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Does AbsArg work for generic expressions?

Posted 21 days ago
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Hi... I want get Abs[z] and Arg[z] and I'm using the AbsArg[] command but, it works for 'numeric' complex... For generic expression, I've trouble. Can someone help me?

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2 Replies

It takes some nudging:

FullSimplify[ComplexExpand[AbsArg[1/(I w - 2)^2],
  TargetFunctions -> {Re, Im}],
 Element[w, Reals]]

Arg is not easy to deal with symbolically, because of the discontinuities.

Thanks... :-D

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