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Meaning of J

Pronunciation:  jey

WordNet Dictionary
  1. [n]  the 10th letter of the Roman alphabet
  2. [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

J is a 1 letter word that starts with J.


 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
\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

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.

J-mode gnu emacs macros available by .

["APL\?", Roger K.W. Hui et al, APL90 Conf Proc, Quote Quad 20(4):192-200].