span class="keyword">const</span> tvec2&lt;T, P&gt;&amp; x, <span class="keyword">const</span> tvec2&lt;T, P&gt;&amp; y){<span class="keywordflow">return</span> <a class="code" href="a00151.html#ga461e769acb8b8cb695a5a89334546611">atan</a>(x, y);} </div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="a00187.html#gad328042b6734d3f2c49c0ec1328b14c0">   57</a></span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, precision P&gt