finite difference

finite difference
noun Date: 1807 any of a sequence of differences obtained by incrementing successively the dependent variable of a function by a fixed amount; especially any of such differences obtained from a polynomial function using successive integral values of its dependent variable

New Collegiate Dictionary. 2001.

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  • Finite difference — A finite difference is a mathematical expression of the form f(x + b) − f(x + a). If a finite difference is divided by b − a, one gets a difference quotient. The approximation of derivatives by finite differences… …   Wikipedia

  • finite difference — Math. difference (def. 9c). [1800 10] * * * …   Universalium

  • finite difference — noun A difference between the value of a function evaluated at a number, and the value of the same function evaluated at a different number, a fixed distance from the first …   Wiktionary

  • finite difference — noun : any of a sequence of differences of the general form f(x + nh) f(x + (n 1)h) obtained by incrementing successively the dependent variable of the function f(x) by the amount h ; especially : any of such differences obtained from a… …   Useful english dictionary

  • Finite-difference time-domain method — Finite difference time domain (FDTD) is a popular computational electrodynamics modeling technique. It is considered easy to understand and easy to implement in software. Since it is a time domain method, solutions can cover a wide frequency… …   Wikipedia

  • Finite Difference Time Domain — (FDTD, englisch für Finite Differenzen Methode im Zeitbereich) ist ein mathematisches Verfahren zur direkten Integration zeitabhängiger Differentialgleichungen. Vor allem zur Berechnung der Lösungen der Maxwell Gleichungen wird dieses Verfahren… …   Deutsch Wikipedia

  • Finite difference method — In mathematics, finite difference methods are numerical methods for approximating the solutions to differential equations using finite difference equations to approximate derivatives. Intuitive derivation Finite difference methods approximate the …   Wikipedia

  • Finite-difference frequency-domain — The finite difference frequency domain (FDFD) is a numerical solution for problems usually in electromagnetism. The method is, of course, based on finite difference approximations of the derivative operators in the differential equation being… …   Wikipedia

  • finite difference method —    A numerical method used to approximate the solution of partial differential equations [16] …   Lexicon of Cave and Karst Terminology

  • Nonstandard finite difference scheme — Nonstandard finite difference schemes is a general set of methods in numerical analysis that gives numerical solutions to differential equations by constructing a discrete model. The general rules for such schemes are not precisely known.[1] [2]… …   Wikipedia

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