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/

**References**:**3d plot's of function's domain***From:*"A D'Ignazio" <est1900@hotmail.com>