MathGroup Archive 2004

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Arg[z] that works with zero argument?


I'd like a simple Arg[z] function that would "work" [return some simple 
value; zero is OK] for zero argument values, even if z is a list.

My simplest kludge so far is

    myArg[z_] := Module[{eps=10^(-17)}, Arg[z+eps]]

Seems to work OK so far -- better ways to do this?


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