Infinitesimal Analysis V1 Elementary Real Variables is a book written by William Benjamin Smith and first published in 1898. The book is a comprehensive introduction to the theory of infinitesimal analysis, with a focus on real variables. The text is divided into two parts, with the first part covering the basic concepts of calculus, such as limits, derivatives, and integrals. The second part of the book delves deeper into the theory of functions, including topics such as continuity, uniform convergence, and power series. Smith's writing style is clear and concise, making the book accessible to both beginners and advanced students of mathematics. The book is also notable for its historical significance, as it played a significant role in the development of the modern theory of calculus. Overall, Infinitesimal Analysis V1 Elementary Real Variables is a classic text that is still relevant today for anyone interested in the foundations of calculus and real analysis.This scarce antiquarian