Syntax for multivariable functions
When I enter b(x, y) = x² + y² into the input line I see a paraboloid around the z-axis, and it is classified as a Multivariable Function. However, I get identical graphs when I enter
c(x, z) = x² + z² and d(y, z) = y² + z².
I expected to get paraboloids around each of the axes but that is not the case. Why is this?