Suppose I have some arbitrary square matrix [itex]M[/itex], and I want to build a unitary matrix [itex]U[/itex]: [tex]U=\left[\begin{array}{c|c}M & N \\\hline O & P\end{array}\right][/tex] Does there exist some general procedure for determining [itex]N[/itex], [itex]O[/itex], and [itex]P[/itex] given [itex]M[/itex]?(adsbygoogle = window.adsbygoogle || []).push({});

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# I Building a Unitary Matrix from a Non-Unitary Matrix

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