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[Janarthanan Krishnamoorthy]

---------- Forwarded message ----------
From: Janarthanan Krishnamoorthy <address@hidden>
Date: Fri, Jun 21, 2013 at 2:37 PM
Subject: Re: Your confirmation is required to join the Help-gsl mailing list
To: address@hidden


Dear GSL,

I have been using your library for a while. I had issues with numerically
fitting a function for Levenberg-Marquadt algorithm. I recently found that
by implementing 'Jacobian' calculation  numerically with GSL LVM algorithm,
helped me solve my problem. I would like to contribute to GSL in this
aspect.

As an example i have attached some sample fit for an exponential, parabolic
and squareroot functions whose Jacobian are solved numerically during LVM
fit.

Compilation :
gcc -o LVM_primer LVM_primer.c -lm -lgsl -lgslcblas

'LVM_primer' calls 'LVM_algorithm_modified.c'
'Data' is the data file with x,y
'Limit' is the initial guess for the parameters to fit


Best regards,
Jana.K
'


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-- 
K.Janarthanan,
930 N. University Avenue,
Chemistry Department & The Program in Biophysics
Ann Arbor, Michigan 48109-1055
Office: (734) 647-6572
Fax: (734) 764-3323



-- 
K.Janarthanan,
930 N. University Avenue,
Chemistry Department & The Program in Biophysics
Ann Arbor, Michigan 48109-1055
Office: (734) 647-6572
Fax: (734) 764-3323

Numerical_LVM.tar
Description: Unix tar archive