mprescripts-01

Right hand side of equation should look like mirrored copy of left hand side

W3C sample	WIRIS
	$${}_{\mathrm{Y}}{}^{\mathrm{X}}\mathrm{A}={\mathrm{A}}_{\mathrm{Y}}^{\mathrm{X}}$$

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <mmultiscripts>
    <mi mathvariant="normal">A</mi>
    <mprescripts/>
    <mi mathvariant="normal">Y</mi>
    <mi mathvariant="normal">X</mi>
  </mmultiscripts>
  <mo>=</mo>
  <msubsup>
    <mi mathvariant="normal">A</mi>
    <mi mathvariant="normal">Y</mi>
    <mi mathvariant="normal">X</mi>
  </msubsup>
</math>

Author: George Chavchanidze, Opera Software ASA