…ral networks involve simple derivatives, the chain rule, partial derivatives, and the gradient. The derivative is **used by neural nets to solve optimization problems, so you should underst**and how the derivative can be used to find the “d**irection of greatest **increase”. A good intuition is probably enough, but if you solve a couple simple optimization problems using the derivative, you’ll be happy you did. 3Blue1Brown also has an Essence of Calculus…