<<< tex
   M =
   \begin{bmatrix}
     \alpha_1 & \alpha_1^q & \cdots & \alpha_1^{q^{n - 1}} \\
     \alpha_2 & \alpha_2^q & \cdots & \alpha_2^{q^{n - 1}} \\
     \vdots   & \vdots     & \ddots & \vdots             \\
     \alpha_m & \alpha_m^q & \cdots & \alpha_m^{q^{n - 1}}
   \end{bmatrix}

>>> native
[ EIdentifier "M"
, ESymbol Rel "="
, EDelimited
    "["
    "]"
    [ Right
        (EArray
           [ AlignCenter , AlignCenter , AlignCenter , AlignCenter ]
           [ [ [ ESub (EIdentifier "\945") (ENumber "1") ]
             , [ ESubsup (EIdentifier "\945") (ENumber "1") (EIdentifier "q") ]
             , [ ESymbol Ord "\8943" ]
             , [ ESubsup
                   (EIdentifier "\945")
                   (ENumber "1")
                   (ESuper
                      (EIdentifier "q")
                      (EGrouped [ EIdentifier "n" , ESymbol Bin "\8722" , ENumber "1" ]))
               ]
             ]
           , [ [ ESub (EIdentifier "\945") (ENumber "2") ]
             , [ ESubsup (EIdentifier "\945") (ENumber "2") (EIdentifier "q") ]
             , [ ESymbol Ord "\8943" ]
             , [ ESubsup
                   (EIdentifier "\945")
                   (ENumber "2")
                   (ESuper
                      (EIdentifier "q")
                      (EGrouped [ EIdentifier "n" , ESymbol Bin "\8722" , ENumber "1" ]))
               ]
             ]
           , [ [ ESymbol Ord "\8942" ]
             , [ ESymbol Ord "\8942" ]
             , [ ESymbol Rel "\8945" ]
             , [ ESymbol Ord "\8942" ]
             ]
           , [ [ ESub (EIdentifier "\945") (EIdentifier "m") ]
             , [ ESubsup
                   (EIdentifier "\945") (EIdentifier "m") (EIdentifier "q")
               ]
             , [ ESymbol Ord "\8943" ]
             , [ ESubsup
                   (EIdentifier "\945")
                   (EIdentifier "m")
                   (ESuper
                      (EIdentifier "q")
                      (EGrouped [ EIdentifier "n" , ESymbol Bin "\8722" , ENumber "1" ]))
               ]
             ]
           ])
    ]
]