rec-outerproduct1

outer product

W3C sample	WIRIS
	$A\otimes B$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <apply>
    <outerproduct/>
    <ci type="vector">A</ci>
    <ci type="vector">B</ci>
  </apply>
</math>

Author: MathML 2 Recomendation