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Conjugation only makes sense for square matrices. More generally, left and right multiplication correspond to coordinate transformations of the output and input
by lkasjdklasdj 10y ago
Conjugation only makes sense for square matrices. More generally, left and right multiplication correspond to coordinate transformations of the output and input space, respectively.
- coherentpony 10y agoIf A is n x n and P is n x p then P is not square but P^T A P is well-defined.