ar produces a matrix,
and the multiplying by a scalar produces another matrix.</p>
<p>Similarly,</p>
<div class="sourceCode" id="cb85"><pre class="sourceCode stan"><code class="sourceCode stan"><span id="cb85-1"><a href="compound-variable-declaration-and-definition.html#cb85-1" aria-hidden="true" tabindex="-1"></a><span class="dt">complex</span> z = <span class="dv">2</span> + <span class="fl">3i</span>;</span></code></pre></div>
<p>assigns the the complex number <span class="math inline">\(2 + 3i\)</span> 