I know how to find an orthogonal matrix for a $2\times2$ or $3\times3$ matrix. However I have been stuck on how to do this for a $3\times2$ matrix. The question is how to find a non-zero $3\times2$ matrix B which is orthogonal to $A= \begin{pmatrix}1 & 2\\3&4\\5&6\end{pmatrix}$
2026-03-29 02:29:03.1774751343
Finding an orthogonal matrix for a 3x2
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