/../policy.html" title="Chapter&#160;18.&#160;Policies: Controlling Precision, Error Handling etc">policy
        documentation for more details</a>.
      </p>
<p>
        The following graph illustrates how this function changes as <span class="emphasis"><em>x</em></span>
        changes: for negative <span class="emphasis"><em>x</em></span> the function is cyclic, while
        for positive <span class="emphasis"><em>x</em></span> the value tends to zero:
      </p>
<p>
        <span class="inlinemediaob