Pseudosphere

7.6 Outline

1. Golden rectangles
   1. definition
   2. divine proportion
   3. tau
2. Mathematics and art
   1. golden ratios in art
   2. proportions of the human body
   3. spiral constructed using a golden rectangle
3. Projective geometry
   1. Duccio’s Last Supper
   2. Hogarth’s Perspective Absurdities
   3. false perspective
   4. Masaccio’s The Holy Trinity