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Mathematica > Representation of Numbers >

Built-in Mathematica Symbol

InexactNumberQ

InexactNumberQ[expr]
returns True if expr is an inexact real or complex number, and returns False otherwise.

InexactNumberQ[expr] gives True if expr has head Real, or is a complex number either of whose components have head Real.

InexactNumberQ tests whether an object is explicitly an inexact number:

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