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Hui was born in Hong Kong in 1953. In 1966, he immigrated to Canada with his entire family. [3]In 1973, Hui entered the University of Alberta.In his second year he took a course on probability and statistics in which students were expected to learn the programming language APL with little or no formal instruction.
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 ...
GNU APL is a free implementation of Extended APL as specified in ISO/IEC 13751:2001 and is thus an implementation of APL2. It runs on Linux, macOS, several BSD dialects, and on Windows (either using Cygwin for full support of all its system functions or as a native 64-bit Windows binary with some of its system functions missing).
When APL\360 was first introduced in 1968, there were no built-in means by which a user could directly access data from outside of the APL system. Thus, starting in 1969, IBM developed the shared variable facility. [2] Following APL.SV, the IBM VS APL and APL2 program products also supported shared variables, as did the IBM 5100 line of computers.
Dyalog APL: Dyalog Ltd. 1981 1983 18.0 10 June 2020: Not free (commercial), Free (non-commercial) Proprietary: A modern dialect of APL, enhanced with features for functional and object-oriented programming. Euler Math Toolbox: René Grothmann 1987 1988 2022-02-10 10 February 2022: Free GPL: Also a computer algebra system through interface with ...
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 ...
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.
Scientific Time Sharing Corporation's former headquarters in Washington, D.C.. Scientific Time Sharing Corporation (STSC) was formed in 1969 in Bethesda, Maryland by Dan Dyer, Burton C. Gray, and some of the people who originally implemented the programming language APL, notably Philip S. Abrams, Lawrence M. Breed, and Allen Rose. [3]