Real Tornado

Akio Hizume and Yoshikazu Yamagishi
Proceedings of Bridges 2009: Mathematics, Music, Art, Architecture, Culture (2009)
Pages 239–242 Regular Papers


The continued fraction expansion of a real number R > 0 generates a family of spiral triangular patterns, called “tornadoes.” Each tornado consists of similar triangles, any two of which are non-congruent.