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circularly symmetric function

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  • Madison Symmetric Torus — Infobox Magnetic Fusion Device name = Madison Symmetric Torus dev type=Reversed field pinch loc=Madison, Wisconsin, USA rad maj = 1.50 m rad min = 52 cm aspect = 2.88|The Madison Symmetric Torus (MST) is a reversed field pinch (RFP) physics… …   Wikipedia

  • Abel transform — In mathematics, the Abel transform, named for Niels Henrik Abel, is an integral transform often used in the analysis of spherically symmetric or axially symmetric functions. The Abel transform of a function f ( r ) is given by::F(y)=2int y^infty… …   Wikipedia

  • Hankel transform — Besides the meaning discussed in this article, the Hankel transform may also refer to the determinant of the Hankel matrix of a sequence .In mathematics, the Hankel transform of order nu; of a function f ( r ) is given by::F u(k) = int 0^infty… …   Wikipedia

  • Projection-slice theorem — In mathematics, the projection slice theorem in two dimensionsstates that the Fourier transform of the projectionof a two dimensional function f (r) onto a lineis equal to a slice through the origin of the two dimensional Fourier transform of… …   Wikipedia

  • Doubly linked list — In computer science, a doubly linked list is a linked data structure that consists of a set of sequentially linked records called nodes. Each node contains two fields, called links, that are references to the previous and to the next node in the… …   Wikipedia

  • Gaussian blur — Gaussian blur, named for Carl Friedrich Gauss, describes blurring an image by a Gaussian function. It is a widely used effect in graphics software, typically to reduce image noise and reduce detail. The visual effect of this blurring technique is …   Wikipedia

  • Gravitational lensing formalism — In general relativity, a point mass deflects a light ray with impact parameter b by an angle hat{alpha} = frac{4GM}{c^2b}. A naïve application of Newtonian gravity can yield exactly half this value, where the light ray is assumed as a massed… …   Wikipedia

  • Sundial — A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the sun casts a shadow from its style (a thin rod or a sharp, straight edge) onto a flat surface marked with lines indicating… …   Wikipedia

  • Dirichlet Laplacian — refers to the mathematical problems with the Helmholtz equation (Delta + lambda) Psi =0 where Delta is the Laplace operator; in the two dimensional space, Delta=frac{partial^2}{partial x^2}+frac{partial^2}{partial y^2}differentiates with respect… …   Wikipedia

  • Dirichlet eigenvalue — In mathematics, the Dirichlet eigenvalues are the fundamental modes of vibration of an idealized drum with a given shape. The problem of whether one can hear the shape of a drum is: given the Dirichlet eigenvalues, what features of the shape of… …   Wikipedia

  • Cyclic order — In mathematics, a cyclic order is a way to arrange a set of objects in a circle.[nb] Unlike most structures in order theory, a cyclic order cannot be modeled as a binary relation a < b . One does not say that east is more clockwise than west.… …   Wikipedia

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