This is indexf, a program that measures line-strength indices in wavelength
calibrated FITS spectra.

Maintainer: cardiel@ucm.es
Webpage (documentation): http://indexf.readthedocs.io/
Webpage (source code): https://github.com/nicocardiel/indexf

This software is distributed under GPL , either version 3 of the License, or
(at your option) any later version. See the file COPYING for details.

Linking indexf statically or dynamically with other modules is making a
combined work based on indexf. Thus, the terms and conditions of the GNU
General Public License cover the whole combination.

In addition, as a special exception, the copyright holders of indexf give you
permission to combine indexf program with free software programs or libraries
that are released under the GNU LGPL and with code included in the standard
release of Pgplot under the Pgplot license (or modified versions of such code,
with unchanged license). You may copy and distribute such a system following
the terms of the GNU GPL for indexf and the licenses of the other code
concerned, provided that you include the source code of that other code when
and as the GNU GPL requires distribution of source code.

Note that people who make modified versions of indexf are not obligated to
grant this special exception for their modified versions; it is their choice
whether to do so. The GNU General Public License gives permission to release a
modified version without this exception; this exception also makes it possible
to release a modified version which carries forward this exception.