Yoshida Mitsuyoshi

Yoshida Mitsuyoshi (吉田 光由, 1598 – January 8, 1672), also known as Yoshida Kōyū, was a Japanese mathematician in the Edo period.[1] His popular and widely disseminated published work made him the most well known writer about mathematics in his lifetime.[2]

In this Japanese name, the surname is Yoshida.
The soroban in Yoshida Kōyū's Jinkōki, 1641 edition

He was a student of Kambei Mori (also known as Mōri Shigeyoshi). Along with Imamura Chishō and Takahara Kisshu, Yoshida became known to his contemporaries as one of "the Three Arithmeticians."[3]

Yoshida was the author of the oldest extant Japanese mathematical text. The 1627 work was named Jinkōki. The work dealt with the subject of soroban arithmetic, including square and cube root operations.[4]

Selected works

In a statistical overview derived from writings by and about Yoshida Mitsuyoshi, OCLC/WorldCat encompasses roughly 20+ works in 30+ publications in 1 language and 40+ library holdings.[5]

See also

Notes
  1. List of Japanese mathematicians -- Clark University, Dept. of Mathematics and Computer Science.
  2. Horiuchi, Annick. (1994). Les Mathematiques Japonaises a L'Epoque d'Edo (1600–1868), pp. 33-34. , p. 33, at Google Books
  3. Smith, David. (1914) A History of Japanese Mathematics, p. 35., p. 35, at Google Books)
  4. Restivo, Sal P. (1992). Mathematics in Society and History. Springer 1992,, p. 56., p. 56, at Google Books ISBN 978-0-7923-1765-4
  5. WorldCat Identities: 吉田光由 1598-1672

References
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