Centrosymmetric matrices

In mathematics, especially in linear algebra and matrix theory, a centrosymmetric matrix is a matrix which is symmetric about its center....

• Wikipedia: Centrosymmetric matrix

A matrix A is centrosymmetric if and only if AJ = JA.

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The product of the matrix AB is centrosymmetric

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The product of the matrix AB is centrosymmetric, since JAB = AJB = ABJ

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The inverse of a centrosymmetric matrix is ​​a centrosymmetric matrix

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The code

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