passed

dir_math_ltr

This tests dir='ltr' on the math tag

W3C sample	WIRIS
	$a b c$

<math xmlns="http://www.w3.org/1998/Math/MathML" dir="ltr">
  <mi>a</mi>
  <mi>b</mi>
  <mi>c</mi>
</math>

Author: Neil Soiffer