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'''John Morley Scholes''' (1948–2019) was a British computer scientist. His professional career was devoted to the development of APL. He was the first lead developer at what eventually became [[Dyalog Ltd.]] and kept working for the company until his death, since when he has dedicated himself to the art of writing perfect programs.<ref>[http://dfns.dyalog.com/n_beyond.htm ''The Beyond''], dfns workspace.</ref> He was the designer and implementer of [[Dyalog APL]]'s direct functions ([[dfn]]s, pronounced "dee funs"), a major distinguishing advance which was since copied by all new APLs; [[NARS2000]], [[GNU APL]], [[ngn/apl]], [[dzaima/APL]], etc. He also advocated for simplicity in computer systems.
'''John Morley Scholes''' (1948–2019) was a British computer scientist. His professional career was devoted to the development of APL. He was the first lead developer at what eventually became [[Dyalog Ltd.]] and kept working for the company until his death, since when he has dedicated himself to the art of writing perfect programs.<ref>[http://dfns.dyalog.com/n_beyond.htm ''The Beyond''], dfns workspace.</ref> He was the designer and implementer of [[Dyalog APL]]'s direct functions ([[dfn]]s, pronounced "dee funs"), a major distinguishing advance which was since copied by all new APLs; [[NARS2000]], [[GNU APL]], [[ngn/apl]], [[dzaima/APL]], etc. He also advocated for simplicity in computer systems.


In 2009, Scholes produced an explanatory video of his implementation of John Conway's "Game of Life". It has since gathered almost 200 000 views. He has also produced numerous, always well-received, presentation and papers on various subjects from the technical to the humorous.
In 1995 he and [[Pete Donnelly]] received the [[Iverson Award]] for their role in creating and promoting Dyalog APL.
 
In 2009, Scholes produced an explanatory video of his implementation of John Conway's "Game of Life". It has since gathered almost 200 000 views. He has also produced numerous, always well-received, presentation and papers on various subjects from the technical to the [[humor]]ous.


== Publications ==
== Publications ==
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* [https://doi.org/10.1145/75144.75159 "YSM: a full-screen manager for Dyalog APL"] at [[APL89]]. With S. D. Curtin.
* [https://doi.org/10.1145/75144.75159 "YSM: a full-screen manager for Dyalog APL"] at [[APL89]]. With S. D. Curtin.


=== Dyalog user meetings ===
=== Dyalog user meetings and webinar ===
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<div style="column-width:30em">
* [[Dyalog '06]] 04: Language Extensions
* [[Dyalog '06]] 04: Language Extensions
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* [[Dyalog '16]] D06: [https://dyalog.tv/Dyalog16/?v=vms4_Fpqmv8 New Primitive Functions and Operators] ([https://www.dyalog.com/uploads/conference/dyalog16/presentations/D06_New_Primitives_RH.zip materials], [https://www.dyalog.com/uploads/conference/dyalog16/presentations/D06_New_Primitives_JS.txt demo script]) (with [[Roger Hui]])
* [[Dyalog '16]] D06: [https://dyalog.tv/Dyalog16/?v=vms4_Fpqmv8 New Primitive Functions and Operators] ([https://www.dyalog.com/uploads/conference/dyalog16/presentations/D06_New_Primitives_RH.zip materials], [https://www.dyalog.com/uploads/conference/dyalog16/presentations/D06_New_Primitives_JS.txt demo script]) (with [[Roger Hui]])
*  Dyalog '16  L04: [https://dyalog.tv/Dyalog16/?v=WsmS4XBFvH0 Dyalog Implementation – The Early Years] (with Stephen Taylor and [[Geoff Streeter]])
*  Dyalog '16  L04: [https://dyalog.tv/Dyalog16/?v=WsmS4XBFvH0 Dyalog Implementation – The Early Years] (with Stephen Taylor and [[Geoff Streeter]])
* [[Dyalog webinar]]: [https://dyalog.tv/Webinar/?v=OeOpdGF1bnc A closer look at the new primitives in version 16.0] (with [[Morten Kromberg]])
* [[Dyalog '17]] D04: [https://dyalog.tv/Dyalog17/?v=74xrZkVlns0 A Case Study – Recoding from Procedural to Denotative Style] ([https://www.dyalog.com/uploads/conference/dyalog17/presentations/D04_Recoding_from_Procedural_to_Denotative_Style.pdf slides])
* [[Dyalog '17]] D04: [https://dyalog.tv/Dyalog17/?v=74xrZkVlns0 A Case Study – Recoding from Procedural to Denotative Style] ([https://www.dyalog.com/uploads/conference/dyalog17/presentations/D04_Recoding_from_Procedural_to_Denotative_Style.pdf slides])
*  Dyalog '17  D15: TAO – Total Array Ordering ([https://www.dyalog.com/uploads/conference/dyalog17/presentations/D15_TAO_of_Dyalog.zip materials]) (with [[Roger Hui]])
*  Dyalog '17  D15: TAO – Total Array Ordering ([https://www.dyalog.com/uploads/conference/dyalog17/presentations/D15_TAO_of_Dyalog.zip materials]) (with [[Roger Hui]])
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* [https://www.youtube.com/watch?v=a9xAKttWgP4 Video: ''Game of Life'']
* [https://www.youtube.com/watch?v=a9xAKttWgP4 Video: ''Game of Life'']
* [https://www.youtube.com/watch?v=DmT80OseAGs Video: ''A Sudoku Solver in APL'']
* [https://www.youtube.com/watch?v=DmT80OseAGs Video: ''A Sudoku Solver in APL'']
* [https://www.youtube.com/watch?v=DsZdfnlh_d0 Video: ''Depth-first search in APL'']
* [http://dfns.dyalog.com/downloads/howcomp.pdf Article: ''How to Write Computer Programs'']
* [http://dfns.dyalog.com/downloads/howcomp.pdf Article: ''How to Write Computer Programs'']
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</div>
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== References ==
== References ==
<references/>
<references/>
{{APL community}}{{DEFAULTSORT:Scholes}}[[Category:People]][[Category:Implementers]]
{{APL community}}{{DEFAULTSORT:Scholes}}[[Category:People]][[Category:Dyalog Ltd. employees]][[Category:Designers]][[Category:Executives]][[Category:Implementers]]

Revision as of 08:07, 15 April 2021

John Scholes

"Humour is but the exercise of abstraction."

John Scholes. Humour, dfns workspace.

John Morley Scholes (1948–2019) was a British computer scientist. His professional career was devoted to the development of APL. He was the first lead developer at what eventually became Dyalog Ltd. and kept working for the company until his death, since when he has dedicated himself to the art of writing perfect programs.[1] He was the designer and implementer of Dyalog APL's direct functions (dfns, pronounced "dee funs"), a major distinguishing advance which was since copied by all new APLs; NARS2000, GNU APL, ngn/apl, dzaima/APL, etc. He also advocated for simplicity in computer systems.

In 1995 he and Pete Donnelly received the Iverson Award for their role in creating and promoting Dyalog APL.

In 2009, Scholes produced an explanatory video of his implementation of John Conway's "Game of Life". It has since gathered almost 200 000 views. He has also produced numerous, always well-received, presentation and papers on various subjects from the technical to the humorous.

Publications

Dyalog user meetings and webinar

External links

Websites

Selected works

References

  1. The Beyond, dfns workspace.
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