A Brief Introduction to the Infinitesimal Calculus
by Irving Fisher
Publisher: Macmillan 1921
Number of pages: 110
Although intended primarily for economic students, the book is equally adapted to the use of those who wish a short course in 'The Calculus' as a matter of general education. I have had in mind not so much the classroom as the study.
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by Robert Ghrist - University of Pennsylvania
This text is meant to be read and enjoyed. It assumes you've seen some Calculus before: you know what to do (differentiate / integrate) and how to do it, but you don't know what it really means -- like everything else in life ...
by Dan Sloughter
Introduction to calculus based on the hyperreal number system for readers who are already familiar with calculus basics. It covers hyperreals, continuous functions, derivatives, geometric interpretation, optimization, integrals, applications, etc.
by Marcel B. Finan - Arkansas Tech University
This short supplement consists of the author's lectures of a freshmen-level mathematics class offered at Arkansas Tech University. These lecture notes are basically well suited for a one semester course in Business Calculus.
by John William Mercer - Cambridge University Press
The author has been guided by the conviction that it is much more important for the beginner to understand clearly what the processes of the Calculus mean, and what it can do for him, than to acquire facility in performing its operations.