<code>matrix[2,3] a</code></td>
<td align="center"><code>"a" : [ [ 1, 2, 3 ], [ 4, 5, 6] ]</code></td>
</tr>
</tbody>
</table>
<div id="empty-arrays-in-json" class="section level3" number="20.3.1">
<h3><span class="header-section-number">20.3.1</span> Empty arrays in JSON</h3>
<p>JSON notation is not able to distinguish between multi-dimensional
arrays where any dimension is <span class="math inline">\(0\)</span>, e.g., a 2-D array with dimensions <span class="math inline">\((1,0)\)</span>,
i.e., an array w