>> 99.9% of people couldn't tell you the difference between a derivative and a integral. > I have an engineering degree and I can’t remember the difference Re

>> 99.9% of people couldn't tell you the difference between a derivative and a integral. > I have an engineering degree and I can’t remember the difference Really? I realized I forgot the mechanics of computing the closed-form solutions (like you, I used this type of calculus for maybe four years of my life), but the idea of derivatives being the rate of change stuck with me.