Re: [eigen] Another LDLt issue

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>> routine dsytrf does an LDLt factorization for a symmetric but not
>> necessarily positive definite
>> matrix.
> Our LDLt does the same,

Oops, I misread what you wrote. So, dsytrf doesn't require the matrix
to be positive? interesting. I don't have an example of a symmetric
matrix that doesn't have an LDLt decomposition, I was just saying that
the standard algorithm couldn't handle all of them, but maybe dsytrf
uses another algorithm...


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