A+ (programming language)
- A+ (programming language)
:"For information on the A+ computer certification program, see CompTIA."
Infobox programming language
name = A+
paradigm = array
year = 1988
designer = Arthur Whitney
developer = Morgan Stanley
latest release version = 4.20-2
latest release date = November 2006
typing = dynamic, strong
implementations = A+
dialects =
influenced_by = APL
influenced = K
A+ is an array programming language, a dialect of APL with aggressive extensions. Arthur Whitney developed the "A" portion of A+, while other developers at Morgan Stanley extended it, adding a graphical user interface and other language features. A+ was designed for numerically intensive applications, especially those found in financial applications. A+ runs on many Unix variants, including Linux. A+ is a high-level, interactive, interpreted language.
A+ provides an extended set of functions and operators, a graphical user interface with a wide selection of widgets, automatic synchronization of widgets and variables, asynchronous execution of functions associated with variables and events, dynamic loading of user compiled subroutines, and other features. A newer graphical user interface has not yet been ported to all supported platforms.
The A+ language implements the following changes to the APL language:
* an A+ function may have up to 10 formal parameters
* A single A+ code statement may be broken up into two or more physical lines
* Typing the function's name in the session invokes the editor
Interactive A+ development is primarily done in the Xemacs editor, through extensions to the editor. Because A+ code uses the original APL symbols, displaying A+ requires a font with those special characters; a font called "kapl" is provided on the web site for that purpose.
Arthur Whitney went on to create the K programming language, a proprietary array language. Like the J programming language, K dispenses with the APL character set. It does not have some of the perceived complexities of A+, such as the existence of statements and two different modes of syntax.
A+ is licensed under the GNU General Public License.
External links
* [http://www.aplusdev.org/ A+ Development.org] A+ is freely available under the GNU General Public License
Wikimedia Foundation.
2010.
Look at other dictionaries:
Programming language — lists Alphabetical Categorical Chronological Generational A programming language is an artificial language designed to communicate instructions to a machine, particularly a computer. Programming languages can be used to create programs that… … Wikipedia
Programming language theory — (commonly known as PLT) is a branch of computer science that deals with the design, implementation, analysis, characterization, and classification of programming languages and programming language features. It is a multi disciplinary field, both… … Wikipedia
Programming Language Design and Implementation — (PLDI) is one of the ACM SIGPLAN s most important conferences. The precursor of PLDI was the Symposium on Compiler Optimization, held July 27–28, 1970 at the University of Illinois at Urbana Champaign and chaired by Robert S. Northcote. That… … Wikipedia
Programming Language for Business — or PL/B is a business oriented programming language originally called DATABUS and designed by Datapoint in the early 1970s as an alternative to COBOL because its 8 bit computers could not fit COBOL into their limited memory, and because COBOL did … Wikipedia
programming language — ➔ language * * * programming language UK US noun [C] ► COMPUTER LANGUAGE(Cf. ↑computer language) … Financial and business terms
programming language — Language Lan guage, n. [OE. langage, F. langage, fr. L. lingua the tongue, hence speech, language; akin to E. tongue. See {Tongue}, cf. {Lingual}.] [1913 Webster] 1. Any means of conveying or communicating ideas; specifically, human speech; the… … The Collaborative International Dictionary of English
Programming Language One — Programming Language One, oft als PL/I (auch PL/1, PL1 oder PLI) abgekürzt ist eine Programmiersprache, die in den 1960er Jahren von IBM entwickelt wurde. Die Bezeichnung PL/1 ist vor allem in Deutschland gebräuchlich. Ursprünglich wurde PL/I… … Deutsch Wikipedia
Programming Language 1 — noun A computer programming language which combines the best qualities of commercial and scientific oriented languages (abbrev PL/1) • • • Main Entry: ↑programme … Useful english dictionary
Programming Language — [engl.], Programmiersprache … Universal-Lexikon
Programming language specification — A programming language specification is an artifact that defines a programming language so that users and implementors can agree on what programs in that language mean.A programming language specification can take several forms, including the… … Wikipedia
programming language — noun (computer science) a language designed for programming computers • Syn: ↑programing language • Topics: ↑computer science, ↑computing • Hypernyms: ↑artificial language … Useful english dictionary
