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: 2236.
  • Alias: Esc : Esc.
  • Infix operator.
  • x ∶ y is by default interpreted as Colon[x, y].
  • Used in mathematics to mean "such that".
  • Occasionally used to indicate proportion.
  • Used to separate hours and minutes in times.