rec-cn1

W3C sample	WIRIS
	$12345.7 12345 AB3 12342 2342342 12.3 5 2 3.1415 π$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <list>
    <cn type="real">12345.7</cn>
    <cn type="integer">12345</cn>
    <cn type="integer" base="16">AB3</cn>
    <cn type="rational">12342
      <sep/> 2342342
    </cn>
    <cn type="complex-cartesian">12.3
      <sep/> 5
    </cn>
    <cn type="complex-polar">2
      <sep/> 3.1415
    </cn>
    <cn type="constant"> &#x003C0;</cn>
  </list>
</math>

Author: MathML 2 Recommendation