I

I represents the imaginary unit .

Numbers containing I are converted to the type Complex.

I can be entered in StandardForm and InputForm as , ii or \[ImaginaryI].

, jj and \[ImaginaryJ] can also be used.

In StandardForm and TraditionalForm, I is output as .

See The Mathematica Book: Section 1.1.3, Section 1.1.5 and Section 3.2.8.

See also: Re, Im, ComplexExpand, GaussianIntegers.

Further Examples