rec-partialdiff5

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <apply>
    <partialdiff/>
    <apply>
      <csymbol cd="list1">list</csymbol>
      <cn>1</cn>
      <cn>1</cn>
      <cn>3</cn>
    </apply>
    <semantics>
      <ci>f</ci>
      <annotation-xml cd="mathmltypes" name="type" encoding="MathML-Content">
        <ci>fn</ci>
      </annotation-xml>
    </semantics>
  </apply>
</math>

Author: MathML 2 Recommendation