Keisler H.J. Elementary Calculus: An Infinitesimal Approach

Prindle Weber & Schmidt, 1985. - 913 pages.This book is concerned with the infinitesimal approach originally set forth by Newton and Leibnitz. The author has moved the theoretical material from Chapter One to an Appendix in this edition. A new chapter on differential equations has been added and the transcendental functions have been fully integrated into the first section. This book should be of interest to first and second year undergraduate mathematics students.