This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)
Mathematica Character Name

\[HBar]

  • Unicode: 210F.
  • Alias: Esc hb Esc.
  • Letter-like form.
  • Used in physics to denote Planck's constant divided by 2pi; sometimes called Dirac's constant.