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MathGroup Archive 2005

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Re: 3d plot's of function's domain

  • To: mathgroup at smc.vnet.net
  • Subject: [mg63158] Re: [mg63109] 3d plot's of function's domain
  • From: "Carl K. Woll" <carlw at wolfram.com>
  • Date: Fri, 16 Dec 2005 07:22:11 -0500 (EST)
  • References: <200512150806.DAA19401@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

A D'Ignazio wrote:
> Dear MathGroup,
> 
> I would be very grateful if you could help me on this:
> 
> I got a function of three variables f(x,y,z). I want to get a 3d plot of the
> region A in R^3 such that for any vector of values (x,y,z) in A the function
> f is positive. I'm only able to solve this problem in a basic way: I fix one
> of the three variables -let's say z=Z -and then I get the 3d plot of the
> function f(x,y| z=Z), get the contour plot and define the region of
> interest. I can do it for several values of Z, but i think it is not very
> elegant.
> 
> There is a way to obtain directly the 3d plot of the variables space such 
> that the condition of f(.) being positive is satisfied?
> 

Take a look at the package Graphics`InequalityGraphics` and in 
particular the function InequalityPlot3D.

Carl Woll
Wolfram Research

> Many thanks
> 
> A D
> 
> _________________________________________________________________
> Scarica gratuitamente MSN Toolbar! http://toolbar.msn.it/



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