Presents excerpts from the travel diary of a Japanese mathematician, Yamaguchi Kanzan, who journeyed on foot throughout Japan to collect temple geometry problems. This book explains the sacred and devotional aspects of sangaku, and reveals how Japanese folk mathematicians discovered many theorems independently of mathematicians in the West. Publisher: Princeton University Press Author(s): Tony Rothman Illustration(s): 16 color illus. 150 line illus. Number of pages: 392 Publication date: 2008 Dimensions: 262 x 211 x 25 Cover type: Hardback