Functions of Several Variables
There are two main ways to draw a picture of a functions of several variables. We can either draw a 3D picture of the surface z=f(x,y), or we can use contour lines. This video shows how these work.
There are two main ways to draw a picture of a functions of several variables. We can either draw a 3D picture of the surface z=f(x,y), or we can use contour lines. This video shows how these work.
