. In particular:
      </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
            The function is asymetrical, which is to say, given <code class="computeroutput"><span class="identifier">u</span>
            <span class="special">=</span> <span class="identifier">ulp</span><span class="special">(</span><span class="identifier">x</span><span class="special">)</span></code> if <code class="computeroutput"><span class="identifier">x</span>
      