> <span class="binding-type">number</span> <span class="binding-type"><a href="https://github.com/janet-lang/janet/blob/34496ec/src/core/math.c#L404">source</a></span> <pre class="binding-text">The base of the natural log.</pre><a href="https://janetdocs.org/math/e">Community Examples</a></div><hr><div class="binding"><span id="math/erf" class="binding-sym">math/erf</span> <span class="binding-type">cfunction</span> <span class="binding-type"><a href="https://github.com/janet-lang/janet/blob/34496ec/src/cor