I'm curious to hear experiences with matplotlib on 10.5 ... The problem was I could only plot one figure and then the GUI would freeze up. I'm not even sure what backend it uses by default.< ...

Functions of two variables can be visualized in many ways: heat maps in 2D, contour curves in 2D, wireframes in 3D, surfaces in 3D. We begin by defining a function of two variables, building an array ...