<<< native
[ EArray
    [ AlignCenter , AlignCenter ]
    [ [ [ EText TextNormal "taller num" ]
      , [ EGrouped
            [ ESuper (EIdentifier "x") (ENumber "2")
            , ESymbol Bin "+"
            , ESuper
                (EFraction NormalFrac (EIdentifier "h") (EIdentifier "x"))
                (ENumber "2")
            , ESymbol Bin "+"
            , ESuper
                (EDelimited
                   "("
                   ")"
                   [ Right (EFraction NormalFrac (EIdentifier "h") (EIdentifier "x"))
                   ])
                (ENumber "2")
            ]
        ]
      ]
    , [ [ EText TextNormal "taller denom" ]
      , [ EGrouped
            [ ESuper (EIdentifier "x") (ENumber "2")
            , ESymbol Bin "+"
            , ESuper
                (EFraction NormalFrac (EIdentifier "x") (EIdentifier "y"))
                (ENumber "2")
            , ESymbol Bin "+"
            , ESuper
                (EDelimited
                   "("
                   ")"
                   [ Right (EFraction NormalFrac (EIdentifier "x") (EIdentifier "y"))
                   ])
                (ENumber "2")
            ]
        ]
      ]
    ]
]
>>> tex
\begin{matrix}
\text{taller num} & {x^{2} + \frac{h}{x}^{2} + \left( \frac{h}{x} \right)^{2}} \\
\text{taller denom} & {x^{2} + \frac{x}{y}^{2} + \left( \frac{x}{y} \right)^{2}}
\end{matrix}