Sarrus scheme

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Rule of Sarrus — Sarrus rule or Sarrus scheme is a method and a memorization scheme to compute the determinant of a 3x3 matrix. It is named after the French mathematician Pierre Frédéric Sarrus.Consider a 3x3 matrix M=egin{pmatrix} a {11} a {12} a {13} a {21} a… … Wikipedia
Pierre Frédéric Sarrus — (10 March 1798, Saint Affrique 20 November 1861) was a French mathematician.Sarrus (Sarri Sarri) was professor at the University of Strasbourg, France (1826 1856) and member of the Academy of Sciences in Paris (1842).He is author of several… … Wikipedia
Cross product — This article is about the cross product of two vectors in three dimensional Euclidean space. For other uses, see Cross product (disambiguation). In mathematics, the cross product, vector product, or Gibbs vector product is a binary operation on… … Wikipedia
Determinant — This article is about determinants in mathematics. For determinants in epidemiology, see Risk factor. In linear algebra, the determinant is a value associated with a square matrix. It can be computed from the entries of the matrix by a specific… … Wikipedia

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