I would only recommend this book to someone who wants to seriously learn math. The book's approach is perfect for math majors. It builds mathematical maturity. The exercises are hard and by the time you are done with this book you will be able to understand math books. It will take you to the next level if you study it carefully.
Good introductory book for university calculus. It was a bit hard to follow at first but then it was a great reference source and for exercises. I bought it second-hand in 1993 and it was brand new (seems the previous owner didnt use it much) but after 20 years with me it is almost destroyed, that´s how much I used and re used this text. I still have it just in case I need to check for something and because of its sentimental value (first textbook I bought for university)
I was surprised to find that this book, which I bought when I was at university more than 50 years ago, is listed among "All The Math Books You'll Ever Need" at , so I finally got round to reading it through. It's easy going at first and seems long-winded, with fussy proofs of many results that are intuitively obvious, but towards the end the going gets harder and some of the results are counterintuitive. For example (p. 465), the function f(x)=x^(-3/4) has an integral between 0 and 1 that converges, but the integral of pi.f^2(x) diverges. Geometrically, this means that the ordinate set of f has a finite area, but the solid obtained by rotating this ordinate set about the x-axis has an infinite volume! On p. 453 the mathematician Sergei Bernstein is described as Russian, but nowadays we would surely call him Ukrainian. I feel virtuous for having finished the book at last.
This timeless work is easily my favourite mathematics book of all time. The proofs while certainly rigorous, are lucidly developed without being overly terse, which is especially useful to undergraduate students. I highly recommend this book to anyone considering a serious study of mathematics or a related field.
Apostol's Calculus is the definitive book on the subject for the reader who wants to rigorously understand the subject. I do recommend reading a standard (any other than M. Spivak) calculus book first and perhaps a Real Analysis book in one dimension (like Bartel & Sherbet). A rigorous precalculus book (like College Algebra with Mathematical Structure) is recommended for readers who are not ready for Real Analysis.
This book offers a beautiful foundation - starting in the introduction with some basic axioms of real numbers (not quite starting from Peano's axioms). It is not necessary to get this in depth but for the math major or anyone who wants to study the subject rigorously it is both satisfying and incredible beneficial to see how a system can be built up. I love this book.