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delta |
8 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Delta \Del"ta\, n.; pl {Deltas}. [Gr. de`lta, the name of the fourth letter of the Greek alphabet (the capital form of which is [Delta], Eng. D), from the Ph[oe]nician name of the corresponding letter. The Greeks called the alluvial deposit at the mouth of the Nile, from its shape, the Delta of the Nile.] A tract of land shaped like the letter delta ([Delta]), especially when the land is alluvial and inclosed between two or more mouths of a river; as the delta of the Ganges, of the Nile, or of the Mississippi. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Delta \Del"ta\, n. 1. The fourth letter of the Greek alphabet ([Delta] [delta]), answering to {D}. Hence an object having the shape of the capital [Delta]. 2. (Elec.) The closed figure produced by connecting three coils or circuits successively, end for end esp. in a three-phase system; -- often used attributively, as delta winding, delta connection (which see), etc From WordNet r 1.6 [wn]: delta n 1: a low triangular area where a river divides before entering a larger body of water 2: the 4th letter of the Greek alphabet From U.S. Gazetteer (1990) [gazetteer]: Delta, AL Zip code(s): 36258 Delta, CO (city, FIPS 19850) Location: 38.74477 N, 108.07369 W Population (1990): 3789 (1842 housing units) Area: 7.1 sq km (land), 0.4 sq km (water) Zip code(s): 81416 Delta, IA (city, FIPS 19855) Location: 41.32307 N, 92.32945 W Population (1990): 409 (198 housing units) Area: 2.6 sq km (land), 0.0 sq km (water) Zip code(s): 52550 Delta, KY Zip code(s): 42613 Delta, LA (village, FIPS 20330) Location: 32.32384 N, 90.92323 W Population (1990): 234 (104 housing units) Area: 6.7 sq km (land), 0.4 sq km (water) Delta, MO (city, FIPS 19072) Location: 37.19816 N, 89.73703 W Population (1990): 450 (184 housing units) Area: 0.7 sq km (land), 0.0 sq km (water) Zip code(s): 63744 Delta, OH (village, FIPS 21616) Location: 41.57412 N, 84.00253 W Population (1990): 2849 (1107 housing units) Area: 5.6 sq km (land), 0.0 sq km (water) Zip code(s): 43515 Delta, PA (borough, FIPS 18800) Location: 39.72605 N, 76.32774 W Population (1990): 761 (305 housing units) Area: 0.7 sq km (land), 0.0 sq km (water) Zip code(s): 17314 Delta, UT (city, FIPS 18910) Location: 39.35329 N, 112.56566 W Population (1990): 2998 (1012 housing units) Area: 7.6 sq km (land), 0.0 sq km (water) Zip code(s): 84624 Delta, WI Zip code(s): 54856 From Jargon File (4.2.3, 23 NOV 2000) [jargon]: delta n. 1. [techspeak] A quantitative change, especially a small or incremental one (this use is general in physics and engineering). "I just doubled the speed of my program!" "What was the delta on program size?" "About 30 percent." (He doubled the speed of his program, but increased its size by only 30 percent.) 2. [Unix] A {diff}, especially a {diff} stored under the set of version-control tools called SCCS (Source Code Control System) or RCS (Revision Control System). 3. n. A small quantity, but not as small as {epsilon}. The jargon usage of {delta} and {epsilon} stems from the traditional use of these letters in mathematics for very small numerical quantities, particularly in `epsilon-delta' proofs in limit theory (as in the differential calculus). The term {delta} is often used once {epsilon} has been mentioned, to mean a quantity that is slightly bigger than {epsilon} but still very small "The cost isn't epsilon, but it's delta" means that the cost isn't totally negligible, but it is nevertheless very small Common constructions include `within delta of --', `within epsilon of --': that is `close to' and `even closer to'. From The Free On-line Dictionary of Computing (13 Mar 01) [foldoc]: Delta1. An expression-based language developed by J.C. Cleaveland in 1978. 2. A string-processing language with single-character commands from {Tandem Computers}. 3. A language for system specification of simulation execution. ["System Description and the DELTA Language", E. Holback-Hansen et al DELTA Proj Rep 4, Norweg Comput Ctr, Feb 1977]. 4. A {COBOL} generating language produced by {Delta Software Entwicklung GmbH (http://www.delta-software.de/)}. (2000-08-02) From The Free On-line Dictionary of Computing (13 Mar 01) [foldoc]: delta 1. A quantitative change, especially a small or incremental one (this use is general in physics and engineering). "I just doubled the speed of my program!" "What was the delta on program size?" "About 30 percent." (He doubled the speed of his program, but increased its size by only 30 percent.) 2. [Unix] A {diff}, especially a {diff} stored under the set of version-control tools called SCCS (Source Code Control System) or RCS (Revision Control System). See {change management}. 3. A small quantity, but not as small as {epsilon}. The jargon usage of {delta} and {epsilon} stems from the traditional use of these letters in mathematics for very small numerical quantities, particularly in "epsilon-delta" proofs in limit theory (as in the differential calculus). The term {delta} is often used once {epsilon} has been mentioned, to mean a quantity that is slightly bigger than {epsilon} but still very small "The cost isn't epsilon, but it's delta" means that the cost isn't totally negligible, but it is nevertheless very small Common constructions include "within delta of ---", "within epsilon of ---": that is "close to" and "even closer to". [{Jargon File}] (2000-08-02) From V.E.R.A. -- Virtual Entity of Relevant Acronyms 13 March 2001 [vera]: DELTA Developing European Learning through Technology Advance
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