Introduction

"I'm a calculus idiot. I don't know what i'm doing," says wantoko. "Calculus is a black hole in my understanding of mathematics," he adds. Wantoko asks how to explain it without using fancy math words. He explains that when you accelerate or decelerate, something hangs from the rear view mirror like a pendulum. The distance that it swings backwards is a function of how hard the accelerator is pressed,. And if we're doing nothing, this thing seems to level out and hang straight down.