PART 3 | On Saturday morning, I started reading through my calculus textbook while sipping coffee. The first few chapters looked pretty basic, which I guess shouldn’t have surprised me. I flipped back to the table of contents: “Introduction to Calculus; Derivatives & Applications; Integrals; Exponentials and Logarithms; Techniques and Applications of the Integral.” I stopped and went to the section on ‘Applications of the Integral’ to see if I recognized anything. To my surprise, I didn’t. It was like I had never seen of any of it.