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| run online = [https://kparc.io/kc K7] | | run online = [https://kparc.io/kc K7] | ||
}} | }} | ||
'''K''' denotes a family of programming languages designed by [[Arthur Whitney]] and commercialized by Morgan Stanley, Kx Systems, and Shakti. In 1985, while at Morgan Stanley, Whitney created the statically typed A dialect of APL. His colleagues extended A into [[A+]] in 1988. Finally, Whitney presented the first K implementation in 1992, a "reduced instruction set" dialect which only used ASCII [[glyph|glyphs]] and limited arrays to [[list model|(nested) vectors]]. For a long time, K's main role was as implementation language for [[Q]], the query language of kdb+, which is an in-memory, column-based database. K7 ("Shakti K") was the first K to have full Unicode support, and it also uses a limited set non-ASCII | '''K''' denotes a family of programming languages designed by [[Arthur Whitney]] and commercialized by Morgan Stanley, Kx Systems, and Shakti. In 1985, while at Morgan Stanley, Whitney created the statically typed A dialect of APL. His colleagues extended A into [[A+]] in 1988. Finally, Whitney presented the first K implementation in 1992, a "reduced instruction set" dialect which only used ASCII [[glyph|glyphs]] and limited arrays to [[list model|(nested) vectors]]. For a long time, K's main role was as implementation language for [[Q]], the query language of kdb+, which is an in-memory, column-based database. K7 (the first "Shakti K") was the first K to have full Unicode support, and it also uses a limited set non-ASCII glyphs in the core language, for example <source lang=apl inline>Ø</source> and <source lang=apl inline>∞</source>, however non-ASCII glyphs were removed in the subsequent K9. | ||
== Releases == | == Releases == | ||
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| <code>%</code> || [[reciprocal]] || [[divide]] || || | | <code>%</code> || [[reciprocal]] || [[divide]] || || | ||
|- | |- | ||
| <code>|</code> || [[reverse]] || [[max]]|[[or]] || || | | <code><nowiki>|</nowiki></code> || [[reverse]] || [[max]]|[[or]] || || | ||
|- | |- | ||
| <code>&</code> || [[where]] || [[min]]|[[and]] || || | | <code>&</code> || [[where]] || [[min]]|[[and]] || || | ||
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! Adverb !! Definition | ! Adverb !! Definition | ||
|- | |- | ||
| <code>/</code> || over ( | | <code>/</code> || over (includes [[Reduce]] and [[Power operator|Power]]) | ||
|- | |- | ||
| <code>\</code> || [[scan]] | | <code>\</code> || [[scan]] | ||
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| <code>':</code> || eachpair (like [[Windowed Reduce]]) | | <code>':</code> || eachpair (like [[Windowed Reduce]]) | ||
|} | |} | ||
==External links== | ==External links== | ||
* [https://ngn.bitbucket.io/k.html Overview of K implementations] | * [https://ngn.bitbucket.io/k.html Overview of K implementations] | ||
{{APL dialects}} | {{APL dialects}}[[Category:K dialects]] | ||