.html#type-t">t</a></code></dt><dt class="spec value" id="val-n_root"><a href="#val-n_root" class="anchor"></a><code><span class="keyword">val</span> n_root : <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> <span><span>(<a href="index.html#type-bound">bound</a> * <a href="index.html#type-bound">bound</a>)</span> option</span></code></dt><dt class="spec value" id="val-min"><a href="#val-min" class="anchor"></a><code><span class="keyword">val</