ftware/gsl/" target="_top">GSL-1.9</a>
          and <a href="http://www.netlib.org/cephes/" target="_top">Cephes</a> libraries.
          Note that only results for the widest floating-point type on the system
          are given as narrower types have <a class="link" href="../../backgrounders/relative_error.html#zero_error">effectively
          zero error</a>.
        </p>
<p>
          Note that the results for 80 and 128-bit long doubles are noticeably higher
          than for doubles: this is because