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*To*: "[eigen] mailing list" <eigen@xxxxxxxxxxxxxxxxxxx>
*Subject*: Re: [eigen] Matrix power
*From*: Dale Lukas Peterson <hazelnusse@xxxxxxxxx>
*Date*: Wed, 19 Jun 2013 00:01:04 -0700
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On Tue, Jun 18, 2013 at 11:45 PM, 何震邦 <jdh8@xxxxxxxxxxxxxx> wrote:
> Sorry for my late reply.
No problem!
>
> If A has a zero eigenvalue, there is a zero on diag of T. Therefore, there is an 1
> on diag of (I - T), enlarging (I - T).norm(), making Eigen sqrt'ing (I - T).
> However, no matter how many times (I - T) is sqrt'ed, the 1 stands still on its
> diag, leading to an infinite loop.
>
Ok, I think see what is going on.
> I will finish my final exam at 8:50 tomorrow UTC. I will work on this since
> then.
Cool, let me know if you want me to test any patches out. I'm usually
on IRC #eigen with handle DLPeterson if you want to chat.
> Thanks for your discovery!
It is I who should be thanking you for working on this. Thank you.
Luke