DocumentationMathematicaThe Mathematica BookMathematica Reference GuideListing of Named Characters
DoubleContourIntegral
\[DoubleContourIntegral]
Compound operator (see Section A.2.7). f s is by default interpreted as ContourIntegral[f, s]. Used to indicate integrals over closed surfaces. See Section 3.10.4. See also: \[ContourIntegral] , \[Integral] .