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Mathematica >

BUILT-IN MATHEMATICA SYMBOL

Identity

Identity[expr]
gives expr (the identity operation).

Out[1]=

Plot a collection of functions together with the

line:

Identity is removed from functional composition:

The first derivative of the identity is the constant 1:

Sequence acts as a general identity for several arguments:

Identity as a pure function:

Tabulate square roots of values without using auxiliary variables:

New in 1

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