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  • Alias: int.
  • Compound operator with built-in evaluation rules.

  • f

    x is by default interpreted as Integrate[f,x].

  • f

    x is by default interpreted as Integral[f,


    ]. a and b must appear as a subscript and superscript, respectively.

  • a


    x is by default output as



    x whenever is an operator with a precedence lower than .
  • Note the use of , entered as dd or \[DifferentialD], rather than ordinary d.
  • See The Mathematica Book:

    Section 1.10.4, Section 1.10.4Section 3.10.4.
  • See also: \[ContourIntegral].