This is documentation for Mathematica 7, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)
Mathematica Character Name


  • Unicode: F604.
  • Alias: Esc r| 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 right-pointing tee to indicate direction.
  • Extensible character.