DocumentationMathematicaThe Mathematica BookMathematica Reference GuideListing of Named Characters
ImaginaryI
\[ImaginaryI]
Alias: ii. Letter-like form with built-in value. is interpreted by default as the symbol I, representing . See Section 3.10.1, Section 3.10.2 and Section 3.10.3. See also: \[ImaginaryJ] , \[ExponentialE] .