texmath-0.12.5: test/writer/eqn/mtableAwidth3.test

<<< native
[ EArray
    [ AlignCenter , AlignCenter ]
    [ [ [ ENumber "1" ] , [ ENumber "2" ] ]
    , [ [ EIdentifier "x" ] , [ EIdentifier "y" ] ]
    ]
]
>>> eqn
matrix{
ccol{ 1 above x }
ccol{ 2 above y }
}