A+ (programming language)
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- For information on the A+ computer certification program, see CompTIA.
| Paradigm: | array |
|---|---|
| Appeared in: | 1988 |
| Designed by: | Arthur Whitney |
| Developer: | Morgan Stanley |
| Typing discipline: | strong |
| Major implementations: | A+ |
| Influenced by: | APL |
| Influenced: | K |
A+ is an array programming language, a dialect of APL. Arthur Whitney and other developers at Morgan Stanley developed it for heavy numerical work, especially 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.
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.
The K programming language, also created by Arthur Whitney, is the successor to A+. 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.
[edit] External link
- A+ Development.org A+ is freely available under the GNU General Public License
