      sets default values for problem 29.
        </li>
        <li>
          <a href = "p29_exact.m">p29_exact.m</a>, 
          sets the exact integral for problem 29.
        </li>
        <li>
          <a href = "p29_f.m">p29_f.m</a>, 
          evaluates the integrand for problem 29.
        </li>
        <li>
          <a href = "p29_i4.m">p29_i4.m</a>, 
          sets or gets I4 parameters for problem 29.
        </li>
        <li>
          <a href = "p29_lim.m">p29_lim.m</a>, 
          returns t