Terms of use

Most content on this site is licensed under a Creative Commons Attribution-NonCommercial 4.0 International license. You can share and adapt this content, as long as you give appropriate credit and do not use it for commercial purposes. The only exception are linked materials in PDF files, which comes with their own licences.

This site does not collect and does not store any data of its users. This site is hosted on GitHub Pages and uses locally served fonts from Google Fonts as well as MathJax and jQuery scripts.

Thanks for dropping by and have fun!