the result is likely to round to <span class="math inline">\(u\)</span> anyway.</p>
<p>To conclude, when evaluating <span class="math inline">\(\log (a + b)\)</span> given <span class="math inline">\(\log a\)</span> and <span class="math inline">\(\log b\)</span>, and assuming <span class="math inline">\(\log a &gt; \log b\)</span>, return</p>
<p><span class="math display">\[
\log (a + b) \ = \
\log a + \mathrm{log1p}(\exp(\log b - \log a)).
\]</span></p>
</div>
</div>
            </section>

          </di