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MathGroup Archive 2002

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Re: Absolute Value of Complex Numbers

  • To: mathgroup at smc.vnet.net
  • Subject: [mg35200] Re: Absolute Value of Complex Numbers
  • From: "Kevin J. McCann" <kjm@KevinMcCann>
  • Date: Tue, 2 Jul 2002 02:11:51 -0400 (EDT)
  • References: <afp0oh$h08$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Mathematica is correct. suppose k=2*i, then

2 Exp[k*i]=2 Exp[-2]
and
Abs[ ] = 2 Exp[-2i]

Kevin
"Kyle Davis" <kyledavis at nowhere.com> wrote in message
news:afp0oh$h08$1 at smc.vnet.net...
> 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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