J - Definition

Meaning of J

Pronunciation:		jey
WordNet Dictionary

	Definition:	[n] the 10th letter of the Roman alphabet [n] a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second

	Websites:

	Synonyms:	joule, watt second

	See Also:	alphabetic character, energy unit, erg, heat unit, letter, letter of the alphabet, Roman alphabet, work unit

Webster's 1913 Dictionary

	Definition:	\J\ (j[=a]). J is the tenth letter of the English alphabet. It is a later variant form of the Roman letter I, used to express a consonantal sound, that is, originally, the sound of English y in yet. The forms J and I have, until a recent time, been classed together, and they have been used interchangeably. Note: In medical prescriptions j is still used in place of i at the end of a number, as a Roman numeral; as, vj, xij. J is etymologically most closely related to i, y, g; as in jot, iota; jest, gesture; join, jugular, yoke. See {I}. J is a compound vocal consonant, nearly equivalent in sound to dzh. It is exactly the same as g in gem. See Guide to Pronunciation, [sect][sect] 179, 211, 239.

Computing Dictionary

	Definition:	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 <[email protected]>. 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. J-mode GNU Emacs macros available by . ["APL\?", Roger K.W. Hui et al, APL90 Conf Proc, Quote Quad 20(4):192-200].

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