texmath-0.12.5: test/writer/eqn/rec-mlabeledtr.test

<<< native
[ EArray
    [ AlignCenter ]
    [ [ [ EGrouped
            [ EIdentifier "E"
            , ESymbol Rel "="
            , EGrouped
                [ EIdentifier "m"
                , ESymbol Ord "\8290"
                , ESuper (EIdentifier "c") (ENumber "2")
                ]
            ]
        ]
      ]
    ]
]
>>> eqn
matrix{
ccol{ {E = {m  c sup 2}} }
}