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MathGroup Archive 2004

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Re: Poles and Complex Factoring

  • To: mathgroup at smc.vnet.net
  • Subject: [mg52097] Re: [mg6011] Poles and Complex Factoring
  • From: bokat02 at hotmail.com (bokat)
  • Date: Wed, 10 Nov 2004 04:46:08 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

the complex factoring is wrong 

On 11 Feb 1997 01:29:40 -0500, peter wrote:
>Dear All,
>
>I know how to calculate the residue of a fuction using Mathematica, but how
can I 
>use Mathematica to calculate the order of a complex pole? 
>
>It would also be nice for Mathematica to tell me if a particular singularity
is an 
>essential singularity, removable singularity or a pole...but this is
not 
>necessary; just icing on the cake.
>
>Also, is there a way to factor polynomials with imaginary roots?  
>Something like: 
>
>    Factor[ x^2 + 2x + 10 ]  =  (x - 1 + 4.5 I)(x - 1 - 4.5 I)
>
>Much thanks in advance!
>
>Peter
>
>--
>Birthdays are good for you:  A federal funded project has recently
determined
>that people with the most number of birthdays will live the
longest.....
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