Inflection and stationary points of function

Inflection points are points where the gradient changes from increasing to decreasing or vice versa. Stationary points are points with 0 gradient.

If you split the model up into sections cut along the inflection points, you can see the increasing and decreasing gradients clearly.

If you split the model up into sections cut along the stationary points, you can see sections of positive and negative gradients.

NOTE: There are 2 stl files to print; the cylinder is in a separate stl file to the sections of the graph.