!if $found = yes
<center><table cellspacing=0 cellpadding=0 border=0>
!set leftp=<font size=+3> ( </font>
!set rightp=<font size=+3>) </font>
!for i = 1 to 2
<tr>
!if $i = 1
<td rowspan=2>
!instex $$$$ {x\choose y}\longmapsto\bigg( $$$$
!endif
!for j = 1 to 2
<td> $(el$(r$i$j)) </td>
!if $i = 1
<td rowspan=2>
!instex $$$$ \bigg)\cdot{x\choose y}+\bigg( $$$$
!endif
<td>
!set t=!word $i of $xr $yr
$(el$t)
</td>
!if $i = 1
<td rowspan=2>
!instex $$$$ \bigg) $$$$
!endif
</table></center>
!else found != yes
<center><table cellspacing=0 cellpadding=0 border=0>
!set leftp=<font size=+3> ( </font>
!set rightp=<font size=+3>) </font>
!for i = 1 to 2
<tr>
!if $i = 1
<td rowspan=2>
!instex $$$$ {x\choose y}\longmapsto\bigg( $$$$
!endif
!for j = 1 to 2
<td><select name=r$i$j>
!for s = 0 to $q-1
<option value=$s
!ifval $s=$(r$i$j)
selected
!endif
> $(el$s)
</select></td>
!if $i = 1
<td rowspan=2>
!instex $$$$ \bigg)\cdot{x\choose y}+\bigg( $$$$
!endif
!set j = !word $i of xr yr
<td><select name=$j>
!for s = 0 to $q-1
<option value=$s
!ifval $s=$($j)
selected
!endif
> $(el$s)
</select></td>
!if $i = 1
<td rowspan=2>
!instex $$$$ \bigg) $$$$
!endif
</table></center>
!endif found =? yes