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, Section 3.10.4. See also: \[Times], \[Cross].
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\[Star]
star
