lass="odoc-spec"><div class="spec value anchored" id="val-atanh"><a href="#val-atanh" class="anchor"></a><code><span><span class="keyword">val</span> atanh : <span><a href="../index.html#type-elt">elt</a> <span class="arrow">&#45;&gt;</span></span> <a href="../index.html#type-elt">elt</a></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-relu"><a href="#val-relu" class="anchor"></a><code><span><span class="keyword">val</span> relu : <span><a href="../index.html#type-el