taken great care to avoid spurious over and underflow
            of these functions. Fixes issue <a href="https://svn.boost.org/trac/boost/ticket/5560" target="_top">#5560</a>
          </li>
<li class="listitem">
            Added an example of using Inverse Chi-Squared distribution for Bayesian
            statistics, provided by Thomas Mang.
          </li>
<li class="listitem">
            Added tests to use improved version of lexical_cast which handles C99
            nonfinites without using globale