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MathGroup Archive 1999

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Re: ARghh!!

  • To: mathgroup at smc.vnet.net
  • Subject: [mg18865] Re: ARghh!!
  • From: Paul Abbott <paul at physics.uwa.edu.au>
  • Date: Sun, 25 Jul 1999 03:30:05 -0400
  • Organization: University of Western Australia
  • References: <7n12tn$bd7@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

"O. Matt Umurhan" wrote:

> I am having the worst time dealing with a complex numbered expression.
> The problem is this:  I have a numerical expression I wish mathematica
> to evaluate, the expression happens to be complex.  So, I have it
> do the evaluation and for output it gives me, for example,
>
> Out[122]=       ((1+ 2 I) - (43 - 4 I))
>
> when the ouput ought to read:
>
> Out[123]=      -42 - 2 I

Actually, you mean -42+6I.  I don't see why you are getting an
unsimplified result. If you enter ((1+ 2 I) - (43 - 4 I)) into an input
cell it does evaluate as expected. Perhaps you need to show some of the
steps leading to this unsimplified result?

____________________________________________________________________
Paul Abbott                                   Phone: +61-8-9380-2734
Department of Physics                           Fax: +61-8-9380-1014
The University of Western Australia
Nedlands WA  6907                     mailto:paul at physics.uwa.edu.au
AUSTRALIA                            http://physics.uwa.edu.au/~paul

            God IS a weakly left-handed dice player
____________________________________________________________________




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