This is documentation for Mathematica 5, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)

Documentation / Mathematica / Built-in Functions / Programming / Pattern Matching /


FilledSmallSquare _ or Blank[ ] is a pattern object that can stand for any Mathematica expression.

FilledSmallSquare _h or Blank[h] can stand for any expression with head h.

FilledSmallSquare The head h in _h cannot itself contain pattern objects.

FilledSmallSquare See Section 2.3.1.

FilledSmallSquare See also: Pattern, Optional, ForAll.

FilledSmallSquare New in Version 1.

Further Examples