float</span></code>,
            <code class="computeroutput"><span class="keyword">double</span></code> and <code class="computeroutput"><span class="keyword">long</span> <span class="keyword">double</span></code>.
          </li>
<li class="listitem">
            The facet is case-insensitive.
          </li>
<li class="listitem">
            An optional <code class="computeroutput"><span class="special">+</span></code> sign can be
            used with the positive values.
          </li>
<li class="list