isometry(redirected from Orthonormal transformation)
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Related to Orthonormal transformation: orthogonal transformation, Unitary transformation, Orthonormal matrix
A mapping ƒ from a metric space X to a metric space Y where the distance between any two points of X equals the distance between their images under ƒ in Y.
A linear isomorphism σ of a vector space E onto itself such that, for a given bilinear form g, g (σ x, σ y)= g (x,y) for all x and y in E.