Kiji Oshima

Japanese: 大島喜侍 - おおしまきじ

?-1733 A calendar calculator in the mid-Edo period.
He first studied Japanese mathematics under Maeda Kenshu, and later Shimada Naomasa. He also excelled in astronomy and surveying. He traveled around Kansai and Shikoku, and trained many disciples. He improved on Seki Takakazu's zero reduction technique, which he named Oshima-ryu. He died on April 13, 1718. He was from Osaka. His nickname was Zenzaemon. His pen name was Shiran. His works include "Enchosho" and "Katsuho".

Source: Kodansha Digital Japanese Name Dictionary +Plus Information | Legend

Japanese:

?－1733　江戸時代中期の暦算家。
はじめ前田憲舒に,のち島田尚政に和算をまなぶ。天文,測量術にもひいでた。関西,四国をめぐり,おおくの弟子をそだてる。関孝和の零約術を改良し,大島流を称した。享保(きょうほう)18年4月13日死去。大坂出身。通称は善左衛門。号は芝蘭。著作に「遠候書」「活法」など。

出典　講談社デジタル版日本人名大辞典+Plusについて　情報 | 凡例

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