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Англо-русский словарь компьютерных и интернет терминов. 2013.
group by from
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Group dynamics — is the study of groups, and also a general term for group processes. Relevant to the fields of psychology, sociology, and communication studies, a group is two or more individuals who are connected to each other by social relationships. [Forsyth … Wikipedia
Group delay and phase delay — Group delay is a measure of the time delay of the amplitude envelopes of the various sinusoidal components of a signal through a device under test, and is a function of frequency for each component. Phase delay is a similar measure of the time… … Wikipedia
Group Captain — (Gp Capt in the RAF and Indian Air Force, GPCAPT in the RNZAF and RAAF, G/C in the former RCAF) is a senior commissioned rank in the Royal Air Force [cite web |url=http://www.raf.mod.uk/structure/commissionedranks.cfm |title=Ranks and Badges of… … Wikipedia
group — (n.) 1690s, originally an art criticism term, assemblage of figures or objects in a painting or design, from Fr. groupe cluster, group (17c.), from It. gruppo group, knot, perhaps ultimately from P.Gmc. *kruppaz round mass, lump, and related to… … Etymology dictionary
Group races — are the highest standard of thoroughbred horserace in Australia. The Australian Pattern Committee recommends to the Australian Racing Board (ARB) which races shall be designated as Group races. The list of races approved by the ARB are accepted… … Wikipedia
Group (mathematics) — This article covers basic notions. For advanced topics, see Group theory. The possible manipulations of this Rubik s Cube form a group. In mathematics, a group is an algebraic structure consisting of a set together with an operation that combines … Wikipedia
Group action — This article is about the mathematical concept. For the sociology term, see group action (sociology). Given an equilateral triangle, the counterclockwise rotation by 120° around the center of the triangle acts on the set of vertices of the… … Wikipedia
Group representation — In the mathematical field of representation theory, group representations describe abstract groups in terms of linear transformations of vector spaces; in particular, they can be used to represent group elements as matrices so that the group… … Wikipedia
Group isomorphism — In abstract algebra, a group isomorphism is a function between two groups that sets up a one to one correspondence between the elements of the groups in a way that respects the given group operations. If there exists an isomorphism between two… … Wikipedia
Group homomorphism — In mathematics, given two groups ( G , *) and ( H , ·), a group homomorphism from ( G , *) to ( H , ·) is a function h : G → H such that for all u and v in G it holds that: h(u*v) = h(u) h(v) where the group operation on the left hand side of the … Wikipedia
Group velocity — [ Frequency dispersion in bichromatic groups of gravity waves on the surface of deep water. The red dot moves with the phase velocity, and the green dots propagate with the group velocity. In this deep water case, the phase velocity is twice the… … Wikipedia
