o zenplot()) exist</dd>
      </dl><dl><dt>

          <code><a href="plot_region.html">plot_region()</a></code>

        </dt>
        <dd>Function to set up the plot region for graphics plots</dd>
      </dl><dl><dt>

          <code><a href="vport.html">vport()</a></code>

        </dt>
        <dd>Viewport Constructing Function for Grid Functions</dd>
      </dl><dl><dt>

          <code><a href="zenarrow.html">zenarrow()</a></code>

        </dt>
        <dd>Defining an arrow</dd>
      </dl></div><div