  <li>
          <a href = "p24_f.m">p24_f.m</a>, 
          evaluates the integrand for problem 24.
        </li>
        <li>
          <a href = "p24_i4.m">p24_i4.m</a>, 
          sets or gets I4 parameters for problem 24.
        </li>
        <li>
          <a href = "p24_lim.m">p24_lim.m</a>, 
          returns the integration limits for problem 24.
        </li>
        <li>
          <a href = "p24_name.m">p24_name.m</a>, 
          returns a name for problem 24.
        </li>
        <li>
        