A matrix—a rectangular array of numbers ... Their study, "The ϕS polar decomposition when S is skew-symmetric," was published in Linear Algebra and its Applications, a journal that publishes ...

A is a symmetric matrix if A′ = A. A is a skew-symmetric matrix if A′ = –A. Any square matrix can be represented as the sum of a symmetric and a skew-symmetric matrix. If A and B are two ...