MATHEMATIQUES en collège (réforme 2016) - StumbleUpon. Les Nuits de l'incertitude #2 - HYPERBOLIQUE, avec Etienne Ghys et Don Zagier. Vi Hart: Math Doodling. Remember that video about doodling dragons and fractals and stuff? I finally finished part 2! Here is a magnet link so you can dowload it via torrent. Here it is on YouTube: You can tell I worked on it for a long time over many interruptions (travelling and other stuff), because in order to keep myself from hating what was supposed to be a quick easy part 2, I had to amuse myself with snakes. Here was part 1, via Torrent or YouTube. Mathématiques magiques. Inspirations: une belle promenade au coeur des mathématiques.