Part One: Introduction
With the setup complete we're ready to start learning to program! In this first part of the book, which covers several chapters, we have four learning goals:
- to understand a basic model of how code runs, known as the substitution model of evaluation;
- to apply structural recursion over the natural numbers;
- tou understand composition and abstraction using functions; and
- to get comfortable writing, running, and debugging code.
We'll do this by creating computer graphics, part of subfield of computing known as creative coding. In doing so we'll get a little bit of experience as a creative coder, though we won't have the time to explore more than a tiny fraction of the field. If you decide you'd like to continue with creative coding, at the end of this part are some resources to go further.