nsion for problem 7.
        </li>
        <li>
          <a href = "p07_sol.m">p07_sol.m</a>, 
          returns known solutions for problem 7.
        </li>
        <li>
          <a href = "p07_title.m">p07_title.m</a>, 
          returns a title for problem 7.
        </li>
        <li>
          <a href = "p08_ab.m">p08_ab.m</a>, 
          returns bounds for problem 8.
        </li>
        <li>
          <a href = "p08_f.m">p08_f.m</a>, 
          returns the objective function value for problem 8.
 