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Re: [Help-gsl] Minimization problem : function not continuous
From: |
Brian Gough |
Subject: |
Re: [Help-gsl] Minimization problem : function not continuous |
Date: |
Fri, 9 Sep 2005 19:39:54 +0100 |
Till Isambert writes:
> i'm tryuing to minimize a function of one scalar variable which returns
> a scalar. I'm doing this with "gsl_min_fminimizer_minimum" .. but it
> doesn't work because GSL says "function not continuous" :(
>
> Does anyone knows if ther's a function which can handle discontinuties
> or something ? I've wrote the similar program in matlab and it works,
> even if the functions has dicsontinuities (i use fminbnd if you know
> Matlab) ....
Your function is actually returning Infinity or NaN.
The error message is a bit misleading, since it's the singularity that
is the problem rather than discontinuity (I will correct that in the
next release).
--
Brian Gough
Network Theory Ltd,
Publishing Free Software Manuals --- http://www.network-theory.co.uk/