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  • NumericFunction is an attribute that can be assigned to a symbol f to indicate that f[ , , ... ] should be considered a numeric quantity whenever all the are numeric quantities.
  • Most standard built-in mathematical functions have the attribute NumericFunction.
  • NumericQ checks the NumericFunction attribute of every function it encounters.
  • If you assign the attribute NumericFunction to a function that does not yield numerical values, then NumericQ will give misleading results.
  • See the Mathematica book: Section 2.5.3Section 3.1.2.
  • See also: NumericQ, NHoldAll.

    Further Examples

    E is a numeric quantity and NumericFunction is an attribute of Sin.