class="link" href="ulp.html#math_toolkit.next_float.ulp.description_ulp">Description
        - ulp</a>
      </h5>
<p>
        Returns one <a href="http://en.wikipedia.org/wiki/Unit_in_the_last_place" target="_top">unit
        in the last place</a> of <span class="emphasis"><em>x</em></span>.
      </p>
<p>
        Corner cases are handled as follows:
      </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
            If the argument is a NaN, th