lways interchangeable in Stan, so the above can be laid
out as follows to more clearly indicate the row and column structure
of the resulting two dimensional array.</p>
<pre class="stan"><code>int b[2, 3] = { { 1, 2, 3 },
                { 4, 5, 6 } };</code></pre>
</div>
<div id="array-expression-types" class="section level3 unnumbered">
<h3>Array expression types</h3>
<p>Any type of expression may be used within braces to form an array
expression. In the simplest case, all of the elements will be of the
s