This is documentation for Mathematica 5, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)

Documentation / Mathematica / Built-in Functions / Mathematical Functions / Numerical Functions /

Arg

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

FilledSmallSquare Mathematical function (see Section A.3.10).

FilledSmallSquare Arg[z] is left unevaluated if z is not a numeric quantity.

FilledSmallSquare Arg[z] gives the phase angle of z in radians.

FilledSmallSquare The result from Arg[z] is always between and .

FilledSmallSquare Arg[z] has a branch cut discontinuity in the complex z plane running from to .

FilledSmallSquare See Section 1.1.5 and Section 3.2.2.

FilledSmallSquare See also: ArcTan, Sign.

FilledSmallSquare New in Version 1.

Further Examples