It seems that one of the multiplication signs got cut off during copy/pasting, so the equation was incomplete, and that was the issue with "function_2" message.
Found out a day later when looking over the equations.
Sorry to have brought it up prematurely.

Regards
Mikhail Solovyev

On Mon, Feb 6, 2017 at 1:00 PM, <ifeffit-request@millenia.cars.aps.anl.gov> wrote:
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Today's Topics:

   1. Trigonometric Function in GDS (Mikhail Solovyev)
   2. Re: Trigonometric Function in GDS (Bruce Ravel)


----------------------------------------------------------------------

Message: 1
Date: Mon, 6 Feb 2017 10:36:07 -0500
From: Mikhail Solovyev <sarsol89@gmail.com>
To: ifeffit@millenia.cars.aps.anl.gov
Subject: [Ifeffit] Trigonometric Function in GDS
Message-ID:
        <CABVdVPyLurVSnT=Yevbfya=_6t+gt2uoJT9QCYVh7zxzT3F_Dw@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hello to all.

I am encountering an issue when trying to input a trigonometric function in
my GDS window. When trying to fit the data, i get what appears to be an
error

GDS: 'FeN0'
     function_2

And it applies to every GDS that has the trig function in it.
What exactly does the function_2 mean?

Thank you.
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Message: 2
Date: Mon, 6 Feb 2017 11:12:44 -0500
From: Bruce Ravel <bravel@bnl.gov>
To: XAFS Analysis using Ifeffit <ifeffit@millenia.cars.aps.anl.gov>
Subject: Re: [Ifeffit] Trigonometric Function in GDS
Message-ID: <e929cc12-3149-6ae0-2863-1777c340532f@bnl.gov>
Content-Type: text/plain; charset=windows-1252; format=flowed


I've never seen that before.  You have provided no context.  Without
some context, I cannot be expected to provide an answer.

http://bruceravel.github.io/demeter/documents/SinglePage/help.html

B

On 02/06/2017 10:36 AM, Mikhail Solovyev wrote:
> Hello to all.
>
> I am encountering an issue when trying to input a trigonometric function
> in my GDS window. When trying to fit the data, i get what appears to be
> an error
>
> GDS: 'FeN0'
>      function_2
>
> And it applies to every GDS that has the trig function in it.
> What exactly does the function_2 mean?
>
> Thank you.
>
>
>
>
> _______________________________________________
> Ifeffit mailing list
> Ifeffit@millenia.cars.aps.anl.gov
> http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit
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>


--
  Bruce Ravel  ------------------------------------ bravel@bnl.gov

  National Institute of Standards and Technology
  Synchrotron Science Group at NSLS-II
  Building 743, Room 114
  Upton NY, 11973

  Homepage:    http://bruceravel.github.io/home/
  Software:    https://github.com/bruceravel
  Demeter:     http://bruceravel.github.io/demeter/


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