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, also known as Yoshida Kōyū, was a Japanese mathematician in the Edo period.〔( List of Japanese mathematicians ) -- Clark University, ( Dept. of Mathematics and Computer Science ).〕 His popular and widely disseminated published work made him the most well known writer about mathematics in his lifetime.〔Horiuchi, Annick. (1994). 〕 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."〔Smith, David. (1914) )〕 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.〔Restivo, Sal P. (1992). 〕 ==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.〔( WorldCat Identities ): ( 吉田光由 1598-1672 )〕 * 1643 — , ( OCLC 22023455088 ) * 1659 — , ( OCLC 22057549632 ) * 1818 — , ( OCLC 22057124215 ) * 1850 — , ( OCLC 22055982082 ) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Yoshida Mitsuyoshi」の詳細全文を読む スポンサード リンク
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