A Mathematical History of the Golden Number - Roger Herz-fischler
The first complete, in-depth study of the origins of division in extreme and mean ratio (DEMR)--the Golden Number--this text charts every aspect of this important mathematical concept's historic development from its first appearance in Euclid's ELEMENTS through the 18th century. Of interest not only to mathematicians but also classicists, archaeologists, historians of science, or anyone interested in mathematical ideas.