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**skew symmetry**— noun alternate spelling of skew symmetry … Wiktionary**Symmetry in mathematics**— For other uses, see Symmetry (disambiguation) and Bilateral (disambiguation). Symmetry occurs not only in geometry, but also in other branches of mathematics. It is actually the same as invariance: the property that something does not change… … Wikipedia**Skew**— or skew lines lie on different planes. They are neither parallel nor intersecting.Mathematics*In geometry, straight lines in a space referred to as skew if they are neither parallel nor intersecting. *In statistics, skew is sometimes used as an… … Wikipedia**Skew-symmetric matrix**— In linear algebra, a skew symmetric (or antisymmetric) matrix is a square matrix A whose transpose is also its negative; that is, it satisfies the equation:: A T = − A or in component form, if A = ( a ij ):: a ij = − a ji for all i and j .For… … Wikipedia**skew**— In statistics, departure from symmetry of a frequency distribution. * * * n. a disorder of relationships within a family, in which one parent is overpowering and the other is submissive and there is a general avoidance of anxiety provoking… … Medical dictionary**Infinite skew polyhedron**— In geometry, infinite skew polyhedra are an extended definition of polyhedra, created by regular polygon faces, and nonplanar vertex figures.Many are directly related to a convex uniform honeycomb, being the polygonal surface of a honeycomb with… … Wikipedia**Rotation matrix**— In linear algebra, a rotation matrix is a matrix that is used to perform a rotation in Euclidean space. For example the matrix rotates points in the xy Cartesian plane counterclockwise through an angle θ about the origin of the Cartesian… … 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**Centrosymmetric matrix**— In mathematics, especially in linear algebra and matrix theory, a centrosymmetric matrix is a matrix which is symmetric about its center. More precisely, an n × n matrix A = [ Ai,j ] is centrosymmetric when its entries satisfy Ai,j = An−i+1,n−j+1 … Wikipedia**Pfaffian**— In mathematics, the determinant of a skew symmetric matrix can always be written as the square of a polynomial in the matrix entries. This polynomial is called the Pfaffian of the matrix. The Pfaffian is nonvanishing only for 2 n times; 2 n skew… … Wikipedia