Multivariate Calculus: chain rules, attempt at explaining general derivative, 9-21-23 part 1

From a channel Lumen includes in full: James Cook, a university maths professor, posts his complete class lectures in calculus, linear algebra, differential equations and complex analysis.

A 60-minute video from James Cook Math's catalogue; the title names its topic.

Video by James Cook Math, played through YouTube's embedded player.