Arg

Arg[z]

gives the argument of the complex number z.

Details

  • Mathematical function, suitable for both symbolic and numerical manipulation.
  • Arg[z] is left unevaluated if z is not a numeric quantity.
  • Arg[z] gives the phase angle of z in radians.
  • The result from Arg[z] is always between and .
  • Arg[z] has a branch cut discontinuity in the complex z plane running from to 0.
  • Arg[0] gives 0.
  • Arg automatically threads over lists.

Examples

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Basic Examples  (2)

The result is given in radians:

In[1]:=
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Out[1]=
In[2]:=
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Out[2]=
In[1]:=
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Out[1]=

Scope  (4)

Generalizations & Extensions  (3)

Applications  (3)

Properties & Relations  (6)

Possible Issues  (3)

Neat Examples  (1)

See Also

ArcTan  Sign  Abs  AbsArg  Im  Re  Conjugate  ToPolarCoordinates

Tutorials

Introduced in 1988
(1.0)
| Updated in 2007
(6.0)