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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
>
>--
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• Follow-Ups:
  • Re: Re: Poles and Complex Factoring
    • From: yehuda ben-shimol <benshimo@bgu.ac.il>
  • Re: Re: Poles and Complex Factoring
    • From: "yehuda ben-shimol" <benshimo@bgu.ac.il>