New teaching schedule from week 4

Starting from week 4, the lecture on Tuesdays and the exercise session on Wednesdays will swap time slot. Thus, the lectures will be Monday 10:15-12:00 and Wednesdays 10:15-12:00 (starting 27 January) and the Exercises will be run on Tuesdays 12:15-14:00 (starting 26 January).