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J,

10th letter of the alphabetalphabet
[Gr. alpha-beta, like Eng. ABC], system of writing, theoretically having a one-for-one relation between character (or letter) and phoneme (see phonetics). Few alphabets have achieved the ideal exactness.
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, a Western European medieval development of I, with which it was formerly quite interchangeable in writing. It is pronounced as a consonant in English and often as a y in other languages, as in the Hebrew hallelujah.

J

(mechanics)

joule

A unit of energy or work; equals the work done by a force of 1 newton which acts over a distance of 1 metre in the direction of the force.

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 <hui@yrloc.ipsa.reuter.com>. 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].

J

A high-level mathematical programming language developed by Kenneth Iverson, the author of APL. J is the successor to APL and runs on a variety of platforms, including DOS, Windows, OS/2, Unix and the Macintosh. The Windows version can be used as a calculating engine for Visual Basic, in which Visual Basic is used to write the file handling and user interface portions, and J is used to program the math.
References in periodicals archive ?
class="MsoNormalThe hanging plants add an air of freshness to J's. PHOTO | ABIGAIL ARUNGA class="MsoNormalThe tartar sauce for the fish fingers was interesting, in that it had large sizeable chunks of vegetables that you could actually eat separate from the fish.
J's Designs project is run by designer and jewellery maker Jude Benhalim and her mother Rana Azm.
J's janitorial service entails cleaning grills, mopping floors, and scrubbing public bathrooms.
| THEFTS: J's Out Of School Club in Golcar where Linda Berry was treasurer
"Big Daddy J's is a malt liquor that is balanced, so the clean and drinkable smoothness makes that 8% alcohol go down easily," he said.
Murtagh subsequently lost his job as the Aga Khan's retained rider in Ireland, allowing Pat Shanahan to secure the rider's services for My Special J's. Harasiya, a 16-1 shot for the 1,000 Guineas, will be partnered by Pat Smullen.
The celebrity gossip website has obtained a letter from Ray J's lawyer to Vivid Entertainment's co-chairman Steve Hursch, making it clear that he has partial ownership of the video.
The mother was kept informed of these plans by J's social worker, although the written notification of the agency's decision was not handed to her until 3 September.
All of Flying J's operations, including approximately 250 travel plazas and fuel stops, are open and serving customers.
This will be J & J's second price increase in a six month period as it attempts to recover more of the commodity cost increases which have been impacting its margins.