Hey guys. Seeing that the Calculus textbooks of Apostol and Spivak have been mentioned and recommended numerous times in this forum, I was wondering which one is better? Currently, I am senior taking calculus. I feel that my calculus class is too easy and will not help me in college where I would like to major in either math or physics. Recently, I have been doing many precalculus exercises/problems given that my previous math classes were also quite elementary. Anyhow, which textbook is better?