or <tt>ubx = Inf</tt>. So, e.g., by setting <tt>lbx=-Inf</tt>, <tt>ubx=Inf</tt> the variable is unbounded. Length of each array should be <tt>Nx</tt>. If one or both are missing, 'x' is considered as unconstrained from that side. Any <tt>lbx&gt;ubx</tt> is considered as error. If lbx==ubx the variable will be fixed and won't have further effect.
               </li>
            </ul>
         </div><pre> penm.lbx = [-Inf, -Inf, -1, 0, -3, -6, -77];
 penm.ubx = [10, Inf, Inf, 4, 66, 0, Inf];</pre><div>
     