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characteristic formula

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  • Formula Windsurfing — is a class of race windsurfing boards that has developed over the last 15 years in order to facilitate high performance competition in light and moderate winds. Formula Winsurfing Class is controlled by the International Sailing Federation. Large …   Wikipedia

  • Characteristic velocity — or c * is a measure of the combustion performance of a rocket engine independent of nozzle performance, and is used to compare different propellants and propulsion systems. Formula c * is the characteristic velocity (meters/second) p1 is the… …   Wikipedia

  • Characteristic function (probability theory) — The characteristic function of a uniform U(–1,1) random variable. This function is real valued because it corresponds to a random variable that is symmetric around the origin; however in general case characteristic functions may be complex valued …   Wikipedia

  • Characteristic equation (calculus) — In mathematics, the characteristic equation (or auxiliary equation[1]) is an algebraic equation of degree on which depends the solutions of a given th order differential equation.[2] The characteristic equation can only be formed when the… …   Wikipedia

  • Characteristic function — In mathematics, characteristic function can refer to any of several distinct concepts: The most common and universal usage is as a synonym for indicator function, that is the function which for every subset A of X, has value 1 at points of A and… …   Wikipedia

  • characteristic — Index In dex, n.; pl. E. {Indexes}, L. {Indices}(?). [L.: cf. F. index. See {Indicate}, {Diction}.] [1913 Webster] 1. That which points out; that which shows, indicates, manifests, or discloses; as, the increasing unemployment rate is an index of …   The Collaborative International Dictionary of English

  • Characteristic length — A characteristic length is an important dimension that defines the scale of a physical system. Often such a length is used as an input to a formula in order to predict some characteristics of the system. Examples: Reynolds number Biot number… …   Wikipedia

  • formula — Synonyms and related words: MO, Procrustean law, a priori truth, act, addend, antilogarithm, argument, axiom, base, bill, binomial, blueprint, brocard, bylaw, canon, ceremonial, ceremony, characteristic, code, coefficient, combination,… …   Moby Thesaurus

  • Euler characteristic — In mathematics, and more specifically in algebraic topology and polyhedral combinatorics, the Euler characteristic is a topological invariant, a number that describes one aspect of a topological space s shape or structure. It is commonly denoted… …   Wikipedia

  • Riemann-Hurwitz formula — In mathematics, the Riemann Hurwitz formula, named after Bernhard Riemann and Adolf Hurwitz, describes the relationship of the Euler characteristics of two surfaces when one is a ramified covering of the other. It therefore connects ramification… …   Wikipedia

  • Selberg trace formula — In mathematics, the Selberg trace formula is a central result, or area of research, in non commutative harmonic analysis. It provides an expression for the trace, in a sense suitably generalising that of the trace of a matrix, for suitable… …   Wikipedia

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