Error in reading data in SPANISH version
I am not sure why this happens. I wanted to graph the function of two variables f(x,y)=xy³-yx³ (dog chair) and the program converts the data to this form:f(x, y) = x y³ - x y³, thus plotting the plane z = 0. But when I introduce the function by parts: a(x, y) = x³ y and b(x, y)=-(x y³) and then add these, geogebra works good plotting adequately, and writing on the panel VISTA ALGEBRAICA the expected form of the function: a(x, y) + b(x, y)=c(x,y)=xy³-(yx³). Please help me to understand why its happens like this. Thank you Geogebra Team!