[SciPy-user] Matrix sign function

Pearu Peterson scipy-user@scipy.net
Wed Sep 24 12:35:29 CDT 2003


On Wed, 24 Sep 2003, Pearu Peterson wrote:

> The results were different due to roundoff errors. Note that sign 
> function is very sensitive to that.

I mean, the sign function is sensitive to roundoff errors when there are
eigenvalues close to zero as was the case in your example.

Pearu




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