ollowing code will work if <code>x</code> and <code>y</code> are parameters, transformed data, or local variables in a function or model block.</p>
<div class="sourceCode" id="cb2"><pre class="sourceCode stan code-with-copy"><code class="sourceCode stan"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="dt">real</span> x = <span class="co">// ...</span></span>
<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a><span class="dt">real</span> y = <span class