Shigeru's Scratchy Shelf
Our logo, Pentagonal Star, emblems a Pythagorean harmony.
Teaching (elementary.pdf added on 2022/12/21)
[mostly in Japanese]
Seminar (refreshed on 2018/4/2)
Research (clifford.pdf updated on 2018/4/2)
Copyright 2010--2022 YAMAGAMI Shigeru
Last modified: 2022/12/21