yade-dev team mailing list archive

[Anton Gladky <gladky.anton@xxxxxxxxx>]

I am not very familiar with this function,
but

A.eigenvalues().real()

should help you.
______________________________

Anton Gladkyy


2010/2/26 boon chiaweng <booncw@xxxxxxxxxxx>

>  Thanks Anton,
>
> what function in Eigen, that you're using to get the eigenvector?
> Matrix3d Eigenvectors = A.eigenvectors() doesn't work (A is a 3x3 matrx)...
>
>
> Yours,
>
> Boon
> ------------------------------
> From: gladky.anton@xxxxxxxxx
> Date: Fri, 26 Feb 2010 15:09:01 +0100
> To: yade-dev@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Yade-dev] Eigen decomposition
>
>
> That's true. That is one of reasons, why we move to Eigen library.
> Just wait a little bit, we have almost finished. (Or I am too optimistic ;)
> )
> ______________________________
> Anton Gladkyy
>
>
> 2010/2/26 boon chiaweng <booncw@xxxxxxxxxxx>
>
>  Hi,
>
> Wm3 was not able to carry out eigendecomposition correctly on my matrix,
> and gave "NaN".   Eigen tuxfamily, on the other hand, does not have
> spectral/eigen decomposition.  Does anyone know what's wrong with the
> eigendecomposition in Wm3?
>
>
> Yours,
>
> Boon
>
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