I have this question as homework from my Algebra class:(adsbygoogle = window.adsbygoogle || []).push({});

A square matrix X is called exchangeable with A if AX=XA.Determine the set of permutable matrices with .

My question is,how do I find that set?I know that a matrix to be permutable all rows and columns must be the same and that a square matrix is composed by the same number of rows and columns.

Thanks in advance for the help!

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# Permutable matrices

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