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Square \[Square]

FilledSmallSquare Alias: AliasIndicatorsqAliasIndicator.

FilledSmallSquare Prefix operator.

FilledSmallSquare x is by default interpreted as Square[x].

FilledSmallSquare Used in mathematical physics to denote the d'Alembertian operator.

FilledSmallSquare Sometimes used in number theory to indicate a quadratic residue.

FilledSmallSquare Not the same as \[EmptySquare].

FilledSmallSquare See The Mathematica Book: Section 3.10.4.

FilledSmallSquare See also: \[Del] .