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LeftAngleBracket

\[LeftAngleBracket]
  • Alias: <.
  • Matchfix operator.



  • x is by default interpreted as AngleBracket[


    x].
  • Used in the form


    x to indicate expected or average value.
  • Called bra in quantum mechanics.
  • Used in the form


    x,y to indicate various forms of inner product.
  • Used in the form


    x,y, ... to denote an ordered set of objects.
  • Not the same as \[RawLess].
  • Extensible character; grows by default to limited size.
  • See The Mathematica Book:


    Section 3.10.4.
  • See also: \[RightAngleBracket], \[LeftFloor], \[LeftCeiling].