Add a calculus/real analysis online text

[gilmoskowitz]

What does this PR do?

Add Resource

For resources

Description

A calculus and real analysis textbook that takes an historical perspective to teaching the subject.

Why is this valuable (or not)

The text takes a different approach than most to teaching real analysis. As the authors say in Chapter 1:

We do this by immersing the student in the story of how what is usually called Calculus evolved into modern Real Analysis. Our hope and intention is that this will help the student to appreciate why their intuitive understanding of topics encountered in calculus needs to be replaced by the formalism of Real Analysis.

How do we know it's really free?

The book is published on the authors' websites. The PDF version explicitly links to a Creative Commons license: Attribution-NonCommercial-ShareAlike CC BY-NC-SA

For book lists, is it a book?

Yes

Checklist:

• [x] Not a duplicate
• [x] Included author(s) if appropriate
• [x] Lists are in alphabetical order
• [x] Needed indications added (PDF, access notes, under construction)

[eshellman]

Super addition! Do you think https://textbooks.opensuny.org/how-we-got-from-there-to-here-a-story-of-real-analysis/ might be a better url for it, since that has links to both pdf and html?