• Thumbnail for Diagonal
    In geometry, a diagonal is a line segment joining two vertices of a polygon or polyhedron, when those vertices are not on the same edge. Informally, any...
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  • Look up diagonalization in Wiktionary, the free dictionary. In logic and mathematics, diagonalization may refer to: Matrix diagonalization, a construction...
    659 bytes (122 words) - 01:53, 17 December 2021
  • non-defective if it is similar to a diagonal matrix. That is, if there exists an invertible matrix P {\displaystyle P}  and a diagonal matrix D {\displaystyle D}...
    27 KB (4,688 words) - 17:10, 5 September 2024
  • In linear algebra, a diagonal matrix is a matrix in which the entries outside the main diagonal are all zero; the term usually refers to square matrices...
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  • Thumbnail for Cantor's diagonal argument
    Cantor's diagonal argument (among various similar names) is a mathematical proof that there are infinite sets which cannot be put into one-to-one correspondence...
    27 KB (2,812 words) - 12:56, 25 July 2024
  • Diagonal argument can refer to: Diagonal argument (proof technique), proof techniques used in mathematics. A diagonal argument, in mathematics, is a technique...
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  • Thumbnail for Diagonal pliers
    Diagonal pliers (also known as wire cutters or diagonal cutting pliers, or under many regional names) are pliers intended for the cutting of wire or small...
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  • linear algebra, the main diagonal (sometimes principal diagonal, primary diagonal, leading diagonal, major diagonal, or good diagonal) of a matrix A {\displaystyle...
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  • mathematics, a square matrix is said to be diagonally dominant if, for every row of the matrix, the magnitude of the diagonal entry in a row is greater than or...
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  • known as the anti-diagonal (sometimes Harrison diagonal, secondary diagonal, trailing diagonal, minor diagonal, off diagonal or bad diagonal). An n-by-n matrix...
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  • Thumbnail for Block matrix
    like the block diagonal matrix a square matrix, having square matrices (blocks) in the lower diagonal, main diagonal and upper diagonal, with all other...
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  • Thumbnail for Space diagonal
    diagonal (also interior diagonal or body diagonal) of a polyhedron is a line connecting two vertices that are not on the same face. Space diagonals contrast...
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  • In mathematical logic, the diagonal lemma (also known as diagonalization lemma, self-reference lemma or fixed point theorem) establishes the existence...
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  • Thumbnail for Arid Diagonal
    The Arid Diagonal (Spanish: diagonal árida/arreica) is a contiguous zone of arid and semi-arid climate that traverses South America from coastal Peru...
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  • Thumbnail for Referee (association football)
    the same diagonal throughout the same match. Most initially opted for the right-wing diagonal although over the years the left-wing diagonal became increasingly...
    27 KB (3,266 words) - 13:26, 5 September 2024
  • Thumbnail for Empty diagonal
    The empty diagonal (French: diagonale du vide) is a band of low-density population that stretches from the French department of the Landes in the southwest...
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  • Thumbnail for Face diagonal
    In geometry, a face diagonal of a polyhedron is a diagonal on one of the faces, in contrast to a space diagonal passing through the interior of the polyhedron...
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  • the main diagonal, the subdiagonal/lower diagonal (the first diagonal below this), and the supradiagonal/upper diagonal (the first diagonal above the...
    18 KB (2,704 words) - 06:08, 29 August 2024
  • A diagonal mirror is a flat mirror used to produce a right-angle bend in a light path. Examples of diagonal mirrors include: The secondary mirror used...
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  • Thumbnail for Star diagonal
    A star diagonal, erecting lens or diagonal mirror is an angled mirror or prism used in telescopes that allows viewing from a direction that is perpendicular...
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  • Thumbnail for Diagonal View
    Diagonal View is a Multi Channel Network founded in March 2008 by Matt Heiman and Steve Carey, together with ITN. Unlike many other MCNs who are primary...
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  • The diagonal formula can refer to: some geometric method see Polygon entry The formula developed by Aumann and Shapley to construct a Shapley value for...
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  • a magic cube, a broken space diagonal is a sequence of cells of the cube that follows a line parallel to a space diagonal of the cube, and continues on...
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  • where the product a × a {\displaystyle a\times a} exists, there exists the diagonal morphism δ a : a → a × a {\displaystyle \delta _{a}:a\rightarrow a\times...
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  • the mathematical discipline of group theory, for a given group G, the diagonal subgroup of the n-fold direct product G  n is the subgroup { ( g , … ,...
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  • whose non-zero entries are confined to a diagonal band, comprising the main diagonal and zero or more diagonals on either side. Formally, consider an n×n...
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  • Thumbnail for Ball-peen hammer
    called the peen, rounded. It is distinguished from a cross-peen hammer, diagonal-peen hammer, point-peen hammer, or chisel-peen hammer by having a hemispherical...
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  • Thumbnail for Decan
    Decan (redirect from Diagonal Star Clocks)
    uncertainty surrounding the observation methods used to develop and populate the diagonal star tables, and the criteria used to select decans (brightness, position...
    24 KB (1,520 words) - 14:45, 29 August 2024
  • Thumbnail for Diagonal, Iowa
    Diagonal is a city in northwest Ringgold County, Iowa, the United States. The population was 344 at the time of the 2020 census. The community was named...
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  • Thumbnail for Diagonal relationship
    In chemistry, a diagonal relationship is said to exist between certain pairs of diagonally adjacent elements in the second and third periods (first 20...
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