</div><div class="odoc-spec"><div class="spec value anchored" id="val-is_random_variable"><a href="#val-is_random_variable" class="anchor"></a><code><span><span class="keyword">val</span> is_random_variable : <span><a href="Shape/Type/index.html#type-op">Shape.Type.op</a> <span class="arrow">&#45;&gt;</span></span> bool</span></code></div><div class="spec-doc"><p>check if operator is randon variable</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-refnum"><a href="#val-refnum" 