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.\" ========================================================================
.\"
.IX Title "lmfit 7"
.TH lmfit 7 "2015-12-02" "perl v5.20.2" "lmfit manual"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
lmfit \- Levenberg\-Marquardt least\-squares minimization
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBlmfit\fR is a C library for Levenberg-Marquardt least-squares minimization and curve fitting. It is mature code, based on decades-old algorithms from the \s-1FORTRAN\s0 library \s-1MINPACK.\s0
.PP
For fitting a data set {(x_i,y_i)|i=0,1,..} by a parametric curve f(x,t), see \fBlmcurve\fR(3).
.PP
For generic minimization of the Eucledian norm of parametric vector, see \fBlmmin\fR(3).
.PP
For an example how to use \fBlmmin\fR, see the source files \fIlmcurve.h\fR and \fIlmcurve.c\fR. Do not patch these files; copy and modify them to create your own, differently named version of \fIlmcurve_data_struct\fR, \fIlmcurve_evaluate\fR, and \fIlmcurve\fR.
.SH "COPYING"
.IX Header "COPYING"
Copyright (C):
   1980\-1999 University of Chicago
   2004\-2015 Joachim Wuttke, Forschungszentrum Juelich GmbH
.PP
Software: FreeBSD License
.PP
Documentation: Creative Commons Attribution Share Alike
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\fBlmcurve\fR(3), \fBlmmin\fR(3)
.PP
Homepage: http://apps.jcns.fz\-juelich.de/lmfit
.SH "BUGS"
.IX Header "BUGS"
Please send bug reports and suggestions to the author <j.wuttke@fz\-juelich.de>.