K: Difference between revisions
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Miraheze>Adám Brudzewsky No edit summary |
Miraheze>Adám Brudzewsky No edit summary |
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| index origin = 0 | | index origin = 0 | ||
| function styles = [[dfn]], [[tacit]] | | function styles = [[dfn]], [[tacit]] | ||
| numeric types = floats, extended precision floats, date, time, datetime | | numeric types = ints, floats, extended precision floats, date, time, datetime | ||
| unicode support = varies among implementations | | unicode support = varies among implementations | ||
| released = 1994 | | released = 1994 | ||
Revision as of 21:44, 30 October 2019
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 Stanly, 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 glyphs and limited arrays to (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") is the first K to have full Unicode support, and it also uses a limited set non-ASCII symbols in the core language, for example Ø and ∞.