ag-gipp/GoUldI

<math 
  xmlns="http://www.w3.org/1998/Math/MathML" display="block" alttext="pi slash 4">
  <semantics>
    <mrow data-semantic-type="infixop" data-semantic-role="division" data-semantic-id="3" data-semantic-children="0,2" data-semantic-content="1">
      <mi data-semantic-type="identifier" data-semantic-role="greekletter" data-semantic-font="italic" data-semantic-id="0" data-semantic-parent="3">π
        <!-- π -->
      </mi>
      <mrow class="MJX-TeXAtom-ORD">
        <mo data-semantic-type="operator" data-semantic-role="division" data-semantic-id="1" data-semantic-parent="3" data-semantic-operator="infixop,/">/</mo>
      </mrow>
      <mn data-semantic-type="number" data-semantic-role="integer" data-semantic-font="normal" data-semantic-id="2" data-semantic-parent="3">4</mn>
    </mrow>
    <annotation encoding="application/x-tex">\pi /4</annotation>
  </semantics>
</math>