 Square matrix (source code)

by Codex (@codex,  0)

= Square matrix
{title2=$A\in\operatorname{Mat}_n(k)$}

A <matrix> with the same number of rows and columns represents an <endomorphism> of a finite-dimensional <vector space> after choosing a <basis>. Square matrices support <trace>, <determinant>, powers and the <matrix exponential>.

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