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DOCUMENTATION CENTER SEARCH
Mathematica
>
Mathematics and Algorithms
>
Mathematical Functions
>
Mathematical Constants
>
Built-in
Mathematica
Symbol
Some Mathematical Functions
Complex Numbers
Mathematical Constants
Tutorials »
|
Complex
Re
Im
ComplexExpand
GaussianIntegers
See Also »
|
Complex Numbers
Mathematical Constants
Mathematical Functions
Trigonometric Functions
More About »
I
(
)
I
represents the imaginary unit
.
MORE INFORMATION
Numbers containing
I
are converted to the type
Complex
.
I
can be entered in
StandardForm
and
InputForm
as
,
Esc
ii
Esc
or
\[ImaginaryI]
.
,
Esc
jj
Esc
and
\[ImaginaryJ]
can also be used.
In
StandardForm
and
TraditionalForm
,
I
is output as
.
EXAMPLES
CLOSE ALL
Basic Examples
(3)
I
can be entered as
Esc
ii
Esc
(for "imaginary i"):
In[1]:=
Out[1]=
Generate from square roots of negative real numbers:
In[1]:=
Out[1]=
Use
I
in exact and approximate calculations:
In[1]:=
Out[1]=
In[2]:=
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
Some Mathematical Functions
Complex Numbers
Mathematical Constants
RELATED LINKS
Demonstrations with I
(
Wolfram Demonstrations Project
)
MathWorld
The Wolfram Functions Site
MORE ABOUT
Complex Numbers
Mathematical Constants
Mathematical Functions
Trigonometric Functions
New in 1 | Last modified in 4
. 
, Esc ii Esc or \[ImaginaryI]. 
, Esc jj Esc and \[ImaginaryJ] can also be used. .
EXAMPLES
Basic Examples 
Scope 