gradient of a function

См. также в других словарях:

• Gradient — In vector calculus, the gradient of a scalar field is a vector field which points in the direction of the greatest rate of increase of the scalar field, and whose magnitude is the greatest rate of change.A generalization of the gradient for… …   Wikipedia

• Gradient descent — For the analytical method called steepest descent see Method of steepest descent. Gradient descent is an optimization algorithm. To find a local minimum of a function using gradient descent, one takes steps proportional to the negative of the… …   Wikipedia

• gradient — /gray dee euhnt/, n. 1. the degree of inclination, or the rate of ascent or descent, in a highway, railroad, etc. 2. an inclined surface; grade; ramp. 3. Physics. a. the rate of change with respect to distance of a variable quantity, as… …   Universalium

• Gradient noise — is a type of noise commonly used as a procedural texture primitive in computer graphics. It is conceptually different, and often confused with value noise. This method consists of a creation of a lattice of random gradients, which are then… …   Wikipedia

• gradient — [grā′dē ənt] adj. [L gradiens (gen. gradientis), prp. of gradi, to step: see GRADE] ascending or descending with a uniform slope n. 1. a) a slope, as of a road or railroad b) the degree of such slope 2. Biol. a gradation in rate of growth,… …   English World dictionary

• Gradient copolymers — Copolymers are polymers that are synthesized with more than one kind of repeat unit (or monomer). A gradient copolymer has gradient in repeat units arranged from mostly monomer A to mostly monomer B along much or all of the copolymer… …   Wikipedia

• Gradient Networks — Motivation Real world networks evolve to fulfill a main function, which is often to transport entities such as information, cars, power, water, etc. All these large scale networks metioned above are non globally designed. They evolve and grow… …   Wikipedia

• Gradient conjugué — Méthode du gradient conjugué En analyse numérique, la méthode du gradient conjugué est un algorithme pour résoudre des systèmes d équations linéaires dont la matrice est symétrique et définie positive. Cette méthode est une méthode itérative. La… …   Wikipédia en Français

• Gradient-related — A gradient related direction is a term encountered in multivariable calculus. A gradient related direction is usually encountered in the gradient based iterative optimisation of a function f. At each iteration k our current vector is x^k and we… …   Wikipedia

• gradient — del del n. (Math.) a differential operator which, operating on a function of several variables, gives the sum of the partial derivatives of the function with respect to the three orthogonal spatial coordinates; also called the {gradient} or… …   The Collaborative International Dictionary of English

• gradient — gra•di•ent [[t]ˈgreɪ di ənt[/t]] n. 1) civ the degree of inclination of a highway, railroad, etc., or the rate of ascent or descent of a stream or river 2) an inclined surface; grade; ramp 3) phs a) the rate of change with respect to distance of… …   From formal English to slang