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DoubleContourIntegral

DoubleContourIntegral \[DoubleContourIntegral]

FilledSmallSquare Compound operator (see Section A.2.7).

FilledSmallSquare f s is by default interpreted as ContourIntegral[f, s].

FilledSmallSquare Used to indicate integrals over closed surfaces.

FilledSmallSquare See The Mathematica Book: Section 3.10.4.

FilledSmallSquare See also: \[ContourIntegral] , \[Integral] .

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