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Re: problem in expression

  • To: mathgroup at smc.vnet.net
  • Subject: [mg99912] Re: problem in expression
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Tue, 19 May 2009 06:44:34 -0400 (EDT)
  • References: <gurckc$gri$1@smc.vnet.net>

Hi,

and 0 is not 0. because 0 is exact Zero while 0. is a floating point
zero and can be 0.000000000000001 or 0.0000000001

Regards
   Jens

Obaid Ur Rehman wrote:
> I am wondering if some one can help me in the following problem.
> 
> 
> 
> Whenever I solve or do some manipulation with certain matrix or vector,
> it gives me result in the following form e.g.
> 
> 
> 
> F=0.x1+0.x2+1.x3+0.x4
> 
> 
> 
> It is clear that F=x3 but why the expression contains multiples of
> zeros. If certain vector is multiplied by zero the result should be zero
> and it must not be appear in the final expression.
> 
> 
> 
> Could you people please help me out to get rid of these zeros in the
> final expression?
> 
> Obaid
> 
> 
> 


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