Alias: .. Infix operator. x
y is by default interpreted as CenterDot[x,y]. Used to indicate various forms of multiplication, particularly dot products of vectors. Sometimes used to indicate concatenation or composition. Used in the British mathematical tradition as a decimal point. See The Mathematica Book: Section 3.10.1, Section 3.10.4. See also: \[CenterEllipsis], \[RawDot], \[CircleDot].