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Evaluation Control
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Unevaluated
Unevaluated
[
expr
]
represents the unevaluated form of
expr
when it appears as the argument to a function.
MORE INFORMATION
f
[Unevaluated[
expr
]]
effectively works by temporarily setting attributes so that
f
holds its argument unevaluated, then evaluating
f
[
expr
]
.
EXAMPLES
CLOSE ALL
Basic Examples
(1)
Feed an unevaluated expression to
Length
:
In[1]:=
Out[1]=
Applications
(1)
Properties & Relations
(3)
SEE ALSO
Hold
HoldFirst
HoldAll
HoldComplete
ReplacePart
MapAt
TUTORIALS
Evaluation
Non-Standard Evaluation
MORE ABOUT
Evaluation Control
New in 2
© 2008 Wolfram Research, Inc.
EXAMPLES
Basic Examples 
Applications 