This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)


  • Unicode: 2297.
  • Alias: Esc c* Esc.
  • Infix and prefix operator.
  • Used in mathematics for various operations related to multiplication, such as direct or tensor products.
  • Also sometimes used to indicate a vector pointing into the page.