[Insight-developers] 0008911: Numerical issues in vnl matrix inversion?

[Tom Vercauteren]

Hi Bill,

I was actually writing an email about that exact matter :)

A few days ago, I tried to replicate bug 8911
http://www.itk.org/Bug/view.php?id=8911

I couldn't do it on my machine but since I had the test written, I
decided to commit it. Now I see it failing on a few machines. So
apparently, bug 8911 can be replicated.

I agree that letting vxl folks fix it would be good. Another option
would be to try a fix on ITK's side (which would be faster). I already
prepared something but cannot currently test whether it works or not.
The tentative patch is attached here and to the bug tracker. Could you
try it on your system?

Thanks,
Tom

On Mon, Jul 27, 2009 at 17:40, Bill Lorensen<bill.lorensen at gmail.com> wrote:
> Tom,
>
> I see that you checked in a test that exhibits the failing inversion.
> It fails on Borland, gcc 4.3 and MAC 4.0. Does it pass on your system?
>
> Is there a plan to fix this? Perhaps we should we let the vxl folks fix it?
>
> Bill
>
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