f="index.html#type-t">t</a> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-sin_down"><a href="#val-sin_down" class="anchor"></a><code><span class="keyword">val</span> sin_down : <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-tan_up"><a href="#val-tan_up" class="anchor"></a><code><span class="keyword">val</span> tan_up : <a href="index.html#type-t">t</a> <span>&#45;&gt;</s