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SEARCH MATHEMATICA 8 DOCUMENTATION
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE
DOCUMENTATION CENTER
FOR THE LATEST INFORMATION.
Mathematica
>
Complex Numbers
>
Built-in
Mathematica
Symbol
Complex Numbers
Numerical Functions
Tutorials »
|
Re
Abs
Arg
ComplexExpand
Complex
I
Conjugate
See Also »
|
Complex Numbers
Functions of Complex Variables
Mathematical Functions
More About »
Im
Im
[
z
]
gives the imaginary part of the complex number
.
MORE INFORMATION
Mathematical function, suitable for both symbolic and numerical manipulation.
Im
[
expr
]
is left unevaluated if
expr
is not a numeric quantity.
Im
automatically threads over lists.
EXAMPLES
CLOSE ALL
Basic Examples
(3)
Find the imaginary part of a complex number:
In[1]:=
Out[1]=
Plot the imaginary part of a complex-valued function:
In[1]:=
Out[1]=
Use
Im
to specify regions of the complex plane:
In[1]:=
Out[1]=
Scope
(5)
Generalizations & Extensions
(1)
Applications
(3)
Properties & Relations
(7)
Possible Issues
(1)
Neat Examples
(1)
SEE ALSO
Re
Abs
Arg
ComplexExpand
Complex
I
Conjugate
TUTORIALS
Complex Numbers
Numerical Functions
RELATED LINKS
MathWorld
The Wolfram Functions Site
MORE ABOUT
Complex Numbers
Functions of Complex Variables
Mathematical Functions
New in 1
© 2013 Wolfram Research, Inc.
.
EXAMPLES
Basic Examples 
Scope 