I

I

represents the imaginary unit .

Details

Examples

open allclose all

Basic Examples  (3)

I can be entered as ii (for "imaginary i"):

In[1]:=
Click for copyable input
Out[1]=

Generate from square roots of negative real numbers:

In[1]:=
Click for copyable input
Out[1]=

Use I in exact and approximate calculations:

In[1]:=
Click for copyable input
Out[1]=
In[2]:=
Click for copyable input
Out[2]=

Scope  (2)

Generalizations & Extensions  (6)

Applications  (2)

Properties & Relations  (12)

Possible Issues  (9)

Neat Examples  (2)

See Also

Complex  Re  Im  ComplexExpand  GaussianIntegers

Tutorials

Introduced in 1988
(1.0)
| Updated in 1999
(4.0)