ey.f</a>, the source code.
        </li>
        <li>
          <a href = "fd_predator_prey.sh">fd_predator_prey.sh</a>,
          commands to compile the source code.
        </li>
      </ul>
    </p>

    <h3 align = "center">
      Examples and Tests:
    </h3>

    <p>
      The program writes out a file of the solution data.  The data can be
      plotted by MATLAB, for instance, using commands like this:
      <pre>
        trf = load ( 'trf_10000.txt' );
        plot ( trf(:,1), trf(:,2), 'g-', trf(