failed

maction-03

You should see transposed matrix once you place mouse pointer over math expression below

W3C sample WIRIS
0 1 2 3 T 0 2 1 3
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <maction actiontype="tooltip">
    <mrow>
      <msup>
        <mrow>
          <mfenced>
            <mrow>
              <mtable>
                <mtr>
                  <mtd>
                    <mn>0</mn>
                  </mtd>
                  <mtd>
                    <mn>1</mn>
                  </mtd>
                </mtr>
                <mtr>
                  <mtd>
                    <mn>2</mn>
                  </mtd>
                  <mtd>
                    <mn>3</mn>
                  </mtd>
                </mtr>
              </mtable>
            </mrow>
          </mfenced>
        </mrow>
        <mo>T</mo>
      </msup>
    </mrow>
    <mrow>
      <mfenced>
        <mrow>
          <mtable>
            <mtr>
              <mtd>
                <mn>0</mn>
              </mtd>
              <mtd>
                <mn>2</mn>
              </mtd>
            </mtr>
            <mtr>
              <mtd>
                <mn>1</mn>
              </mtd>
              <mtd>
                <mn>3</mn>
              </mtd>
            </mtr>
          </mtable>
        </mrow>
      </mfenced>
    </mrow>
  </maction>
</math>

Author: George Chavchanidze, Opera Software ASA