Dairoku Kikuchi

1855 – 1917

• Japanese education
• Recent seismological investigations in Japan
• Shin Nihon
• A series for [pi]² obtained by the old Japanese mathematicians
• Ajima's method of finding the length of an arc of a circle
• On the method of the old Japanese school for finding the area of a circle: (Abstract of the paper read sept. 21st., 1895)
• Seki's method of finding the length of an arc of a circle
• The ellipsograph of Hazama Gorobei
• Various series for [pi] abtained by the old Japanese mathematicians