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File:	Presentation/GeneralLayout/mfrac/mfracBhoriz11
CVS-ID:
Author:	Robert Miner and Jeff Schaefer, Geometry Technologies
Description:	This example tests that <mfrac> does reasonable things with the bar and horizontal centering for wide fractions.
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Source Code:

<math xmlns="http://www.w3.org/1998/Math/MathML"> 
  <mfrac> 
    <mn>1</mn> 
    <mi>a</mi> 
  </mfrac> 
  <mo>-</mo> 
  <mfrac> 
    <mn>1</mn> 
    <mrow> 
      <mi>a</mi> 
      <mo>+</mo> 
      <mi>a</mi> 
      <mo>+</mo> 
      <mi>a</mi> 
      <mo>+</mo> 
      <mi>a</mi> 
    </mrow> 
  </mfrac> 
  <mo>-</mo> 
  <mfrac> 
    <mn>1</mn> 
    <mrow> 
      <mi>a</mi> 
      <mo>+</mo> 
      <mi>a</mi> 
      <mo>+</mo> 
      <mi>a</mi> 
      <mo>+</mo> 
      <mi>a</mi> 
      <mo>+</mo> 
      <mi>a</mi> 
      <mo>+</mo> 
      <mi>a</mi> 
      <mo>+</mo> 
      <mi>a</mi> 
      <mo>+</mo> 
      <mi>a</mi> 
      <mo>+</mo> 
      <mi>a</mi> 
      <mo>+</mo> 
      <mi>a</mi> 
    </mrow> 
  </mfrac> 
</math>