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MathGroup Archive 2004

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Re: defining variables as Real

  • To: mathgroup at
  • Subject: [mg52889] Re: defining variables as Real
  • From: David Bailey <dave at>
  • Date: Thu, 16 Dec 2004 03:40:22 -0500 (EST)
  • References: <cpjom6$nf1$>
  • Sender: owner-wri-mathgroup at

symbio wrote:
> Is there anyway in Mathematica to define a variable as say Real or Imaginary 
> or greater than zero, etc.. in the very beginning of all calculations and 
> keep it that way throughout, instead of having to use simplify with 
> assumptions each time?

Remember that you can always define your own version of Simplify that 
applies whatever assumptions you need.

David Bailey

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