Polymorphic Programming Language: Difference between revisions

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The Polymorphic Programming Language (PPL) was developed in 1969 at Harvard University by Thomas A. Standish. It is an interactive, extensible language with a base language similar to the language APL.^[1]

The assignment operator <- (or ←) has influenced the language S.^[2]

References

^ Standish, Thomas A. (August 1969). Christensen; Shaw (eds.). "Some features of PPL – a Polymorphic Programming Language". ACM SIGPLAN Notices. 4 (8) (Proceedings of Extensible Language Symposium ed.). ACM Digital Library: Association for Computing Machinery: 20–26. doi:10.1145/1115858.1115864. Retrieved 2018-06-23.
^ Chambers, John M. (November 1994). "Evolution of the S Language". Archived from the original (PostScript) on 2007-04-09. Retrieved 2009-05-06.

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[1] Standish, Thomas A. (August 1969). Christensen; Shaw (eds.). "Some features of PPL – a Polymorphic Programming Language". ACM SIGPLAN Notices. 4 (8) (Proceedings of Extensible Language Symposium ed.). ACM Digital Library: Association for Computing Machinery: 20–26. doi:10.1145/1115858.1115864. Retrieved 2018-06-23.

[2] Chambers, John M. (November 1994). "Evolution of the S Language". Archived from the original (PostScript) on 2007-04-09. Retrieved 2009-05-06.

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 {{Short description|Interactive, extensible programming language type}}
 {{redir|PPL (programming language)|the Hewlett-Packard calculator language|HP PPL}}
-The '''Polymorphic Programming Language''' ('''PPL''') was developed in 1969 at [[Harvard University]] by Thomas A. Standish. It is an [[interactive computing|interactive]], [[extensible programming|extensible]] language with a [[base language]] similar to the language [[APL (programming language)|APL]].<ref>{{cite journal |last=Standish |first=Thomas A. |date=August 1969 |editor1-last=Christensen |editor2-last=Shaw |title=Some features of PPL – a Polymorphic Programming Language |url=http://portal.acm.org/citation.cfm?id=1115858.1115864&coll=GUIDE&dl=GUIDE |volume=4 |issue=8 |pages=20–26 |doi=10.1145/1115858.1115864 |access-date=2018-06-23 |journal=ACM SIGPLAN Notices |language=en |edition=Proceedings of Extensible Language Symposium |location=ACM Digital Library |publisher=[[Association for Computing Machinery]]}}</ref>
+The '''Polymorphic Programming Language''' ('''PPL''') was developed in 1969 at [[Harvard University]] by Thomas A. Standish. It is an [[interactive computing|interactive]], [[extensible programming|extensible]] language with a [[base language]] similar to the language [[APL (programming language)|APL]].<ref>{{cite journal |last=Standish |first=Thomas A. |date=August 1969 |editor1-last=Christensen |editor2-last=Shaw |title=Some features of PPL – a Polymorphic Programming Language |url=http://portal.acm.org/citation.cfm?id=1115858.1115864&coll=GUIDE&dl=GUIDE |volume=4 |issue=8 |pages=20–26 |doi=10.1145/1115858.1115864 |access-date=2018-06-23 |journal=ACM SIGPLAN Notices |language=en |edition=Proceedings of Extensible Language Symposium |location=ACM Digital Library |publisher=[[Association for Computing Machinery]]|url-access=subscription }}</ref>
 The [[Assignment (computer science)|assignment]] operator <code>&lt;-</code> (or <code>←</code>) has influenced the language [[S (programming language)|S]].<ref>{{cite web |url=http://cm.bell-labs.com/cm/ms/departments/sia/doc/96.7.ps |archive-url=https://web.archive.org/web/20070409042926/http://cm.bell-labs.com/cm/ms/departments/sia/doc/96.7.ps |url-status=dead |archive-date=2007-04-09 |title=Evolution of the S Language |last=Chambers |first=John M. |author-link=John Chambers (programmer) |date=November 1994 |access-date=2009-05-06 |format=PostScript}}</ref>