Mathematical Secrets of Seven

Susan McBurney
Bridges Leeuwarden: Mathematics, Music, Art, Architecture, Culture (2008)
Pages 417–420


The number seven is associated with a variety of phenomena, both real and symbolic. However, in the physical world of ornamentation and architecture, it is less widely utilized than other numbers. This paper examines the regular heptagon in some depth and looks at particular characteristics of the number seven itself.