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when toggle format what by license comment
Jun 23, 2022 at 13:18 comment added Federico Poloni OK. Please take some time to review your questions in the future.
Jun 23, 2022 at 11:25 comment added Luna947 Thank you so much for your answer and the counterexample. Obviously, I was too sloppy in formulating the matrix A, so I edited it. I think in this case, unfortunately the your example does not fit.
Jun 23, 2022 at 10:48 history answered Federico Poloni CC BY-SA 4.0