 href = "square.out">square.out</a>,
          output from a run of the program;
        </li>
        <li>
          <a href = "square_nodes.png">square_nodes.png</a>,
          a <a href = "../../data/png/png.html">PNG</a> image of
          the 49 nodes;
        </li>
        <li>
          <a href = "square_nodes.txt">square_nodes.txt</a>,
          a text file containing a list, for each node, of its X and Y
          coordinates;
        </li>
        <li>
          <a href = "square_elements.png">squ