You'd have to come to your own conclusions on the differences though, analyzing math books can take a while. :) The form is quite different.
(I searched "project gutenberg calculus" with no quotes and that was hit #1. The second result appears to come from 1865, so maybe I should have spent just a bit longer with that page.)
http://www.archive.org/details/differentialinte00osborich
You'd have to come to your own conclusions on the differences though, analyzing math books can take a while. :) The form is quite different.
(I searched "project gutenberg calculus" with no quotes and that was hit #1. The second result appears to come from 1865, so maybe I should have spent just a bit longer with that page.)