silon across all supported platforms.
      </p>
<h5>
<a name="math_toolkit.inv_hyper.atanh.h1"></a>
        <span class="phrase"><a name="math_toolkit.inv_hyper.atanh.testing"></a></span><a class="link" href="atanh.html#math_toolkit.inv_hyper.atanh.testing">Testing</a>
      </h5>
<p>
        This function is tested using a combination of random test values designed
        to give full function coverage computed at high precision using the "naive"
        formula:
      </p>
<p>
        <span class="inlin