Hi.. I have two difficulties. (I use Mathematica v. 5.2 in Windows XP home )
First, I use
to plot the contour levels of z=xy. But, I want to consider ONLY the DOMAIN where x>y and x<1/2 and y<1/2. How may I restrict the domain to see the contour plot but only when is true x>y and x<1/2 and y<1/2 and not more?.
I used Boole but this gives the value 0 .. and I want "empty" and not value zero. How may I do that?
Second, I want to the see the ContourPlot in 3 dimensions of f = x*y*z .. How could I visualize the case where (x>y && y>z).
When I include this condition in ContourPlot3D I cannot see anything. Of course.. it maybe the problem of domain of the levels (1/10, 1/100} that I was to visualize.
I attach a nb file where I was trying to solve the two problems. Any help is very welcomed.
Attachment: QuestionforForumWolfram.nb, URL: ,