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Re: Complex numbers in Mathematica

• To: mathgroup at smc.vnet.net
• Subject: [mg61676] Re: Complex numbers in Mathematica
• From: per at RQNNE.invalid (Per Rønne)
• Date: Wed, 26 Oct 2005 01:01:32 -0400 (EDT)
• References: <200510250107.VAA16788@smc.vnet.net> <djkfq4$n1l$1@smc.vnet.net>
• Reply-to: spam at RQNNE.dk (Per Rønne)
• Sender: owner-wri-mathgroup at wolfram.com

Carl K. Woll <carlw at wolfram.com> wrote:

> 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
> > 
> > The same with Sqrt[-1].
> > 
> > Why doesn't it show the complex numbers? According to the books it
> > should - is it a matter of preferences set?
> > 
> > I'm using Mathematica Teacher's Edition 1.1 on MacOS X.
> 
> It appears that you have the package Miscellaneous`RealOnly` loaded.

Yes, and the problem has been solved.

But why is the thread so often destroyed in this newsgroup?
-- 
Per Erik Rønne

• References:
  • Complex numbers in Mathematica
    • From: per@RQNNE.invalid (Per Rønne)