APL-sharp: Difference between revisions

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| developer                = [[Dyalog Ltd.]]
| developer                = [[Dyalog Ltd.]]
| license                  = Unavailable / Proprietary software
| license                  = Unavailable / Proprietary software
| implementation languages = [[wikipedia:C_Sharp_(programming_language)|C#]]
| implementation language  = [[wikipedia:C_Sharp_(programming_language)|C#]]
| platform                = [[wikipedia:Common Language Infrastructure|CLI]]
| platform                = [[wikipedia:Common Language Infrastructure|CLI]]
| operating systems        = Microsoft Windows, macOS, Symbian OS, Linux
| operating systems        = Microsoft Windows, macOS, Symbian OS, Linux
| influenced by            = [[APL2]], [[J]], [[Dyalog APL]], [[wikipedia:C_Sharp_(programming_language)|C#]]
| influenced by            = [[APL2]], [[J]], [[Dyalog APL]], [[wikipedia:C_Sharp_(programming_language)|C#]]
}}
}}
:''For technical reasons, "APL" redirects here. For an overview, see [[Overview]].''
'''APL#''' (pronounced ''APL Sharp'') was presented by [[Dyalog Ltd.]] at the 2010 [[APL conference]] in Berlin. The goal was to make the benefits of safe/managed computing available to users of APL through the development of an APL dialect targeting Microsoft Silverlight/Moonlight and featuring tight integration with Microsoft [[.NET]].
'''APL#''' (pronounced ''APL Sharp'') was presented by [[Dyalog Ltd.]] at the 2010 [[APL conference]] in Berlin. The goal was to make the benefits of safe/managed computing available to users of APL through the development of an APL dialect targeting Microsoft Silverlight/Moonlight and featuring tight integration with Microsoft [[.NET]].


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* [https://www.dyalog.com/uploads/conference/dyalog11/presentations/D08_apl_sharp/AplSharpCoreLanguage_Dyalog2011_Presentation.pdf APL# Core language]
* [https://www.dyalog.com/uploads/conference/dyalog11/presentations/D08_apl_sharp/AplSharpCoreLanguage_Dyalog2011_Presentation.pdf APL# Core language]


{{APL dialects}}
{{APL dialects}}[[Category:APL dialects]][[Category:Nested array languages]][[Category:.NET]]

Revision as of 09:57, 14 September 2022


For technical reasons, "APL" redirects here. For an overview, see Overview.

APL# (pronounced APL Sharp) was presented by Dyalog Ltd. at the 2010 APL conference in Berlin. The goal was to make the benefits of safe/managed computing available to users of APL through the development of an APL dialect targeting Microsoft Silverlight/Moonlight and featuring tight integration with Microsoft .NET.

APL# was to be a new dialect of APL designed with object-oriented/language-agnostic platforms in mind, using Microsoft .NET as the initial target platform. Although portability of old APL code to APL# was an important consideration, the fact that complete upwards compatibility with "classic" APL was not achievable allowed an attempt to tidy up a few other aspects of APL. The goal was to produce a language which was as powerful a Tool of Thought as classic APL and APL2, at the same time as feeling significantly more acceptable to a software engineer.

However, taking full advantage of the shared type system and related services which forced the abandoning some of the most central dogma of "classic" APL interpreters:

  • The notion that APL only has two data types: numbers and characters
  • That arguments are always passed "by value"
  • User-defined names are global by default, and local variables are visible to all sub-functions

APL# featured a single functional form (besides for trains) which was a hybrid between dfn and tradfn syntax, superficially resembling that of dfns, but allowing a header (calling signature) and control structures.

In 2012 Microsoft deprecated Silverlight for HTML5 in Windows 8, and Dyalog subsequently abandoned the APL# project.

External links

2010 APL conference

2011 Dyalog user meeting


APL dialects [edit]
Maintained APL+WinAPL2APL64APL\ivApletteAprilCo-dfnsDyalog APLDyalog APL Visiondzaima/APLGNU APLKapNARS2000Pometo
Historical A Programming LanguageA+ (A) ∙ APL#APL2CAPL\360APL/700APL\1130APL\3000APL.68000APL*PLUSAPL.jlAPL.SVAPLXExtended Dyalog APLIverson notationIVSYS/7090NARSngn/aplopenAPLOperators and FunctionsPATRowanSAXSHARP APLRationalized APLVisualAPL (APLNext) ∙ VS APLYork APL
Derivatives AHPLBQNCoSyELIGleeIIvyJJellyK (Goal, Klong, Q) ∙ KamilaLispLang5LilNialRADUiua
Overviews Comparison of APL dialectsTimeline of array languagesTimeline of influential array languagesFamily tree of array languages