>method</span> abs : float <span>&#45;&gt;</span> <span>float <a href="../index.html#type-meth">meth</a></span></code></dt><dt class="spec method" id="method-acos"><a href="#method-acos" class="anchor"></a><code><span class="keyword">method</span> acos : float <span>&#45;&gt;</span> <span>float <a href="../index.html#type-meth">meth</a></span></code></dt><dt class="spec method" id="method-asin"><a href="#method-asin" class="anchor"></a><code><span class="keyword">method</span> asin : float <span>&#45;&gt;</