/a> <span class="arrow">&#45;&gt;</span></span>
  <a href="../Symbol/Shape/Type/index.html#type-elt">Symbol.Shape.Type.elt</a></span></code></div><div class="spec-doc"><p><code>atan2 y x</code> returns the arctangent of <code>y / x</code>, considering the signs of <code>x</code> and <code>y</code> to determine the correct quadrant.</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-abs"><a href="#val-abs" class="anchor"></a><code><span><span class="keyword">val</span> abs : <span