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File:	Topics/StretchyChars/Vertically/abs1
CVS-ID:
Author:	Design Science, Inc. (E. Cannon, E. Tabacman, R.Miner)
Description:	keyboard abs
Sample Rendering:

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Source Code:

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mo>|</mo>
  <mi>x</mi>
  <mo>|</mo>
</math>