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FilledSmallSquare Reals represents the domain of real numbers, as in x Reals.

FilledSmallSquare x Reals evaluates immediately only if x is a numeric quantity.

FilledSmallSquare Simplify[expr Reals] can be used to try to determine whether an expression corresponds to a real number.

FilledSmallSquare Within Simplify and similar functions, objects that satisfy inequalities are always assumed to be real.

FilledSmallSquare Reals is output in TraditionalForm as .

FilledSmallSquare See Section 1.4.6, Section 3.3.10 and Section 3.4.9.

FilledSmallSquare See also: Element, Simplify, Real, Integers, Complexes, Algebraics, ComplexExpand, PowerExpand.

FilledSmallSquare New in Version 4.

Further Examples