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LeftDoubleBracket

\[LeftDoubleBracket]
  • Alias: [[.
  • Compound operator with built-in evaluation rules.
  • m


    i,j, ... is by default interpreted as Part[


    m,i,j, ... ].
  • Sometimes used in mathematics to indicate a class of algebraic objects with certain variables or extensions.
  • Extensible character; grows by default to limited size.
  • See The Mathematica Book: Section 1.10.4Section 3.10.4.
  • See also: \[RawLeftBracket], \[LeftDoubleBracketingBar].