Makoto Kusaka

Japanese: 日下誠 - くさかまこと

[Born] Meiwa 1 (1764), Edo
[Died] June 3, 1839 (Tenpo 10). Edo A Japanese mathematician in the late Edo period. Commonly known as Teiyachiro, his pen name was Keiso, and his pen name was Itose. He became a disciple of Yasujima Naoen, and received the full transmission of the Seki school. Unlike Seki Takakazu, Matsunaga Ryosuke, Yamaji Nushiju, and Yasujima, who were of samurai origin, he was of townsman origin and attained the rank of 5th transmission of the Seki school lineage. He opened a school in Kusaka-kubo, Azabu, and produced an unprecedented number of excellent mathematicians from his school. Wada Yasushi, Uchida Gokan, Hasegawa Hiroshi, Shiraishi Nagatada, Mikayu Yasumoto, Ohara Toshiaki, and Koide Kanemasa were all important mathematicians in the final period of Japanese mathematics.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

[生]明和1(1764).江戸
[没]天保10(1839).6.3. 江戸
江戸時代後期の和算家。通称を貞八郎といい，字は敬祖，号は五瀬。安島直円の門に入り，関流の皆伝を受け，関孝和，松永良弼，山路主住，安島らの武士の身分の出身とは違い，町人出身で関流宗統5伝の位についた。麻布の日下窪に塾を開き，門下から他に例をみないほど多数のすぐれた数学者を輩出した。和田寧，内田五観，長谷川寛，白石長忠，御粥安本，大原利明，小出兼政ら，いずれも和算末期に重きをなした数学者であった。

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