identity matrix
noun Date: circa 1929 a square matrix that has numeral 1's along the principal diagonal and 0's elsewhere

New Collegiate Dictionary. 2001.

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• Identity matrix — In linear algebra, the identity matrix or unit matrix of size n is the n by n square matrix with ones on the main diagonal and zeros elsewhere. It is denoted by I n , or simply by I if the size is immaterial or can be trivially determined by the… …   Wikipedia

• identity matrix — vienetinė matrica statusas T sritis fizika atitikmenys: angl. identity matrix; unit matrix vok. Einheitsmatrix, f rus. единичная матрица, f pranc. matrice unité, f; matrice unitaire, f …   Fizikos terminų žodynas

• identity matrix — noun a scalar matrix in which all of the diagonal elements are unity • Syn: ↑unit matrix • Hypernyms: ↑scalar matrix …   Useful english dictionary

• identity matrix — noun A diagonal matrix all of the diagonal elements of which are equal to 1. Syn: unit matrix …   Wiktionary

• identity matrix — Math. a matrix that has 1 in each position on the main diagonal and 0 in all other positions. [1940 45] * * * …   Universalium

• Identity — may refer to:Philosophy* Identity (philosophy), the sameness of two things * Identity theory of mind, in the philosophy of mind, holds that the mind is identical to the brain * Personal identity (philosophy) * Identity (social science) * Identity …   Wikipedia

• Matrix normal distribution — parameters: mean row covariance column covariance. Parameters are matrices (all of them). support: is a matrix …   Wikipedia

• Matrix multiplication — In mathematics, matrix multiplication is a binary operation that takes a pair of matrices, and produces another matrix. If A is an n by m matrix and B is an m by p matrix, the result AB of their multiplication is an n by p matrix defined only if… …   Wikipedia

• Matrix exponential — In mathematics, the matrix exponential is a matrix function on square matrices analogous to the ordinary exponential function. Abstractly, the matrix exponential gives the connection between a matrix Lie algebra and the corresponding Lie group.… …   Wikipedia

• Matrix (mathematics) — Specific elements of a matrix are often denoted by a variable with two subscripts. For instance, a2,1 represents the element at the second row and first column of a matrix A. In mathematics, a matrix (plural matrices, or less commonly matrixes)… …   Wikipedia

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