How to fucntions like plot f(x,y) = 2 when 0<=x<=1 and 0<=y<=x

I'm struggling to do so. Any help will be appriciated.

[Adam]

f(x,y) = 2 is just a single point result isn't it? Irrespective of x and y the answer is 2

Answer 1

[Christopher Creutzig]

If the region to plot over were a simple 0 ≤ x ≤ 1 and 0 ≤ y ≤ 1, you could use fimplicit(f(x,y) - 2, [0 1 0 1]). I don't think there is a good way of restricting the plotting domain to the triangle you are looking for, though. You could just cover the upper triangle with a fill([0 1 1], [1 0 1], [1 1 1]) call, I guess …

[WR102ka]

I guess this is as close as we can get. Thank you