<math xmlns="http://www.w3.org/1998/Math/MathML">
<apply>
<tendsto/>
<vector>
<ci>x</ci>
<ci>y</ci>
</vector>
<vector>
<apply>
<ci type="fn">f</ci>
<ci>x</ci>
<ci>y</ci>
</apply>
<apply>
<ci type="fn">g</ci>
<ci>x</ci>
<ci>y</ci>
</apply>
</vector>
</apply>
</math>
Author: MathML 2 Recomendation