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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.
  • See the Mathematica book: Section 1.1.3, Section 1.1.5Section 3.2.8.
  • See also: Re, Im, ComplexExpand, GaussianIntegers.

    Further Examples

    The definition of I and a famous result.

    In[1]:=

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    The solution to this equation involves complex numbers.

    In[2]:=

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    You can get rid of insignificant imaginary parts with Chop.

    In[3]:=

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    In[4]:=

    Out[4]=