Until now, we have been learning to make 2-D plots in Python using the matplotlib package. 3-D plotting is similar except for a few additional commands that we will learn in this lesson.

3-D line plots

Consider the $x, y, z$ coordinates of a three-dimensional spiral

$$x(t)=a\space cos(t)$$

$$y(t)=a\space sin(t)$$

$$z$$ ...