One can notice that in both the lower and upper triangular matrices, we have the main diagonal (row = column · For the lower triangular matrix we have entries ... ... <看更多>
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One can notice that in both the lower and upper triangular matrices, we have the main diagonal (row = column · For the lower triangular matrix we have entries ... ... <看更多>
... <看更多>
To summarize the comments into an answer: The matrix (123045). is echelon, but not triangular (because not square). The matrix (123004005). is triangular ... ... <看更多>
Hello, Sometimes symmetric matrices are presented in text files with just the lower or upper triangle of the matrix filled in with values. ... <看更多>