     DEMLab - Discrete Element Method Laboratory            \n'</span>);
            fprintf(<span class="string">'                      Version 1.0 - May 2022                      \n'</span>);
            fprintf(<span class="string">' International Center for Numerical Methods in Engineering (CIMNE)\n'</span>);
            fprintf(<span class="string">'      Polytechnic University of Catalonia (UPC BarcelonaTech)     \n'</span>);
            fprintf(<span class="string">'==================================