          evaluates a derivative component for problem p03.
        </li>
        <li>
          <a href = "p03_f.m">p03_f.m</a>,
          evaluates the function for problem p03.
        </li>
        <li>
          <a href = "p03_q.m">p03_q.m</a>,
          returns the integral for problem p03.
        </li>
        <li>
          <a href = "p03_title.m">p03_title.m</a>,
          returns the title of problem p03.
        </li>
        <li>
          <a href = "p04_d.m">p04_d.m</a>,
          evaluates a 