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MathGroup Archive 2002

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Absolute Value of Complex Numbers

  • To: mathgroup at
  • Subject: [mg35196] Absolute Value of Complex Numbers
  • From: "Kyle Davis" <kyledavis at>
  • Date: Mon, 1 Jul 2002 03:34:53 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

Abs[2 Exp[3 * i]]
answer = 2

Abs[2 Exp[k * i]]
answer = 2 Exp[-Im[k]]

Isn't the second answer supposed to be the same with the first one,
regardless with the value of k? How do I make the second calculation give me
the right answer?

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