&#45;&gt;</span></span> <a href="../Symbol/Shape/Type/index.html#type-elt">Symbol.Shape.Type.elt</a></span></code></div><div class="spec-doc"><p><code>relu a</code> applies the Rectified Linear Unit (ReLU) function to the scalar <code>a</code>, returning <code>max(0, a)</code>.</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-dawsn"><a href="#val-dawsn" class="anchor"></a><code><span><span class="keyword">val</span> dawsn : <span><a href="../Symbol/Shape/Type/index.html#type-el