<?xml version="1.0"?>
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<!-- File: sin3d_presentation.mml                                           -->
<!-- Author: Pankaj Kamthan                                                 -->
<!-- Date: Oct 20, 1998                                                     -->
<!-- Description: sin(x*y); x in [-pi/2,pi/2], y in [-pi/2,pi/2] in         -->
<!--              MathML Presentation Markup.                               -->
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<math displaystyle='true'>
   <mrow>
     <mi>sin</mi><mo>&ApplyFunction;</mo><mo stretchy='false'>(</mo><mi>x</mi><mo>&InvisibleTimes;</mo><mi>y</mi><mo stretchy='false'>)</mo><mo>;</mo><mi>x</mi><mo>&isin;</mo><mo stretchy='false'>[</mo><mo>-</mo><mfrac>
         <mi>&pi;</mi>
         <mn>2</mn>
      </mfrac>
      <mo>,</mo><mfrac>
         <mi>&pi;</mi>
         <mn>2</mn>
      </mfrac>
      <mo stretchy='false'>]</mo><mo>,</mo><mi>y</mi><mo>&isin;</mo><mo stretchy='false'>[</mo><mo>-</mo><mfrac>
         <mi>&pi;</mi>
         <mn>2</mn>
      </mfrac>
      <mo>,</mo><mfrac>
         <mi>&pi;</mi>
         <mn>2</mn>
      </mfrac>
      <mo stretchy='false'>]</mo>
   </mrow>
</math>
