In Edo period(1603-1867), there was a famous Mathematician in Japan. His name is Takakazu Seki. He had brushed up Mathematics in Japan, and Mathematics at his time is more sophisticated than that of Europe. I would like to announce his achievement to the world. ↑は、関孝和の功績を述べたものです。江戸期の我が国において、関の功績は驚異的…