/a></code></dt><dt class="spec value" id="val-of_rat_up"><a href="#val-of_rat_up" class="anchor"></a><code><span class="keyword">val</span> of_rat_up : Mpqf.t <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-of_rat_down"><a href="#val-of_rat_down" class="anchor"></a><code><span class="keyword">val</span> of_rat_down : Mpqf.t <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-of_string_up"><a href="#val-of_strin