Dyalog APL: Difference between revisions

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| influenced              = [[NARS2000]], [[GNU APL]], [[ngn/apl]], [[dzaima/APL]], [[APL\iv]]
| influenced              = [[NARS2000]], [[GNU APL]], [[ngn/apl]], [[dzaima/APL]], [[APL\iv]]
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'''Dyalog APL''' was first released by British company [[Dyalog]] Ltd. in 1983 and, as of 2018, is available for AIX, Linux (including on the Raspberry Pi), macOS and Microsoft Windows platforms. It is based on [[APL2]], with extensions to support object-oriented programming and functional programming. Licences are free for personal/non-commercial use.
'''Dyalog APL''' was first released by British company [[Dyalog Ltd.|Dyadic Systems Ltd.]] (later Dyalog Ltd.) in 1983 for the Zylog Z80 processor. The name ''Dyalog'' is a portmanteau of ''Dyadic'' and ''Zylog''. As of 2018, Dyalog APL is available for AIX, Linux (including on the Raspberry Pi), macOS and Microsoft Windows platforms. While mainly based is based on [[APL2]], it adds support for both object-oriented, functional, and tacit programming. Dyalog APL also serves as the inspiration for many hobby implementations of APL. Dyalog APL is unique among commercial APLs in getting additional primitives and constructs.


In 1995, two of the development team — [[John Scholes]] and [[Peter Donnelly]] — were awarded the [[Iverson Award]] for their work on the interpreter. [[Gitte Christensen]] and [[Morten Kromberg]] were joint recipients of the Iverson Award in 2016.
In 1995, two of the development team — [[John Scholes]] and [[Peter Donnelly]] — were awarded the [[Iverson Award]] for their work on the interpreter. [[Gitte Christensen]] and [[Morten Kromberg]] were joint recipients of the Iverson Award in 2016.

Revision as of 20:00, 28 October 2019

Dyalog APL was first released by British company Dyadic Systems Ltd. (later Dyalog Ltd.) in 1983 for the Zylog Z80 processor. The name Dyalog is a portmanteau of Dyadic and Zylog. As of 2018, Dyalog APL is available for AIX, Linux (including on the Raspberry Pi), macOS and Microsoft Windows platforms. While mainly based is based on APL2, it adds support for both object-oriented, functional, and tacit programming. Dyalog APL also serves as the inspiration for many hobby implementations of APL. Dyalog APL is unique among commercial APLs in getting additional primitives and constructs.

In 1995, two of the development team — John Scholes and Peter Donnelly — were awarded the Iverson Award for their work on the interpreter. Gitte Christensen and Morten Kromberg were joint recipients of the Iverson Award in 2016.

The most important extensions to the original APL language include:

  • 1983: Nested arrays: Any element of an array can be another array (APL2)
  • 1990: Namespaces
  • 1995: Keywords (If/Then/Else, Repeat/Until, exception handling, and so on)
  • 1996: Functional programming: dfns provide lexical scope and Dfns
  • 2006: Object orientated programming, allowing integration with OO frameworks and Microsoft .NET
  • 2014: Point-free or "Train" syntax similar to that in the J programming language
  • 2014: Futures and isolates for Parallel computing

External links

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