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From: "Bruno Luong" <b.luong@fogale.fr>
Newsgroups: comp.soft-sys.matlab
Subject: Re: Common tangent
Date: Wed, 28 Nov 2007 17:58:51 +0000 (UTC)
Organization: FOGALE nanotech
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"John D'Errico" <woodchips@rochester.rr.com> wrote in
message <fik8j5$jpn$1@fred.mathworks.com>...

> 
> Are you kidding? I'm trying to suggest that
> an optimization will be fraught with problems.
> 

Sorry for miss-reading John. It seems that you gave a lot of
hints about chosing the metric for calcution of distance
between two tangents. The metric must be explicitely defined
in the optimization framework, and it is extremely
important, I agree. But how is the impact of metric on the
performance of a zero solver of multivariable function?

Bruno