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MathGroup Archive 1995

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Re: Solving inequation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg2091] Re: Solving inequation
  • From: danl (Daniel Lichtblau)
  • Date: Fri, 29 Sep 1995 01:14:21 -0400
  • Organization: Wolfram Research, Inc.

In article <DFCG6A.Lz6 at wri.com> uthaisom at veena.cps.msu.edu (Patchrawat  
Uthaisombut) writes:
> Hi,
> 
> I am a new Mathematica user.
> I wonder if Mathematica can solve inequation.
> Something like
> 
> 	Solve[ k+s < s+1, k]
> 
> If there is no such build-in function,
> suggestion to implement this is also appreciated.
> 
> Thanks.
> 
> Patchrawat Uthaisombut
> 
> 


  There is to my knowledge no package that does this at present. We will  
discuss the possibility of implementing such, but I do not suspect it will  
be a priority item at this time (but we may do it anyway for that subset  
of problems we decide is sufficiently simple).
  If you want to implement something to do this, try solving the equation  
first, and converting the rules that result into equations. If the result  
contains no parameters or is linear in the solve variable, then simple  
substitution of values will show whether to convert the equations to  
greater-than or less-than inequalities.

  Daniel Lichtblau, WRI




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