Simon BrownLatest 3b1b video on the mathematics of this Escher drawing is really great. Kudos to the author reaching literally millions of people with these topics! https://www.youtube.com/watch?v=ldxFjLJ3rVY
daym@sjb3d Thank you so much for this. I first saw Escher's gallery picture over 50 years ago and have often wondered what would be in the centre, were it to be filled in.
#escher #gallery