Without functions: by repeatedly writing the code to draw a triangle with. With a Python function call: by generating lots of coordinates and feeding them to your “draw triangle” function.

To illustrate the process of setting up local function calling, let’s walk through an example implementation using a Python function as a tool. Step 1: Define Your Python Function ...

Functions that rely on something outside the function itself (e.g., a network call, or a read from disk) are harder to memoize, though it can still be done.