erlink" href="#activations.Sigmoid" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="function.html#function.Function" title="function.Function"><code class="xref py py-class docutils literal notranslate"><span class="pre">function.Function</span></code></a></p>
<dl class="py method">
<dt id="activations.Sigmoid.backward">
<code class="sig-name descname">backward</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">dY</span></em><span c