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Legacy Documentation

The Mathematical Explorer^TM (2001)

This is documentation for an obsolete product.

Arg Arg[ z ] gives the argument of the complex number z. 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 to . See The Mathematica Book on the web:Section 1.1.5 and Section 3.2.2. See also: ArcTan, Sign. Further Examples