</span></span> <span><a href="#type-t">t</a> option</span></span></code></div><div class="spec-doc"><p>* <code>div p1 p2</code> returns the division of p1 by p2. * None if the division is not exact</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-neg"><a href="#val-neg" class="anchor"></a><code><span><span class="keyword">val</span> neg : <span><a href="#type-t">t</a> <span class="arrow">&#45;&gt;</span></span> <a href="#type-t">t</a></span></code></div></div><div class="odoc-s