Example ex4-050

Prev: ex4-049

Next: ex4-051

2 x y x 4 f

<math>
<apply>
  <partialdiff/>
  <bvar>
    <degree><cn>2</cn></degree>
    <ci>x</ci>
  </bvar>
  <bvar><ci>y</ci></bvar>
  <bvar><ci>x</ci></bvar>
  <degree><cn>4</cn></degree>
  <ci type="fn">f</ci>
</apply>
</math>