fault behaviour
          for domain, pole and overflow errors to throw an exception (based on review
          feedback), this behaviour can be customised using <a class="link" href="../policy.html" title="Chapter 21. Policies: Controlling Precision, Error Handling etc">Policy</a>'s.
        </li>
<li class="listitem">
          <span class="bold"><strong>Breaking change:</strong></span> Changed exception thrown
          when an internal evaluation error occurs to boost::math::evaluation_error.
        