MathGroup Archive 1997

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Re: Complex Numbers

  • To: mathgroup at
  • Subject: [mg5963] Re: Complex Numbers
  • From: "John L. Seger" <jseger at>
  • Date: Wed, 5 Feb 1997 21:12:01 -0500
  • Organization: cyberTours Inc. (
  • Sender: owner-wri-mathgroup at

This may be a rather verbose method, but it works for me,

note: x is a list of real and complex entities

GetReal[x_] := Select[Cases[Map[#[[2]]&, Flatten[x]],_Real],#>0&][[1]];

This will give you the first real, non-negative result.

I hope this helps.

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