https://tutorial.math.lamar.edu/ https://tutorial.math.lamar.edu/ is a good place to find answers to things. I learnt calculus from a copy of a book called "Ca

https://tutorial.math.lamar.edu/ https://tutorial.math.lamar.edu/ is a good place to find answers to things. I learnt calculus from a copy of a book called "Calculus, A complete course" which I quite liked but have literally never seen anywhere else. The fact I got the book was basically by accident, completely changed my future.