<<< native
[ EText TextNormal "Inline down arrows, text style, no line\160"
, EDelimited
    ""
    ""
    [ Left "\8595"
    , Right
        (EFraction
           NormalFrac
           (EGrouped
              [ EMathOperator "sin" , ESymbol Ord "\8289" , EIdentifier "\952" ])
           (EIdentifier "M"))
    , Left "\8595"
    ]
, EText TextNormal "\160the end."
]
>>> omml
<?xml version='1.0' ?>
<m:oMathPara>
  <m:oMathParaPr>
    <m:jc m:val="center" />
  </m:oMathParaPr>
  <m:oMath>
    <m:r>
      <m:rPr>
        <m:nor />
        <m:sty m:val="p" />
      </m:rPr>
      <m:t>Inline down arrows, text style, no line </m:t>
    </m:r>
    <m:d>
      <m:dPr>
        <m:begChr m:val="" />
        <m:endChr m:val="" />
        <m:sepChr m:val="↓" />
        <m:grow />
      </m:dPr>
      <m:e />
      <m:e>
        <m:f>
          <m:fPr>
            <m:type m:val="bar" />
          </m:fPr>
          <m:num>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>sin</m:t>
            </m:r>
            <m:r>
              <m:rPr>
                <m:sty m:val="p" />
              </m:rPr>
              <m:t>&#8289;</m:t>
            </m:r>
            <m:r>
              <m:t>θ</m:t>
            </m:r>
          </m:num>
          <m:den>
            <m:r>
              <m:t>M</m:t>
            </m:r>
          </m:den>
        </m:f>
      </m:e>
      <m:e />
    </m:d>
    <m:r>
      <m:rPr>
        <m:nor />
        <m:sty m:val="p" />
      </m:rPr>
      <m:t> the end.</m:t>
    </m:r>
  </m:oMath>
</m:oMathPara>