</a></li>
               <li><a href="#11">So the winner is ... nobody</a></li>
               <li><a href="#12">The FACTORIZE object to the rescue</a></li>
               <li><a href="#13">Least-squares problems</a></li>
               <li><a href="#15">Underdetermined systems</a></li>
               <li><a href="#16">Computing selected entries in the inverse or pseudo-inverse</a></li>
               <li><a href="#17">Computing the entire inverse or pseudo-inverse</a></li>
               <li><a href="#18">