<li>
          <b>PI_VALUES</b> returns values of the Pi function.
        </li>
        <li>
          <b>POCHHAMMER_VALUES</b> returns some values of the Pochhammer function.
        </li>
        <li>
          <b>POISSON_CDF_VALUES</b> returns some values of the Poisson CDF.
        </li>
        <li>
          <b>POLYLOGARITHM_VALUES</b> returns some values of the polylogarithm.
        </li>
        <li>
          <b>PRANDTL_VALUES</b> returns some values of the Prandtl number.
        </li>
        <