ng
      the results using X Windows.
    </p>

    <h3 align = "center">
      Reference:
    </h3>

    <p>
      <ol>
        <li>
          Paul Nahin,<br>
          Digital Dice: Computational Solutions to Practical Probability Problems,<br>
          Princeton University Press, 2008,<br>
          ISBN13: 978-0-691-12698-2,<br>
          LC: QA273.25.N34.
        </li>
        <li>
          Dianne OLeary,<br>
          Scientific Computing with Case Studies,<br>
          SIAM, 2008,<br>
          IS