Star
\[Star]
Alias: star. Infix operator. x y is by default interpreted as Star[x, y]. Used to denote convolution and generalized forms of multiplication. Sometimes used in prefix form to indicate dual. Not the same as \[SixPointedStar] or \[RawStar]. \[RawStar] is the character entered for superscripts. See The Mathematica Book: Section 3.10.1 and Section 3.10.4. See also: \[Times] , \[Cross] .