Jugai Roku
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This work was written by Edo period mathematician Imamura Chisho. It was published in 1639 (Kan'ei 16). It is one of the earliest academic publications on Japanese mathematics. Source: About Shogakukan Digital Daijisen Information | Legend |
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江戸時代の数学者、今村知商の著作。寛永16年（1639）刊行。和算の学術的出版物としては最初期のもの。
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