John Cook actually goes into the math of that here: https://www.johndcook.com/blog/2019/11/19/crinkle-crankle-calculus/ https://www.johndcook.com/blog/2019/11/1

John Cook actually goes into the math of that here: https://www.johndcook.com/blog/2019/11/19/crinkle-crankle-calculus/ https://www.johndcook.com/blog/2019/11/19/crinkle-crankle-ca...