Derived Deformation Theory
Derive may refer to: *Derive (computer algebra system), a commercial system made by Texas Instruments * ''Dérive'' (magazine), an Austrian science magazine on urbanism *Dérive, a psychogeographical concept See also * * Derivation (other) *Derivative (other) The derivative of a function is the rate of change of the function's output relative to its input value. Derivative may also refer to: In mathematics and economics * Brzozowski derivative in the theory of formal languages * Formal derivative, an ...

Derive (computer Algebra System)
Derive was a computer algebra system, developed as a successor to muMATH by the Soft Warehouse in Honolulu, Hawaii, now owned by Texas Instruments. Derive was implemented in , also by Soft Warehouse. The first release was in 1988 for DOS. It was discontinued on June 29, 2007 in favor of the TI-Nspire CAS. The last and final version is Derive 6.1 for Windows. Since Derive required comparably little memory, it was suitable for use on older and smaller machines. It was available for the DOS and Windows platforms and was used also in TI pocket calculators. Books * * Jerry Glynn, ''Exploring Math from Algebra to Calculus with Derive, A Mathematical Assistant'', Mathware Inc, 1992, * Leon Magiera, ''General Physics Problem Solving With Cas Derive'', Nova Science Pub Inc 2001, * Vladimir Dyakonov. ''Handbook on application system Derive''. Moscow (Russia) 1996, Phismatlit, 320 p, * Vladimir Dyakonov. ''Computers algebra systems Derive''. Moscow (Russia) 2002, SOLON-R, 320 p, ...
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Dérive (magazine)
''dérive – Zeitschrift für Stadtforschung'' is an Austrian science magazine on urbanism. History and profile ''dérive'' is published quarterly since 2000 by the Vienna based ''Verein für Stadtforschung''. The journal publishes articles from a broad range of urbanism disciplines such as architecture, urban and land-use planning, art, geography, sociology, or philosophy. Articles from urban sociology include contributions from Loïc Wacquant and Saskia Sassen. Name Dérive is a concept of psychogeography that includes unplanned journeys through urban space. The individual travels where the subtle aesthetic contours of the surrounding architecture and geography subconsciously direct them, with the ultimate goal of encountering an entirely new and authentic experience. Networks The magazine is part of the European network of cultural magazines Eurozine. Urbanize The journal also hosts the annual festival urbanize on urban issues. See also * List of magazines in Aus ...
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Dérive
The ''dérive'' (, "drift") is a revolutionary strategy originally put forward in the "Theory of the Dérive" (1956) by Guy Debord, a member at the time of the Letterist International. Debord defines the ''dérive'' as "a mode of experimental behaviour linked to the conditions of urban society: a technique of rapid passage through varied ambiances." It is an unplanned journey through a landscape, usually urban, in which participants drop their everyday relations and "let themselves be drawn by the attractions of the terrain and the encounters they find there". Though solo ''dérives'' are possible, Debord indicates that the most fruitful numerical arrangement consists of several small groups of two or three people who have reached the same level of awareness, since cross-checking these different groups' impressions makes it possible to arrive at more objective conclusions.The ''dérive'' goals include studying the terrain of the city (psychogeography) and emotional disorientat ...
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Derivation (other)
Derivation may refer to: Language * Morphological derivation, a word-formation process * Parse tree or concrete syntax tree, representing a string's syntax in formal grammars Law * Derivative work, in copyright law * Derivation proceeding, a proceeding in United States patent law Music * The creation of a derived row, in the twelve-tone musical technique Science and mathematics * Derivation (differential algebra), a unary function satisfying the Leibniz product law * Formal proof or derivation, a sequence of sentences each of which is an axiom or follows from the preceding sentences in the sequence by a rule of inference * An after-the-fact justification for an action, in the work of sociologist Vilfredo Pareto See also *Derive (other), for meanings of "derive" and "derived" *Derivative In mathematics, the derivative of a function of a real variable measures the sensitivity to change of the function value (output value) with respect to a change in its argument ...
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