The book Sacred Mathematics: Japanese Temple Geometry by Fukagawa Hidetoshi and Tony Rothman is the primary source of stories and questions we are going to discuss.
The notes (hand-written notes in Russian) will appear here:
Resources:
- 1. Edo Period images of samurai, in The Metropolitan Museum of Art (online collection).
- 2a. Chinese fairy tale The weaver (in 40 slides, 1961, in Russian) - and the same in pdf
- 2b. Chinese remainder theorem Sun's dial by Elliot Kienzle
- 3a. Mathematics in medieval China by V.E. Eremeev (also explains how to use abacus = counting frame and counting rods)
- 3b. More on using counting rods on Wikipedia
- 4a. Pythagorean triples on 3blue1brown
- 4b. Pythagorean Theorem with many proofs on cut-the-knot
Hiroshi Kotera collected several hundreds of images of sangaku tables - out of about 820 that survived (click on hieroglyphs to see the pictures!). The English version of the page contains the map of prefectures in Japan.
Geometry Textbook:
- Geometry textbook by O. V. Pogorelov: in Ukrainian and in Russian.