Re: Re: Polinom evaluation

From: Lorenzo Moneta <Lorenzo.Moneta_at_cern.ch>
Date: Mon, 25 May 2009 10:44:27 +0200


Hello Dmitry,

  there have been some changes with the Fit method between 5.20 and 5.22 and afterwards also some bug fixes. Can you try with the latest release or eventually the svn trunk ? Eventually I would need a script reproducing your problem to understand it better

  Best Regards

  Lorenzo
On May 22, 2009, at 4:57 PM, Dmitry Kotov wrote:

> sorry, that's not the Eval problem actually,
> something wrong with the Fit method, the 5.14 and 5.22 fit my points
> differently
> if someone's know about any changes in Fit method made in this
> period of time, please let me know
> anyway, I'll try to figure it out by myself
> don't bother much
>
> thanks!
>
> 2009/5/22 Dmitry Kotov <dmitriy.kotov_at_gmail.com>
> Dear all,
>
> I'd like to ask the experts about Eval method.
> Were there any changes made in the evaluation mechanism since ROOT
> version 5.14? And if yes, what kind of them?
>
> The problem is that i try to evaluate the derivative of the same
> function in ROOT 5.14 and ROOT 5.22 and get different values.
> Still the difference is not very crucial, but somehow I'm confused
> about that.
>
> With best regards, Dmitry Kotov
>
> --
> ------------
> Dmitry Kotov
> Assistant-researcher
> Saint Petersburg Nuclear Physics Institute
> Gatchina, Orlova Roscha, Russia
> -------------
>
Received on Mon May 25 2009 - 10:44:30 CEST

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