Hi, this is my first post. Okay, I am in 1st semester of my university (doing B.E. Electrical Engineering). My Maths (I) is all calculus. So what calculus book should I buy?? The university proposes ----> 1. Calculus and Analytic Geometry, 9th edition by Thomas and Finney 2.Essential Calculus by Stewart James The above are as textbooks. The below are referred to as reference books----> 1. Wider David V, Advanced Calculus: Early Trancedentals, Cengage Learning (2007). 2. Apostol Tom M, Calculus, Vol I and II John Wiley (2003).