleeIIvyJJellyJellyfishK (Q, KDB+) ∙ NialRAD
Overviews Timeline of array languagesTimeline of influential array languagesFamily tree of array languages