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: 224F.
  • Alias: Esc h= Esc.
  • Infix similarity operator.
  • x ≏ y is by default interpreted as HumpEqual[x, y].
  • Sometimes used to mean "approximately equal" and sometimes "difference between".