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MathGroup Archive 2005

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Re: Complex numbers in Mathematica

  • To: mathgroup at smc.vnet.net
  • Subject: [mg61671] Re: Complex numbers in Mathematica
  • From: Bill Rowe <readnewsciv at earthlink.net>
  • Date: Tue, 25 Oct 2005 01:28:04 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

On 10/24/05 at 9:07 PM, per at RQNNE.invalid (Per Rønne) wrote:

>If I write:

>In[8]=Factor[(5 - 3I) + (-4 + I)x + (1 - I)x^2]

>I get Nonreal::"warning": "Nonreal number encountered." Out[8]=
>Nonreal

>I'm using Mathematica Teacher's Edition 1.1 on MacOS X.

With version 5.2 on MacOS X, I get

In[1]:=Factor[(5 - 3*I) + (-4 + I)*x + (1 - I)*x^2]

Out[1]=((1 + I) - I*x)*((1 + I)*x + (1 - 4*I))

This suggests the issue is with the particular version you have
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