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diff --git a/examples/plotter1d.cpp b/examples/plotter1d.cpp
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+/*
+ #
+ # File : plotter1d.cpp
+ # ( C++ source file )
+ #
+ # Description : A simple math formula plotter.
+ # This file is a part of the CImg Library project.
+ # ( http://cimg.eu )
+ #
+ # Copyright : David Tschumperle
+ # ( http://tschumperle.users.greyc.fr/ )
+ #
+ # License : CeCILL v2.0
+ # ( http://www.cecill.info/licences/Licence_CeCILL_V2-en.html )
+ #
+ # This software is governed by the CeCILL license under French law and
+ # abiding by the rules of distribution of free software. You can use,
+ # modify and/ or redistribute the software under the terms of the CeCILL
+ # license as circulated by CEA, CNRS and INRIA at the following URL
+ # "http://www.cecill.info".
+ #
+ # As a counterpart to the access to the source code and rights to copy,
+ # modify and redistribute granted by the license, users are provided only
+ # with a limited warranty and the software's author, the holder of the
+ # economic rights, and the successive licensors have only limited
+ # liability.
+ #
+ # In this respect, the user's attention is drawn to the risks associated
+ # with loading, using, modifying and/or developing or reproducing the
+ # software by the user in light of its specific status of free software,
+ # that may mean that it is complicated to manipulate, and that also
+ # therefore means that it is reserved for developers and experienced
+ # professionals having in-depth computer knowledge. Users are therefore
+ # encouraged to load and test the software's suitability as regards their
+ # requirements in conditions enabling the security of their systems and/or
+ # data to be ensured and, more generally, to use and operate it in the
+ # same conditions as regards security.
+ #
+ # The fact that you are presently reading this means that you have had
+ # knowledge of the CeCILL license and that you accept its terms.
+ #
+*/
+
+// Include CImg library file and use its main namespace
+#include "CImg.h"
+using namespace cimg_library;
+
+// Main procedure
+//----------------
+int main(int argc,char **argv) {
+
+ // Read command line argument.
+ cimg_usage("Simple plotter of mathematical formulas");
+ const char *const formula = cimg_option("-f","sin(x/8) % cos(2*x)","Formula to plot");
+ const float x0 = cimg_option("-x0",-5.0f,"Minimal X-value");
+ const float x1 = cimg_option("-x1",5.0f,"Maximal X-value");
+ const int resolution = cimg_option("-r",1024,"Plot resolution");
+ const unsigned int nresolution = resolution>1?resolution:1024;
+ const unsigned int plot_type = cimg_option("-p",1,"Plot type");
+ const unsigned int vertex_type = cimg_option("-v",1,"Vertex type");
+
+ // Create plot data.
+ CImg<double> values(4,nresolution,1,1,0);
+ const unsigned int r = nresolution - 1;
+ cimg_forY(values,X) values(0,X) = x0 + X*(x1 - x0)/r;
+ cimg::eval(formula,values).move_to(values);
+
+ // Display interactive plot window.
+ values.display_graph(formula,plot_type,vertex_type,"X-axis",x0,x1,"Y-axis");
+
+ // Quit.
+ return 0;
+}