I want to know if I do a row interchange on a positive definite matrix, will the result also be positive definite? And conversely, if I do a row interchange on a matrix that is not positive definite, will the resultant also not be positive definite?
Or can the row interchange change the positive definiteness status of a matrix?
2026-03-27 13:18:39.1774617519
Does row interchange affect the positive-definiteness of a matrix?
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