Preface

When I was 13 years old, I received my first graphing calculator. It was Christmas, and my biggest present under the tree was a TI-83. I was thrilled. I first used it just for math, but over several months, I became more curious and discovered that I could write programs directly on the calculator. The guidebook included with the calculator didn’t really help with programming, other than demonstrating an interesting Sierpinski Triangle. Undeterred, I set off to teach myself calculator programming, although I never thought of it in such definite terms.