ripting operator also returns subarrays of arrays. For
example, if <code>x</code> is of type <code>array[,,] real</code>, then <code>x[2]</code>
is of type <code>array[,] real</code>, and <code>x[2, 3]</code> is of type
<code>array[] real</code>. As a result, the expressions <code>x[2, 3]</code> and
<code>x[2][3]</code> have the same meaning.</p>
</div>
<div id="accessing-matrix-rows" class="section level3 unnumbered">
<h3>Accessing matrix rows</h3>
<p>If <code>Sigma</code> is a variable of type <code>matri