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diff --git a/matlab/mex/astra_mex.cpp b/matlab/mex/astra_mex.cpp
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+/*
+-----------------------------------------------------------------------
+Copyright 2012 iMinds-Vision Lab, University of Antwerp
+
+Contact: astra@ua.ac.be
+Website: http://astra.ua.ac.be
+
+
+This file is part of the
+All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+
+The ASTRA Toolbox is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+The ASTRA Toolbox is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+
+-----------------------------------------------------------------------
+$Id$
+*/
+
+#include <mex.h>
+#include "mexHelpFunctions.h"
+
+#include "astra/Globals.h"
+
+using namespace std;
+using namespace astra;
+
+
+//-----------------------------------------------------------------------------------------
+/** astra_mex('credits');
+ * 
+ * Print Credits
+ */
+void astra_mex_credits(int nlhs, mxArray* plhs[], int nrhs, const mxArray* prhs[])
+{ 
+	cout << "All Scale Tomographic Reconstruction Antwerp Toolbox (ASTRA-Toolbox) was developed at the University of Antwerp by" << endl;
+	cout << " * Joost Batenburg, PhD" << endl;
+	cout << " * Gert Merckx" << endl;
+	cout << " * Willem Jan Palenstijn" << endl;
+	cout << " * Tom Roelandts" << endl;
+	cout << " * Prof. Dr. Jan Sijbers" << endl;
+	cout << " * Wim van Aarle" << endl;
+	cout << " * Sander van der Maar" << endl;
+	cout << " * Gert Van Gompel, PhD" << endl;
+}
+
+//-----------------------------------------------------------------------------------------
+/** use_cuda = astra_mex('use_cuda');
+ * 
+ * Is CUDA enabled?
+ */
+void astra_mex_use_cuda(int nlhs, mxArray* plhs[], int nrhs, const mxArray* prhs[])
+{ 
+	if (1 <= nlhs) {
+		plhs[0] = mxCreateDoubleScalar(astra::cudaEnabled() ? 1 : 0);
+	}
+}
+
+//-----------------------------------------------------------------------------------------
+/** version_number = astra_mex('version');
+ * 
+ * Fetch the version number of the toolbox.
+ */
+void astra_mex_version(int nlhs, mxArray* plhs[], int nrhs, const mxArray* prhs[])
+{ 
+	if (1 <= nlhs) {
+		plhs[0] = mxCreateDoubleScalar(astra::getVersion());
+	} else {
+		cout << "astra toolbox version " << astra::getVersionString() << endl;
+	}
+}
+
+//-----------------------------------------------------------------------------------------
+
+static void printHelp()
+{
+	mexPrintf("Please specify a mode of operation.\n");
+	mexPrintf("   Valid modes: version, use_cuda, credits\n");
+}
+
+//-----------------------------------------------------------------------------------------
+/**
+ * ... = astra_mex(type,...);
+ */
+void mexFunction(int nlhs, mxArray* plhs[],
+				 int nrhs, const mxArray* prhs[])
+{
+
+	// INPUT0: Mode
+	string sMode = "";
+	if (1 <= nrhs) {
+		sMode = mex_util_get_string(prhs[0]);	
+	} else {
+		printHelp();
+		return;
+	}
+
+	// SWITCH (MODE)
+	if (sMode ==  std::string("version")) { 
+		astra_mex_version(nlhs, plhs, nrhs, prhs); 
+	} else if (sMode ==  std::string("use_cuda")) {	
+		astra_mex_use_cuda(nlhs, plhs, nrhs, prhs); 
+	} else if (sMode ==  std::string("credits")) {	
+		astra_mex_credits(nlhs, plhs, nrhs, prhs); 
+	} else {
+		printHelp();
+	}
+
+	return;
+}
+
+