Mathematica > Core Language > Rules & Patterns > Patterns > Verbatim
BUILT-IN MATHEMATICA SYMBOL

Verbatim

Verbatim[expr]
represents expr in pattern matching, requiring that expr be matched exactly as it appears, with no substitutions for blanks or other transformations.

DetailsDetails

  • Verbatim[x_] will match only the actual expression x_.
  • Verbatim is useful in setting up rules for transforming other transformation rules.
  • Verbatim[expr] does not maintain expr in an unevaluated form.

ExamplesExamplesopen allclose all

Basic Examples (2)Basic Examples (2)

Match any expression:

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Match only the pattern x_:

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Changes the pattern only when it is explicitly:

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Scope (1)Scope (1)

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