maction-05

Once you place mouse pointer over math expression below you should see its text equivalent

W3C sample	WIRIS
	$$x^2-1=0\text{(x − 1)(x + 1) = 0}$$

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <maction actiontype="tooltip">
    <mrow>
      <msup>
        <mi>x</mi>
        <mn>2</mn>
      </msup>
      <mo>−</mo>
      <mn>1</mn>
      <mo>=</mo>
      <mn>0</mn>
    </mrow>
    <mtext>(x − 1)(x + 1) = 0</mtext>
  </maction>
</math>

Author: George Chavchanidze, Opera Software ASA