Is there a way to specify the domain for a function in wolfram alpha? I have a function that I want to build. I want to restrict the function f (x, y) = xy (3-xy) to x> = 0, y> = 3 and y <= 3-x
Your limitations do not make sense. For x> = 0, it follows that y <= 3-x is equal to y <= 3, but you also have y> = 3, so this means that you want to plot for y = 3. So, what you want construct, obviously, f (x) = -3x ^ 2.
Other than that, I don’t think that WA currently allows a RegionFunction function, as in Mathematica
Wolfram Alpha. , , , y 3. , @Sjoerd, .
, Wolfram Alpha : f(x,y) = xy(3-x-y) for x>=0, y=3..3-x
f(x,y) = xy(3-x-y) for x>=0, y=3..3-x
, : plot y^2 cos(x), x=-6..6, y=-2..2 plot f(x) = -8/x + sqrt(7/x^2+1/x+1) for x=1..50
plot y^2 cos(x), x=-6..6, y=-2..2 plot f(x) = -8/x + sqrt(7/x^2+1/x+1) for x=1..50
: Wolfram Alpha Blog