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Dyalog APL: Difference between revisions
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Released at [[APL83]], Dyalog sold very few copies due to the lack of interest in either Unix or the nested array model. Subsequent sales were also limited, with only a single licence sold through Zilog partly due to the Z8000's limited popularity. Supported by Dyadic's APL consulting and later by sales of Unix hardware, Scholes and Streeter continued work on Dyalog by porting it to a wide variety of Unix systems in response to requests from users; in 1995, Scholes was awarded the [[Iverson Award]] jointly with [[Peter Donnelly]] for his work on the Dyalog interpreter. Although it continued to run significant losses every year, Dyalog slowly acquired users during the 1980s, including current client [[wikipedia:SimCorp|SimCorp]]. In 1991, Dyadic hired [[John Daintree]] to begin work on the <source lang=apl inline>⎕WC</source> graphical user interface for [[wikipedia:Microsoft Windows|Microsoft Windows]]; Dyalog for Windows debuted at [[APL92]] and quickly become Dyalog's main platform.<ref name="taylor"/> | Released at [[APL83]], Dyalog sold very few copies due to the lack of interest in either Unix or the nested array model. Subsequent sales were also limited, with only a single licence sold through Zilog partly due to the Z8000's limited popularity. Supported by Dyadic's APL consulting and later by sales of Unix hardware, Scholes and Streeter continued work on Dyalog by porting it to a wide variety of Unix systems in response to requests from users; in 1995, Scholes was awarded the [[Iverson Award]] jointly with [[Peter Donnelly]] for his work on the Dyalog interpreter. Although it continued to run significant losses every year, Dyalog slowly acquired users during the 1980s, including current client [[wikipedia:SimCorp|SimCorp]]. In 1991, Dyadic hired [[John Daintree]] to begin work on the <source lang=apl inline>⎕WC</source> graphical user interface for [[wikipedia:Microsoft Windows|Microsoft Windows]]; Dyalog for Windows debuted at [[APL92]] and quickly become Dyalog's main platform.<ref name="taylor"/> | ||
In 1996, John Scholes introduced a new form of functional definition to Dyalog based on his studies of the functional programming language [[wikipedia:Scheme (programming language)|Scheme]], which he called [[dfn]]s, for "direct functions". Rarely used for many years, dfns have become a common APL feature, with many newer APLs removing traditional [[defined function]]s from the language in favour of dfns. Another major addition to the language began in 2000, when John Daintree was invited to participate in the design of Microsoft's [[.NET]]. Based on this work, and the [[namespace]]s which he had added to the language in 1994, Daintree developed an [[Object-oriented programming|object]] model for Dyalog, which was released in 2006. These efforts also led to the new language | In 1996, John Scholes introduced a new form of functional definition to Dyalog based on his studies of the functional programming language [[wikipedia:Scheme (programming language)|Scheme]], which he called [[dfn]]s, for "direct functions". Rarely used for many years, dfns have become a common APL feature, with many newer APLs removing traditional [[defined function]]s from the language in favour of dfns. Another major addition to the language began in 2000, when John Daintree was invited to participate in the design of Microsoft's [[.NET]]. Based on this work, and the [[namespace]]s which he had added to the language in 1994, Daintree developed an [[Object-oriented programming|object]] model for Dyalog, which was released in 2006. These efforts also led to the new language called [[APL#]], which was first released in 2010 but abandoned in 2012 when Microsoft deprecated [[wikipedia:Microsoft Silverlight|Silverlight]]. | ||
In the 2010s, Dyalog development began to focus on performance, which had been improved out of necessity in early releases but had not been a major focus. In 2010 Dyalog Ltd. hired [[Jay Foad]], a compiler developer who initially created a bytecode compiler for APL and later improved performance in other ways, and served as CTO from 2016 until his departure in 2019. In 2011 the company hired [[Roger Hui]], developer of [[J]], and in 2016 it also hired J programmer and language implementor [[Marshall Lochbaum]]. Both developers improved performance of Dyalog's primitives on flat arrays, and brought concepts such as the [[Rank operator]], [[train]]s, and composition operators [[Atop]] and [[Over]] from J to APL. | In the 2010s, Dyalog development began to focus on performance, which had been improved out of necessity in early releases but had not been a major focus. In 2010 Dyalog Ltd. hired [[Jay Foad]], a compiler developer who initially created a bytecode compiler for APL and later improved performance in other ways, and served as CTO from 2016 until his departure in 2019. In 2011 the company hired [[Roger Hui]], developer of [[J]], and in 2016 it also hired J programmer and language implementor [[Marshall Lochbaum]]. Both developers improved performance of Dyalog's primitives on flat arrays, and brought concepts such as the [[Rank operator]], [[train]]s, and composition operators [[Atop]] and [[Over]] from J to APL. | ||