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<title>lmfit: a self-contained C library for Levenberg-Marquardt least-squares minimization and curve fitting</title>
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<h1 id="NAME">NAME</h1>
<p>lmfit - Levenberg-Marquardt least-squares minimization</p>
<h1 id="DESCRIPTION">DESCRIPTION</h1>
<p><b>lmfit</b> is a C library for Levenberg-Marquardt least-squares minimization and curve fitting. It is mature code, based on decades-old algorithms from the FORTRAN library MINPACK.</p>
<p>For fitting a data set {(x_i,y_i)|i=0,1,..} by a parametric curve f(x,t), see <b>lmcurve</b>(3).</p>
<p>For generic minimization of the Eucledian norm of parametric vector, see <b>lmmin</b>(3).</p>
<p>For an example how to use <b>lmmin</b>, see the source files <i>lmcurve.h</i> and <i>lmcurve.c</i>. Do not patch these files; copy and modify them to create your own, differently named version of <i>lmcurve_data_struct</i>, <i>lmcurve_evaluate</i>, and <i>lmcurve</i>.</p>
<h1 id="COPYING">COPYING</h1>
<p>Copyright (C): 1980-1999 University of Chicago 2004-2015 Joachim Wuttke, Forschungszentrum Juelich GmbH</p>
<p>Software: FreeBSD License</p>
<p>Documentation: Creative Commons Attribution Share Alike</p>
<h1 id="SEE-ALSO">SEE ALSO</h1>
<a href="http://apps.jcns.fz-juelich.de/man/lmcurve.html"><b>lmcurve</b>(3)</a>,
<a href="http://apps.jcns.fz-juelich.de/man/lmmin.html"><b>lmmin</b>(3)</a>
<p>Homepage: http://apps.jcns.fz-juelich.de/lmfit</p>
<h1 id="BUGS">BUGS</h1>
<p>Please send bug reports and suggestions to the author <j.wuttke@fz-juelich.de>.</p>
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