Personal website
of Janek Zeiger

Together with my former classmates Leonard Simon and Moritz Schirrmacher, we wrote a 264-page book about the basics of mathematics in the in the upper school. The book is written in German and divided into two major sections. In the first section, content that we dealt with in the sixth form is explained, derived and proven in greater depth. The second section supplements the first section with areas that are not explicitly discussed in the upper secondary school. They can be far more elementary, but also far more specific.

Our book is intended to give an insight into how we perceive mathematics with our current level of knowledge. For this reason, the formality is not always in line with scientific standards, but is aimed at striking a balance between comprehensibility and accuracy. In this sense, we do not refer to this collection as specialist literature, but rather as accumulated notes.

Mathematics describes the world. Would you like to learn something about math? I have written many articles about math. There is a list of many:

Feel free to read!

Try your hand at my new Tetris in the browser. It was programmed in HTML, CSS and Javascript. The backend runs PHP, which allows you to save your personal highscore. Can you break the general one? The design is based on Java. (This game is not optimized for mobile devices.)

Craft impeccable math equations effortlessly using my $\LaTeX$ equation editor. From basic calculations to intricate symbols, the user-friendly interface empowers you to generate equations tailored to your needs. Witness your creations come to life in real time with dynamic rendering. Plus, dive into the code with the integrated code-editor. Download and seamlessly integrate equations into documents, presentations, and more.

Unlock the power of mathematical exploration!
Download my cutting-edge mathematics calculator and conquer even the most complex problems with confidence. The software combines a robust graphical function plotter with an integrated computer algebra system (CAS), giving you the tools you need to breeze through equations, solve integrals, plot functions, and more. Whether you're a student, professional, or enthusiast :)

Download here