About: Ajima Naonobu

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Ajima Naonobu (安島直円, 1732 – May 20, 1798), also known as Ajima Manzō Chokuyen, was a Japanese mathematician of the Edo period. His Dharma name was (祖眞院智算量空居士).

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rdfs:label	Ajima Naonobu (en) Naonobu Ajima (ca) Ajima Naonobu (de) Ajima Naonobu (es) Ajima Naonobu (eu) Ajima Naonobu (fr) 安島直円 (ja) 安岛直圆 (zh)
rdfs:comment	Naonobu Ajima (安島直円 , Ajima Naonobu?), també conegut com a Chokuyen o Chokuen Ajima, fou un matemàtic japonès del període Edo. (ca) Ajima Naonobu (安島直円, 1732 – May 20, 1798), also known as Ajima Manzō Chokuyen, was a Japanese mathematician of the Edo period. His Dharma name was (祖眞院智算量空居士). (en) Ajima Naonobu (japonieraz: 安島直円, Tokio, Japonia, 1732 - , Japonia, 1798), Ajima Chokuyen gisa ere ezaguna, japoniar matematikaria izan zen. (eu) Ajima Naonobu (安島直円 Ajima Naonobu? 1732 – 14 de noviembre de 1798) fue un matemático japonés del período Edo y exponente del wasan. (es) 安島直円（あじまなおのぶ、享保17年（1732年） - 寛政10年4月5日（1798年5月20日））は江戸時代中期の財政家・和算家。新庄藩士。本姓は藤原氏。家系は藤原秀郷流の安島氏。仮名は万蔵。字は伯規、号は南山。諱は直円。名は資料によっては安島万蔵とも載せ、新庄藩の資料では安嶋直円ともある。父は新庄藩御勘定頭・安島庄右衛門清英。兄弟に安島弥惣次清茂、伊東平蔵直休がいる。妻は於なを。家禄は80石。寛政10年（1798年）江戸藩邸にて没。江戸（現在の東京都港区三田）の曹洞宗常林寺に葬られた他、国元の菩提寺である出羽国最上郡新庄町（山形県新庄市）はに分骨された。戒名は祖眞院智算量空居士。位階は贈従五位。和算に長け、同門の藤田定資をして「当代の名人」と言わしめ、江戸時代の数学の発展に寄与、後世の人は関孝和と並んで和算の二大焦点と評した。 (ja) 安岛直圆（1732年－1798年5月20日），日本江户时代的数学家。数学学派“关流”的第四代带头人。他的贡献包括有关对数的研究和对《线上累圆术》的归纳法的改进。 (zh) Ajima Naonobu (jap. 安島直円; * 1732 in Shiba, Edo (heute Minato, Tokio); † 14. November 1798 in Edo), auch Ajima Chokuen (die sino-japanische Lesung seines Namens) oder Ajima Chokuyen (veraltet für Chokuen), war ein japanischer Mathematiker des Wasan. Sein Vater war der Vorsitzende des Schatzamtes (御勘定頭, o-kanjō-gashira) des Lehens . Er wurde relativ spät Schüler des Mathematikers und Astronomen in Edo (Tokio) aus der Schule von Seki Takakazu. Der Mondkrater Naonobu ist nach ihm benannt. (de) Ajima Naonobu, connu également sous le nom de Ajima Chokuyen (en japonais : 安島直円), né en 1732 et mort le 14 novembre 1798, est un mathématicien et astronome japonais de l'époque d'Edo. Il développa, à partir de l'algèbre et de la géométrie, le calcul infinitésimal. Ajima Naonobu était également un astronome à l'Observatoire de Shogun (Bakufu Temmongaki). Il étudia les éclipses ainsi que le calcul calendaire (Cycle solaire calendaire). (fr)
foaf:name	Ajima Naonobu (en)
name	Ajima Naonobu (en)
death date	1798-05-20 (xsd:date)
dcterms:subject	18th-century Japanese mathematicians Japanese Buddhists Japanese writers of the Edo period 1732 births 1798 deaths
Wikipage page ID	841517 (xsd:integer)
Wikipage revision ID	1062927611 (xsd:integer)
Link from a Wikipage to another Wikipage	Calculus David Eugene Smith Moon Malfatti circles Mathematician 18th-century Japanese mathematicians Japanese Buddhists Japanese writers of the Edo period Helaine Selin Japanese mathematics Abacus Dictionary of Scientific Biography Edo period International Astronomical Union List of Star Wars species (F–J) Triangle center 1732 births 1798 deaths Langrenus (crater) Yoshio Mikami Dharma name Mare Fecunditatis Springer Science+Business Media Impact crater Naonobu (crater) OCLC WorldCat Soroban Gian Francesco Malfatti Sangaku Shinto shrines Kluwer
Link from a Wikipage to an external page	http://www.worldcat.org/search%3Fq=no:%22017232052%22 http://www.worldcat.org/search%3Fq=no:%22057185881%22 http://www.worldcat.org/title/dai-nihon-sugakushi-history-of-mathematics-in-japan-by-endo-toshisada/oclc/122770600&referer=brief_results http://www.worldcat.org/title/encyclopaedia-of-the-history-of-science-technology-and-medicine-in-non-western-cultures/oclc/186451909 http://www.worldcat.org/title/history-of-japanese-mathematics/oclc/1515528 http://www.worldcat.org/title/mathematics-in-society-and-history-sociological-inquiries/oclc/25709270 https://archive.org/details/historyofjapanes00smitiala https://books.google.com/books%3Fid=J1YNAAAAYAAJ&dq=Shiraishi+Chochu&source=gbs_navlinks_s https://books.google.com/books%3Fid=gvMm0jv-xPIC&dq=Yoshida+Koyu+arithmetic&source=gbs_navlinks_s

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