Privacy

Last updated 28 October 2026

This site is a free course made of static pages. It has no accounts, no forms, no comments and no newsletter, so there is nothing for you to submit.

What the site does not do

• It sets no cookies.
• It runs no analytics, advertising or tracking scripts.
• It loads its fonts and scripts from this site itself, not from third party servers.
• Search runs inside your browser on an index downloaded from this site. What you type is not sent anywhere.

What the hosting provider may record

Like any website, the pages are delivered by a hosting provider, which may keep standard request logs, such as IP address, browser type and the pages requested, to run and protect its service. Those logs are governed by the provider’s own policy. This site adds no logging of its own.

Links to other sites

Lessons link to papers, documentation and articles on other sites. When you follow a link, that site’s own privacy policy applies.

Changes

If this page changes, the date at the top changes with it.