pan>&#45;&gt;</span> <span><a href="index.html#type-t">t</a> option</span></code></dt><dt class="spec value" id="val-ln10"><a href="#val-ln10" class="anchor"></a><code><span class="keyword">val</span> ln10 : <a href="B/index.html#type-t">B.t</a></code></dt><dt class="spec value" id="val-exp"><a href="#val-exp" class="anchor"></a><code><span class="keyword">val</span> exp : <span>(<a href="B/index.html#type-t">B.t</a> * <a href="B/index.html#type-t">B.t</a>)</span> <span>&#45;&gt;</span> <a href="B/index.htm