.parameter_accessors">Parameter
          Accessors</a>
        </h6>
<pre class="programlisting"><span class="identifier">RealType</span> <span class="identifier">x_min</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
<span class="identifier">RealType</span> <span class="identifier">x_max</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
</pre>
<p>
          Return the parameter <span class="emphasis"