Monday, May 24, 2021

Cargill G. Knott and the abacus

 A Scottish scientist writes about soroban

Cargill Gilbert Knott
Prof. Cargill G. Knott
Cargill Gilston Knott (30 June 1856 – 26 October 1922) was a Scottish physicist and mathematician who was a pioneer in seismological research. From 1883 to 1891 he was  Professor of Physics and Engineering at Tokyo Imperial University and on the conclusion of his stay in Japan in 1891, he was awarded the Order of the Rising Sun by Emperor Meiji. During this period he came into contact with the soroban abacus which he studied in depth and wrote a complete article on its history and methodology in 1885.

Sunday, May 23, 2021

About jccAbacus Blog

Hello World!

This blog is an alter ego of my personal jccAbacus website on traditional and advanced techniques used with the Japanese / Chinese abacus: i.e. the soroban / suanpan.

Newton's method for roots on the soroban

  Sir Isaac Newton A non-traditional technique Square, cube and fifth roots can be solved on the abacus using Newton's method. It is not...