<<< native
[ EArray
    [ AlignCenter , AlignCenter , AlignCenter ]
    [ [ [] , [ EText TextNormal "258" ] , [ EText TextNormal "259" ] ]
    , [ [ EText TextNormal "0" ]
      , [ ESymbol Ord "\9600" ]
      , [ ESymbol Ord "\9616" ]
      ]
    , [ [ EText TextNormal "1" ]
      , [ ESymbol Ord "\9601" ]
      , [ ESymbol Ord "\9617" ]
      ]
    , [ [ EText TextNormal "2" ]
      , [ ESymbol Ord "\9602" ]
      , [ ESymbol Ord "\9618" ]
      ]
    , [ [ EText TextNormal "3" ]
      , [ ESymbol Ord "\9603" ]
      , [ ESymbol Ord "\9619" ]
      ]
    , [ [ EText TextNormal "4" ]
      , [ ESymbol Ord "\9604" ]
      , [ ESymbol Ord "\9620" ]
      ]
    , [ [ EText TextNormal "5" ]
      , [ ESymbol Ord "\9605" ]
      , [ ESymbol Ord "\9621" ]
      ]
    , [ [ EText TextNormal "6" ]
      , [ ESymbol Ord "\9606" ]
      , [ ESymbol Ord "\9622" ]
      ]
    , [ [ EText TextNormal "7" ]
      , [ ESymbol Ord "\9607" ]
      , [ ESymbol Ord "\9623" ]
      ]
    , [ [ EText TextNormal "8" ]
      , [ ESymbol Ord "\9608" ]
      , [ ESymbol Ord "\9624" ]
      ]
    , [ [ EText TextNormal "9" ]
      , [ ESymbol Ord "\9609" ]
      , [ ESymbol Ord "\9625" ]
      ]
    , [ [ EText TextNormal "A" ]
      , [ ESymbol Ord "\9610" ]
      , [ ESymbol Ord "\9626" ]
      ]
    , [ [ EText TextNormal "B" ]
      , [ ESymbol Ord "\9611" ]
      , [ ESymbol Ord "\9627" ]
      ]
    , [ [ EText TextNormal "C" ]
      , [ ESymbol Ord "\9612" ]
      , [ ESymbol Ord "\9628" ]
      ]
    , [ [ EText TextNormal "D" ]
      , [ ESymbol Ord "\9613" ]
      , [ ESymbol Ord "\9629" ]
      ]
    , [ [ EText TextNormal "E" ]
      , [ ESymbol Ord "\9614" ]
      , [ ESymbol Ord "\9630" ]
      ]
    , [ [ EText TextNormal "F" ]
      , [ ESymbol Ord "\9615" ]
      , [ ESymbol Ord "\9631" ]
      ]
    ]
]
>>> mml
<?xml version='1.0' ?>
<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
  <mtable>
    <mtr>
      <mtd columnalign="center" />
      <mtd columnalign="center">
        <mtext mathvariant="normal">258</mtext>
      </mtd>
      <mtd columnalign="center">
        <mtext mathvariant="normal">259</mtext>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">0</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▀</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▐</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">1</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▁</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>░</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">2</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▂</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▒</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">3</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▃</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▓</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">4</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▄</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▔</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">5</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▅</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▕</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">6</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▆</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▖</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">7</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▇</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▗</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">8</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>█</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▘</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">9</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▉</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▙</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">A</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▊</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▚</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">B</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▋</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▛</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">C</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▌</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▜</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">D</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▍</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▝</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">E</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▎</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▞</mi>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="center">
        <mtext mathvariant="normal">F</mtext>
      </mtd>
      <mtd columnalign="center">
        <mi>▏</mi>
      </mtd>
      <mtd columnalign="center">
        <mi>▟</mi>
      </mtd>
    </mtr>
  </mtable>
</math>