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<p>by any similarity transformation.)</p>

<p><big> Decomposition </big></p>
<p>Using the <a href="page.php?w=Jordan_normal_form">Jordan normal form</a>, one can prove that every square real matrix can be written as a product of two real symmetric matrices, and every square complex matrix can be written as a product of two complex symmetric matrices.</p>

<p>Every real <a href="page.php?w=non-singular_matrix">non-singular matrix</a> can be uniquely factored as the product of an <a href="page.php?w=orthogonal_matrix">orthogonal matrix</a> and a symmetric</p><p>
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