<<< native
[ EDelimited
    "("
    ")"
    [ Right
        (EArray
           [ AlignCenter , AlignCenter , AlignCenter ]
           [ [ [ ENumber "1" ] , [ ENumber "0" ] , [ ENumber "0" ] ]
           , [ [ ENumber "0" ] , [ ENumber "1" ] , [ ENumber "0" ] ]
           , [ [ ENumber "0" ] , [ ENumber "0" ] , [ ENumber "1" ] ]
           ])
    ]
]
>>> eqn
left ( matrix{
ccol{ 1 above 0 above 0 }
ccol{ 0 above 1 above 0 }
ccol{ 0 above 0 above 1 }
} right )