This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
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Mathematica Character Name

\[LeftBracketingBar]

  • Unicode: F603.
  • Alias: Esc l| Esc.
  • Matchfix operator.
  • Used in mathematics to indicate absolute value (Abs), determinant (Det), and other notions of evaluating size or magnitude.
  • Drawn in monospaced fonts with a small left-pointing tee to indicate direction.
  • Extensible character.