rec-image1

W3C sample	WIRIS
	$\mathop{\mathrm{image}}(\sin )=\left[-1 , 1\right]$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <apply>
    <eq/>
    <apply>
      <image/>
      <sin/>
    </apply>
    <interval>
      <cn>-1</cn>
      <cn>1</cn>
    </interval>
  </apply>
</math>

Author: MathML 2 Recommendation