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APL (named after the book A Programming Language) [3] is a programming language developed in the 1960s by Kenneth E. Iverson. Its central datatype is the multidimensional array . It uses a large range of special graphic symbols [ 4 ] to represent most functions and operators, leading to very concise code.
In APL the precedence hierarchy for functions or operators is strictly positional: expressions are evaluated right-to-left. APL does not follow the usual operator precedence of other programming languages; for example, × does not bind its operands any more "tightly" than +. Instead of operator precedence, APL defines a notion of scope.
Download as PDF; Printable version; In other projects ... Pages in category "APL programming language family" The following 18 pages are in this category, out of 18 ...
The J programming language, developed in the early 1990s by Kenneth E. Iverson and Roger Hui, [5] [6] is an array programming language based primarily on APL (also by Iverson). To avoid repeating the APL special-character problem, J uses only the basic ASCII character set, resorting to the use of the dot and colon as inflections [ 7 ] to form ...
The algorithm works by sorting the rows individually ({⍵ [⍋ ⍵]} ⍤ 1 ⊢ a), and these sorted rows are used as keys ("signature" in the Programming Pearls description) to the key operator ⌸ to group the rows of the matrix. [9]: §3.3 The expression on the right is a train, a syntactic form employed by APL to achieve tacit programming.
The APL Character Set for Workspace Interchange, registered for use with ISO/IEC 2022 as ISO-IR-68, [1] is a character set developed by the APL Working Group of the Canadian Standards Association. [2]
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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 ...