Re: [eigen] Positive Definitenes?

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2010/3/2 Cyril Flaig <cflaig@xxxxxxxxxxx>:
> Hello
> On 2010-03-02 18:12, Benoit Jacob wrote:
>> Then it might be possible to do something more efficient with LDLt but
>> i don't know how numerically stable that would be: this is not, in
>> principle, a rank-revealing decomposition, and while it allows to get
>> the determinant, the determinant is not always the right invertibility
>> check for all situations.
> The Cholesky decomposition works only if the matrix is positive
> definite. If the decomposition fails then eigen sets a
> m_isPositiveDefinite to false, doesn't it?
> Or is this deprecated and not used in the new version?

This is deprecated indeed.

> -cyril

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