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Built-in Functions / Programming / Evaluation Control /

Unevaluated

Usage

• Unevaluated[expr] represents the unevaluated form of expr when it appears as the argument to a function.


Notes

• f[Unevaluated[expr]] effectively works by temporarily setting attributes so that f holds its argument unevaluated, then evaluating f[expr].
• Example: Length[Unevaluated[5+6]]LongRightArrow .
• See Section 2.6.5.
• See also: Hold, HoldFirst, ReplacePart.
• New in Version 2.
Further Examples


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