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 Documentation / Mathematica / Built-in Functions / Programming / Functional Programming  /
Identity

  • Identity[ expr ] gives expr (the identity operation).
  • See the Mathematica book: Section 2.2.9.
  • See also: Composition, Through, InverseFunction, Sequence, Hold.

    Further Examples

    The identity function returns its argument.

    In[1]:=

    Out[1]=