power6

W3C sample	WIRIS
	$e^{x^j}$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <apply>
    <exp/>
    <apply>
      <power/>
      <ci>x</ci>
      <ci>j</ci>
    </apply>
  </apply>
</math>

Author: Design Science, Inc. (E. Cannon, E. Tabacman, R.Miner)