The following brief vocabulary will be convenient for reference in considering some of the Japanese titles:
hō, method or theory. Synonym of jutsu. It is found in, expressions like shōta hō (method of differences).
hyō, table.
jutsu, method or theory. Synonym of hō. It is found in words like kaku jutsu (polygonal theory) and tatsujutsu (method of expanding a root of a literal equation).
ki, a treatise.
roku, a teeatise. Synonym of ki.
sampō, mathematical treatise, or mathematical rules.
sangi, rods used in computing, and as numerical coefficients in equations
soroban, the Japanese abacus.
tengen, celestial element. The Japanese name for the Chinese algebra.
tenzan, the algebra of the Seki school.
wasan, the native Japanese mathematics as distinguished from the yōsan, the European mathematics.
yenri, circle principle. A term applied to the native calculus of Japan.
In Japanese proper names the surname is placed first in accordance with the native custom, excepting in the cases of persons now living and who follow the European custom of placing the surname last.
