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Retta Moges Ashagrie


Last seen: 2 years ago Active since 2018

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ichol encountered a nonpositive pivot
I have 2527676x2527676 sparse matrix K that ichol gives up easily with the ''ichol encountered a nonpositive pivot'' error. I t...

5 years ago | 1 answer | 1

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Is there a simple way to rearrange a matrix into a diagonally dominant form?
diag_som=trace(a) mat_som=sum(a,2)-diag(a) test=any(mat_som>=diag_som)

5 years ago | 0