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Built-in
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Symbol
Complex Numbers
Numerical Functions
Tutorials »
|
Im
I
Abs
Arg
Complex
ComplexExpand
See Also »
|
Complex Numbers
Functions of Complex Variables
Mathematical Functions
More About »
Re
Re
[
z
]
gives the real part of the complex number
z
.
MORE INFORMATION
Mathematical function, suitable for both symbolic and numerical manipulation.
Re
[
expr
]
is left unevaluated if
expr
is not a numeric quantity.
Re
automatically threads over lists.
EXAMPLES
CLOSE ALL
Basic Examples
(3)
Find the real part of a complex number:
In[1]:=
Out[1]=
Plot the real part of a complex-valued function:
In[1]:=
Out[1]=
Use
Re
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
Im
I
Abs
Arg
Complex
ComplexExpand
TUTORIALS
Complex Numbers
Numerical Functions
RELATED LINKS
Demonstrations with Re
(
Wolfram Demonstrations Project
)
MathWorld
The Wolfram Functions Site
MORE ABOUT
Complex Numbers
Functions of Complex Variables
Mathematical Functions
New in 1
EXAMPLES
Basic Examples 
Scope 