Arg

Usage

• Arg[z] gives the argument of the complex number z.

Notes

• Mathematical function (see Section A.3.10).

• 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

• See also: ArcTan, Sign.

• New in Version 1.