it.inv_hyper.asinh.implementation">Implementation</a>
      </h5>
<p>
        For sufficiently large x we can use the <a href="http://functions.wolfram.com/ElementaryFunctions/ArcSinh/06/01/06/01/0001/" target="_top">approximation</a>:
      </p>
<p>
        <span class="inlinemediaobject"><img src="../../../equations/asinh2.svg"></span>
      </p>
<p>
        While for very small x we can use the <a href="http://functions.wolfram.com/ElementaryFunctions/ArcSinh/06/01/03/01/0001/" target="_top">approximatio