A web-based book-in-progress by
Charles Petzold
wherein is explored the utility, history,
and ubiquity of that marvelous invention,
logarithms
including what the hell they are;
with some demonstrations of their
primary historical application in
plane and spherical trigonometry;
plus, that extraordinary tool known as the
slide rule
is fully explored in theory and use.
- This is a work in progress
Chapter titles in green are pretty much finished; no substantial changes are anticipated but small edits, corrections, or cosmetic fixups might be required.
Chapter titles in red are unfinished and currently in a state of flux.
Chapter titles in black are not yet begun.
Nothing has yet been professionally edited. I anticipate that this book will be completed by year-end 2027.
- It is best viewed on a desktop or laptop computer
I've been developing the pages in Edge using Visual Studio Code running under Windows 11 on a Microsoft Surface Pro 9. I've also been testing the pages in Chrome on that machine, and in Safari on a Mac Mini running Sequoia, and in Chrome (version 126, it says) on an Asus Chromebook.
However, my iPad Mini running iOS 12.5.7 has several problems with these webpages, and the pages often become quite awkward on phones.