k" href="../bessel/mbessel.html" title="Modified Bessel Functions of the First and Second Kinds">cyl_bessel_k</a> - refer to those
        functions for detailed accuracy information.
      </p>
<p>
        In general though, the relative error is low (less than 100 &#949;) for <span class="emphasis"><em>x
        &gt; 0</em></span> while only the absolute error is low for <span class="emphasis"><em>x &lt;
        0</em></span>.
      </p>
<h5>
<a name="math_toolkit.airy.ai.h3"></a>
        <span class="phr