Re: 3D graphics domain

*To*: mathgroup at smc.vnet.net*Subject*: [mg55768] Re: 3D graphics domain*From*: dh <dh at metrohm.ch>*Date*: Wed, 6 Apr 2005 03:10:58 -0400 (EDT)*References*: <d2tesa$qj2$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Hi Richard, Bobby just told me that I screwed up in my answer. The <= and >= have be replaced by =. How it happend, I can not tell. Sorry. Do make it save and fast, I just include the notebook. [Contact the author to get the notebook attachment - moderator] Daniel Richard Bedient wrote: > Thanks to Bob and Dan for helping me get this far. Again, I've exhausted > my Mathematica knowledge along with anything I can find in the Help > files. I now need to take the function they found for me and graph it > in 3D over a restricted domain. Here's the problem: > > Graph the function > > f(x,y) = -64*x + 320*(x^2) - 512*(x^3) + 256*(x^4) + 20*y - 64*x*y + > 64*(x^2)*y - 4*(y^2) > > over the domain: > > y <= 4*x*(1-x) > y >= 4*x*(1 - 2x) > y >= 4*(x - 1)*(1 - 2x) > > Thanks for any help. > > Dick >