mprove certain edge cases for &lt;cstdfloat&gt; complex-valued elementary
          functions, see <a href="https://github.com/boostorg/math/issues/507" target="_top">#507</a>.
        </li>
</ul></div>
<h5>
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      <span class="phrase"><a name="math_toolkit.history1.math_3_1_0_boost_1_77"></a></span><a class="link" href="history1.html#math_toolkit.history1.math_3_1_0_boost_1_77">Math-3.1.0
      (Boost-1.77)</a>
    </h5>
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