Exercises:

The file that will be posted above (not yet!) is a Problem Sheet which contains a list of problems assigned, which will be discussed in the Exercise session; the file will be updated as the course goes on, so come back to download it at regular intervals for new problems.

Skript

A Skript of the lectures will be made available here (sections added periodically). To download the pdfs, you need to log in to your My first (e.g. using the button here above), then you should be able to see the links to the pdf files here below. Registered students have also received a link to a shared folder, which will be updated more frequently.

Some fun related links:

• Tiling billiards animation by Ofir David
• 1BrowBlue1Brown explanation of two masses collision approximation of pi (solution to a Homework exercise!)
• More 3Blue1Brown on two masses elastic collisions, the explanation of the problem and another solution (without billiards) 
• The music of billiard tables, another video by Ofir David (with the idea of unfolding and a hint of solution to a Homework problem)
• Playing in an elliptical billiard table (no math...); some more footage here; 
• A Numberphile video on the illumination problem, with an interview to Howard Masur and a follow up;
• Cutting sequences in the pentagon, a 'Dance my PhD' video on , by Diana Davis; see also the 'The make of': FAQ video for explanations on how it was shot and the mathematics behind.