10/2/2016 -- High School II: Symmetry and Wallpaper Patterns with Dr. Mike Hall
Perhaps 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.