::evaluation_error.
          </li>
<li class="listitem">
            <span class="bold"><strong>Breaking change:</strong></span> Changed discrete quantiles
            to return an integer result: this is anything up to 20 times faster than
            finding the true root, this behaviour can be customised using <a class="link" href="../policy.html" title="Policies">Policy</a>'s.
          </li>
<li class="listitem">
            Polynomial/rational function evaluation is now customisable and hopefully
   