I am currently taking Calculus 1 and we covered Linearization and Differentials. The title of the section in my textbook is called "Linear Approximations and Differentials," in the book by James Stewart. The book and lecture in this section made absolutely no sense to me. Like, I was COMPLETELY lost reading it prior to class, and after lecture I felt even more lost. I'm sure I am making it way more complicated than it needs to be, but typically when I have issues I use PatrickJMT to clarify things. He only has 1 video on Linearization. I was wondering if anyone has additional resources over these topics? Specifically differentials. I followed linearization to a degree, but I think I may have checked out once we hit differentials. Anyways, I am completely lost over these 2 topics. So, any resource would be fantastic. Thanks. Also, when referencing differentials, it separates dy/dx as it's own entity just dy and dx. Is this the same as delta y, delta x?