          evaluates an N-term Chebyshev series.
        </li>
        <li>
          <a href = "error_f.m">error_f.m</a>, 
          evaluates the Error function.
        </li>
        <li>
          <a href = "error_fc.m">error_fc.m</a>, 
          evaluates the complementary Error function.
        </li>
        <li>
          <a href = "get_problem_num.m">get_problem_num.m</a>, 
          returns the number of test integration problems.
        </li>
        <li>
          <a href = "inits.m">inits.m</a>