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Dyalog APL was first released by British company Dyalog Ltd. [107] in 1983 [108] 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, [109] functional programming, [110] and tacit programming. [111]
Also note the keyboard had some 55 unique (68 listed per tables above, including comparative symbols but several symbols appear in both monadic and dyadic tables) APL symbol keys (55 APL functions (operators) are listed in IBM's 5110 APL Reference Manual), thus with the use of alt, shift and ctrl keys - it would theoretically have allowed a ...
In 1982, he started the Dyalog APL project for Unix machines, [5] [6] and in 1988 became a partner and director of the Dyalog Company. In 2004, Scholes sold his shares in the company, but continued as a consultant and, in his words, pursued his passionate interest in APL programming on various mathematical topics in general and functional ...
As of 2010, Unicode allows APL to be stored in text files, published in print and on the web, and shared through email and instant messaging. Entering APL characters still requires the use of either a specific input method editor or keyboard mapping, or of a specific touch interface. APL keyboard mappings are available for free for the most ...
Robert (Bob) Bernecky is a Canadian computer scientist notable as a designer and implementer of APL. His APL career started at I.P. Sharp Associates (IPSA) in 1971. [1] Bernecky's first published APL work concerned with speeding up the iota and epsilon (index-of and membership) primitives functions by orders of magnitude. [2]
Kenneth Eugene Iverson (17 December 1920 – 19 October 2004) was a Canadian computer scientist noted for the development of the programming language APL.He was honored with the Turing Award in 1979 "for his pioneering effort in programming languages and mathematical notation resulting in what the computing field now knows as APL; for his contributions to the implementation of interactive ...
In the early 1990s, Ken Iverson and Hui began collaborating on an advanced continuation of an APL-like language which they named J.The improvements were intended to fix some of the persistent character set issues that had plagued APL since its inception, and to add new advanced features such as support for parallel multiple instruction, multiple data (MIMD) operations.
In 1996, John Scholes of Dyalog Limited invented direct functions (dfns). [1] [6] [7] The ideas originated in 1989 when he read a special issue of The Computer Journal on functional programming. [33] He then proceeded to study functional programming and became strongly motivated ("sick with desire", like Yeats) to bring these ideas to APL.