sophomores_dream.test

<<< native
[ ESubsup (ESymbol Op "\8747") (ENumber "0") (ENumber "1")
, ESuper (EIdentifier "x") (EIdentifier "x")
, ESpace (1 % 6)
, EStyled TextNormal [ EIdentifier "d" ]
, EIdentifier "x"
, ESymbol Rel "="
, EUnderover
    True
    (ESymbol Op "\8721")
    (EGrouped [ EIdentifier "n" , ESymbol Rel "=" , ENumber "1" ])
    (ESymbol Ord "\8734")
, EGrouped
    [ ESuper
        (EDelimited
           "(" ")" [ Right (ESymbol Op "\8722") , Right (ENumber "1") ])
        (EGrouped [ EIdentifier "n" , ESymbol Bin "+" , ENumber "1" ])
    , ESpace (1 % 6)
    , ESuper
        (EIdentifier "n")
        (EGrouped [ ESymbol Op "\8722" , EIdentifier "n" ])
    ]
]
>>> mml
<?xml version='1.0' ?>
<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <msubsup>
      <mo>∫</mo>
      <mn>0</mn>
      <mn>1</mn>
    </msubsup>
    <msup>
      <mi>x</mi>
      <mi>x</mi>
    </msup>
    <mspace width="0.167em" />
    <mstyle mathvariant="normal">
      <mi>d</mi>
    </mstyle>
    <mi>x</mi>
    <mo>=</mo>
    <munderover>
      <mo>∑</mo>
      <mrow>
        <mi>n</mi>
        <mo>=</mo>
        <mn>1</mn>
      </mrow>
      <mo accent="false">∞</mo>
    </munderover>
    <mrow>
      <msup>
        <mrow>
          <mo stretchy="true" form="prefix">(</mo>
          <mo>−</mo>
          <mn>1</mn>
          <mo stretchy="true" form="postfix">)</mo>
        </mrow>
        <mrow>
          <mi>n</mi>
          <mo>+</mo>
          <mn>1</mn>
        </mrow>
      </msup>
      <mspace width="0.167em" />
      <msup>
        <mi>n</mi>
        <mrow>
          <mo>−</mo>
          <mi>n</mi>
        </mrow>
      </msup>
    </mrow>
  </mrow>
</math>