nwagner at iam.uni-stuttgart.de
Fri Jul 20 15:12:07 EDT 2007
On Fri, 20 Jul 2007 14:45:43 -0400
"Kevin Jacobs <jacobs at bioinformed.com>"
<bioinformed at gmail.com> wrote:
> On 7/20/07, Nils Wagner <nwagner at iam.uni-stuttgart.de>
>> Your sqrtm_eig(x) function won't work if x is defective.
>> See test_defective.py for details.
> I am aware, though at least on my system, the SVD-based
>method is by far the
> fastest and robust (and can be made more robust by the
>addition of a
> relative condition number threshold).
Your sqrtm_svd(x) method also returns a wrong result,
if x is defective.
The eig version
>was included mainly
> for comparison.
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