Seki-ryu Wasan and Yuzo Omata
Edo period Seki style Wasan
Japan's unique mathematics developed in the Edo period Wasan It's called. Already in Japan Asuka Mathematics was introduced from China around the time, but it did not become popular. After that, from the Sengoku period to the early Edo period, castle construction・Civil engineering construction・Land inspection・As the need for calculation increases due to economic development, China calculation book based on the influence of Wasan will develop. This mathematician who can be called the founder of Wasan, which developed during the Edo period, Takakazu Seki is. Wasan, invented by Takakazu Seki, became popular in the early Edo period. Kanryu Wasan It was called.
Instructor of the Seki School of Wasan, Yuzo Omata
In the Inagi region, as a leader of Seki-ryu Wasan during the Meiji period, Yuzo Omata is famous. Yuzo Omata is Tenpo Born on October 4, 1840 in Yanoguchi Village. I have been learning arithmetic since I was young, Self-study Sensing the limits of this, he moved to Tokyo in 1877. Traveling to school death, Riken Fukuda ( Juntendo Gugosha He learned the Seki school of Wasan from the Wasan School (He ran a Wasan school called ``Wasan School''). Around the time of this trip to Tokyo, he began teaching Wasan in Yanoguchi Village, and it is said that he had many disciples from all walks of life. Also by the disciples Anazawa Tenjin Shrine (Yanoguchi, Inagi City), Okunitama Shrine (Fuchu City) calculation amount will be dedicated. In 1855, `` mathematical illustrations ” Yuzo Omata's accomplishments can be seen in the shrine erected on the grounds of Anazawa Tenjin Shrine by his disciples in July 1897. Omata Kimiju Monument ” memorial monument You can know by.
Omata Kimiju Monument (Anazawaten Shrine)
Yuzo Omata in his later years
The first question of the calculation tablet of Anazawa Tenjin Shrine
Wasan professor/student recruitment leaflet
Sangaku dedicated to Okunitama Shrine