x^a )=a\cdot \log (x)\)</span>?</a></li>
<li class="chapter" data-level="2.2.5" data-path="commonly-used-functions.html"><a href="commonly-used-functions.html#for-variables-that-grow-log-difference-is-close-to-rate-of-change"><i class="fa fa-check"></i><b>2.2.5</b> For Variables that Grow, Log difference is close to rate of change</a></li>
</ul></li>
</ul></li>
<li class="chapter" data-level="3" data-path="derivatives.html"><a href="derivatives.html"><i class="fa fa-check"></i><b>3</b> Derivatives</a>
<ul>
