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


  • Unicode: 2248.
  • Alias: Esc ~~ Esc.
  • Infix similarity operator.
  • x ≈ y is by default interpreted as TildeTilde[x, y].
  • Used for various notions of approximate or asymptotic equality.
  • Used in pure mathematics to indicate homeomorphism.