miSmathsize17

Test of named mathsize attribute

W3C sample	WIRIS
	$A + A + A + B$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mi mathsize="small">A</mi>
  <mo>+</mo>
  <mi mathsize="big">A</mi>
  <mo>+</mo>
  <mi mathsize="3ex">A</mi>
  <mo>+</mo>
  <mi>B</mi>
</math>

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