Keep a receipt. After 600 meters, turn left in roundabout. Take the right lane up the hill on Eklandagatan. Matematiskt Centrum is a yellow brick building with a large metal sculpture in front at the end of Eklandagatan, on your lefthand side. Map of Chalmers .
Nights can be quite cold.
Here are some lunch places in the neighbourhood of Matematiskt Centrum. A lunch plate costs about SEK 45-55.