Pocket e-books, taking the first step

With the help of the Internet and the use of pocket e-books, we broke through the walls of the campus and spread and popularize the infinite calculus learning knowledge. This is our dream. In June 25, the first pocket e-book was successfully uploaded. This is a memorable day.

At this moment, as long as you use search engines such as Google and Baidu to enter the keyword "section 1.5 is infinitely small", then, J. Keisler's elementary
The contents of Chapter 1.5 in the electronic version of calculus (titled "infinitely small, finite super real number and infinity") will immediately appear in front of you. Now it is only the original English version of the book,. We suggest you try it yourself to see how it works?

Currently, the upload test is not effective enough, and the relevant images are not automatically loaded. Readers are not visually aware of the test. However, because this is an e-book, it can be modified and maintained at any time (including in other places). It is not a hammer sale. After the upload, no one will take care of it even if it is done.

What file formats can be used to upload data on tablets and smartphones for easy reading? This is the first thing we should consider.

Here, we sincerely hope that the readers will give us valuable suggestions in their comments to help us improve the upload Technology of pocket e-books and achieve better reading results.

Note: our own large official website is under preparation.