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  • João Gris thinks this is interesting:

For example, if we take two matrices $$ A = \left[\begin{array}{cc}\hfill 19\hfill & \hfill 22\hfill \\ {}\hfill 43\hfill & \hfill 50\hfill \end{array}\right] $$ and $$ B=\left[\begin{array}{cc}\hfill 5\hfill & \hfill 6\hfill \\ {}\hfill 7\hfill & \hfill 8\hfill \end{array}\right] $$, then