A matrix inside a table of level 2:

@@TABLE@@
<tr>
@@TABLE@@
<td>
@_MAT_@
</td>
@@END_TABLE@@
</tr>

@@END_TABLE@@

The same matrix inside a single table:

@@TABLE@@
<tr>
<td>
@_MAT_@
</tr>

@@END_TABLE@@

The same matrix outside a table:

@_MAT_@
