tendsto type = 'below' with <apply>
<math xmlns="http://www.w3.org/1998/Math/MathML"> <apply> <tendsto type="below"/> <apply> <power/> <ci>x</ci> <cn>2</cn> </apply> <apply> <power/> <ci>a</ci> <cn>2</cn> </apply> </apply> </math>
Author: Design Science, Inc. (E. Cannon, E. Tabacman, R.Miner)