DocumentationMathematicaThe Mathematica BookMathematica Reference GuideListing of Named Characters
Sigma
\[Sigma]
Aliases: s, sigma. Greek letter. Used in TraditionalForm for DivisorSigma and WeierstrassSigma. See Section 1.10.1 and Section 3.10.3. See also: \[CapitalSigma] , \[FinalSigma] .