<<< omml
<?xml version="1.0" encoding="UTF-8"?>
<m:oMathPara>
  <m:oMathParaPr>
    <m:jc m:val="center" />
  </m:oMathParaPr>
  <m:oMath>
    <m:nary>
      <m:naryPr>
        <m:chr m:val="∫" />
        <m:limLoc m:val="subSup" />
        <m:supHide m:val="off" />
        <m:supHide m:val="off" />
      </m:naryPr>
      <m:e>
        <m:sSup>
          <m:e>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>x</m:t>
            </m:r>
          </m:e>
          <m:sup>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>x</m:t>
            </m:r>
          </m:sup>
        </m:sSup>
      </m:e>
      <m:sub>
        <m:r>
          <m:rPr>
            <m:sty m:val="p" />
          </m:rPr>
          <m:t>0</m:t>
        </m:r>
      </m:sub>
      <m:sup>
        <m:r>
          <m:rPr>
            <m:sty m:val="p" />
          </m:rPr>
          <m:t>1</m:t>
        </m:r>
      </m:sup>
    </m:nary>
    <m:r>
      <m:rPr>
        <m:sty m:val="p" />
      </m:rPr>
      <m:t> </m:t>
    </m:r>
    <m:r>
      <m:rPr>
        <m:sty m:val="p" />
      </m:rPr>
      <m:t>d</m:t>
    </m:r>
    <m:r>
      <m:rPr>
        <m:sty m:val="p" />
      </m:rPr>
      <m:t>x</m:t>
    </m:r>
    <m:r>
      <m:rPr>
        <m:sty m:val="p" />
      </m:rPr>
      <m:t>=</m:t>
    </m:r>
    <m:nary>
      <m:naryPr>
        <m:chr m:val="∑" />
        <m:limLoc m:val="undOvr" />
        <m:supHide m:val="off" />
        <m:supHide m:val="off" />
      </m:naryPr>
      <m:e>
        <m:r>
          <m:rPr>
            <m:sty m:val="p" />
          </m:rPr>
          <m:t>(</m:t>
        </m:r>
        <m:r>
          <m:rPr>
            <m:sty m:val="p" />
          </m:rPr>
          <m:t>−</m:t>
        </m:r>
        <m:r>
          <m:rPr>
            <m:sty m:val="p" />
          </m:rPr>
          <m:t>1</m:t>
        </m:r>
        <m:sSup>
          <m:e>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>)</m:t>
            </m:r>
          </m:e>
          <m:sup>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>n</m:t>
            </m:r>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>+</m:t>
            </m:r>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>1</m:t>
            </m:r>
          </m:sup>
        </m:sSup>
        <m:r>
          <m:rPr>
            <m:sty m:val="p" />
          </m:rPr>
          <m:t> </m:t>
        </m:r>
        <m:sSup>
          <m:e>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>n</m:t>
            </m:r>
          </m:e>
          <m:sup>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>−</m:t>
            </m:r>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>n</m:t>
            </m:r>
          </m:sup>
        </m:sSup>
      </m:e>
      <m:sub>
        <m:r>
          <m:rPr>
            <m:sty m:val="p" />
          </m:rPr>
          <m:t>n</m:t>
        </m:r>
        <m:r>
          <m:rPr>
            <m:sty m:val="p" />
          </m:rPr>
          <m:t>=</m:t>
        </m:r>
        <m:r>
          <m:rPr>
            <m:sty m:val="p" />
          </m:rPr>
          <m:t>1</m:t>
        </m:r>
      </m:sub>
      <m:sup>
        <m:r>
          <m:rPr>
            <m:sty m:val="p" />
          </m:rPr>
          <m:t>∞</m:t>
        </m:r>
      </m:sup>
    </m:nary>
  </m:oMath>
</m:oMathPara>

>>> native
[ ESubsup (ESymbol Op "\8747") (ENumber "0") (ENumber "1")
, ESuper (EIdentifier "x") (EIdentifier "x")
, ESpace (1 % 6)
, EIdentifier "d"
, EIdentifier "x"
, ESymbol Rel "="
, EUnderover
    True
    (ESymbol Op "\8721")
    (EGrouped [ EIdentifier "n" , ESymbol Rel "=" , ENumber "1" ])
    (ESymbol Ord "\8734")
, EGrouped
    [ ESymbol Open "("
    , ESymbol Bin "\8722"
    , ENumber "1"
    , ESuper
        (ESymbol Close ")")
        (EGrouped [ EIdentifier "n" , ESymbol Bin "+" , ENumber "1" ])
    , ESpace (1 % 6)
    , ESuper
        (EIdentifier "n")
        (EGrouped [ ESymbol Bin "\8722" , EIdentifier "n" ])
    ]
]