J
Technology Dictionary -> JSearch:
J
A derivative and redesign of APL with added features and
control structures. J is purely functional with lexical
scope and more conventional control structures, plus several
new concepts such as function rank and function arrays. J
was designed and developed by Kennneth E. Iverson and Roger
Hui
. J uses only the ASCII
character set but has a spelling scheme that retains the
advantages of APL's special alphabet. J is a conventional
procedural programming language but can be used as a purely
functional language.
Version 4.1 for MS-DOS, Sun, Mac, Archimedes. Source
available in C from Iverson Software, +1 (416) 925 6096.
Version 6 package from ISI includes an interpreter and
tutorial. Ported to DEC, NeXT, SGI, Sun-3, Sun-4,
Vax, RS/6000, MIPS, Macintosh, Acorn Archimedes,
IBM PC, Atari, 3b1, Amiga.
(ftp://watserv1.waterloo.edu/languages/apl/j).
J-mode GNU Emacs macros available by
(ftp://think.com/pub/j/gmacs/j-interaction-mode.el).
["APL?", Roger K.W. Hui et al, APL90 Conf Proc, Quote Quad
20(4):192-200].
(1992-10-31)