Daily Archives: 2017/04/18

Prime numbers are the dwellings of the mystics

In Cayley transform for Easter we used the Cayley transform to create a pattern on the Poincaré disk: Which reminded me of the Ulam spiral The Ulam spiral or prime spiral (in other languages also called the Ulam cloth) is … Continue reading

Posted in Geometry, Hyperbolic geometry, SU(1,1) | 1 Comment