I'm looking for solutions to this problem:(adsbygoogle = window.adsbygoogle || []).push({});

Matrices A(m,n) and B(n,m) satisfy AB=I(m,m) where n isn't equal to m.

Can I find a matrix S(m,n) such that SA=I(n,n) or SA approximates I(n,n)?

By approximate I don't have preferred definition, hence any suggestion is welcome!

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# Call for help in finding approximate inverse matrix

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