Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not for beginners!

I am an undergraduate electrical engineering student. I have 2 years of math (basic calc through ODE) and got an A in general physics. I wanted a book that would introduce the Lagrangian and Hamiltonian techniques and prepare me for more advanced physics, and this is not that book. As another reader pointed out the implied summation notation is confusing and gets in the way. The author also defines most concepts using generalized coordinates (instead of say... cartesian coordinates), which is cool if you are applying the concepts to complicated systems and need generalized coordinates, but I think it confuses the actual physics that are going on, at least for the beginner. Perhaps this is a great reference, but I do not see how you could learn the topic of classical mechanics from this book unless you are already very good at math, physics and mechanics to begin with.