mn2

W3C sample	WIRIS
	$2,0.123,\mathrm{1,000,000},2.1e10,\mathrm{0xFFEF},\mathrm{MCMLXIX},\mathrm{twenty\; one}$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <mn>2</mn>
    <mo>,</mo>
    <mn>0.123</mn>
    <mo>,</mo>
    <mn>1,000,000</mn>
    <mo>,</mo>
    <mn>2.1e10</mn>
    <mo>,</mo>
    <mn>0xFFEF</mn>
    <mo>,</mo>
    <mn>MCMLXIX</mn>
    <mo>,</mo>
    <mn>twenty one</mn>
  </mrow>
</math>

Author: Wolfram Research