https://wiki.tachyony.co.uk/w/index.php?action=history&feed=atom&title=Kent_Recursive_CalculatorKent Recursive Calculator - Revision history2026-07-06T18:09:27ZRevision history for this page on the wikiMediaWiki 1.44.0https://wiki.tachyony.co.uk/w/index.php?title=Kent_Recursive_Calculator&diff=26422&oldid=prev5.91.163.199: Oops, I haven't published the KRC version of the math library yet so drop that link2025-04-03T19:51:10Z<p>Oops, I haven't published the KRC version of the math library yet so drop that link</p>
<p><b>New page</b></p><div>{{Use dmy dates|date=April 2022}}<br />
{{Infobox programming language<br />
| name = KRC<br />
| logo =<br />
| paradigm = [[Functional programming|Functional]]<br />
| year = {{Start date and age|1981}}<br />
| designer = [[David Turner (computer scientist)|David Turner]]<br />
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| influenced_by = [[SASL (programming language)|SASL]]<br />
| influenced = [[Miranda programming language|Miranda]]<br />
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'''KRC''' ('''Kent Recursive Calculator''') is a [[lazy evaluation|lazy]] [[functional language]] developed by [[David Turner (computer scientist)|David Turner]] from November 1979 to October 1981<ref>Dates in the commentary to the BCPL KRC source code for EMAS.</ref> based on [[SASL programming language|SASL]], with [[pattern matching]], [[guard (computer science)|guard]]s and [[ZF expression]]s<ref>{{FOLDOC|Kent+Recursive+Calculator}}</ref> (now more usually called [[list comprehensions]]). Two implementations of KRC were written: David Turner's original one in [[BCPL]] running on [[Edinburgh Multiple Access System|EMAS]], and Simon J. Croft's later one in [[C (programming language)|C]] under [[Unix]], and KRC was the main language used for teaching functional programming at the [[University of Kent]] at Canterbury (UK) from 1982 to 1985.<br />
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The direct successor to KRC is [[Miranda programming language|Miranda]], which includes a polymorphic type discipline based on that of Milner's [[ML (programming language)|ML]].<br />
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==References==<br />
{{Reflist}}<br />
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==Further reading==<br />
* ''[https://books.google.com/books?id=O_M8AAAAIAAJ&q=KRC Functional Programming and its Applications]'', David A. Turner, Cambridge U Press 1982.<br />
* {{cite book|last=Turner|first=D.A.|year=1981|chapter=The semantic elegance of Applicative Languages|title=Proceedings of the 1981 Conference on Functional Programming Languages and Computer Architecture |pages=85–92 |publisher=[[Association for Computing Machinery]] |isbn=0-89791-060-5}}<br />
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==External links==<br />
* [http://www.krc-lang.org KRC's home page]<br />
* [https://codeberg.org/DATurner/KRC Its open source interpreter for Unix], based on Professor Turner's 1982 version for EMAS<br />
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{{Programming language}}<br />
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[[Category:Functional languages]]<br />
[[Category:History of computing in the United Kingdom]]<br />
[[Category:University of Kent]]<br />
[[Category:Programming languages created in 1981]]<br />
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