Los Angeles Math Circle |

## 10/2 -- High School II: Symmetry and Wallpaper Patterns with Dr. Mike HallPerhaps when you were bored in a math class you started looking at the patterns on the wallpaper around you. Many types of wallpaper use a simple repeating pattern, but occasionally you might notice that the wallpaper has a more subtle kind of symmetry. How many essentially different types of symmetry are there? As we will find out, the answer is seventeen. |