, also known as Honda Teiken,Smith, David Eugene et al. (1914). was a Japanese mathematician in the Edo period.Fukagawa, Hidetoshi et al. (2008). Sacred Mathematics: Japanese Temple Geometry, p. 24. He is the author of Seiyō sampō (Essence of Mathematics) which was published in 1781.Nussbaum, Louis-Frédéric. (2005). "Fujita Sadasuke" in .
Sadasuke was the father of Fujita Kagen (1765–1821),Mikami, Yushio. (1913). ; n.b., Abhandlungen zur Geschichte der mathematischen Wissenschaften mit Einschluss ihrer Anwendungen (Essays on the history of mathematical sciences including their applications) who is credited with publishing the first collection of sangaku problems.
Selected works In a statistical overview derived from writings by and about Fujita Sadasuke, OCLC/WorldCat encompasses roughly 30 works in 30+ publications in 1 language and 30+ library holdings WorldCat Identities : 藤田定資 1734-1807
, 1769 , 1781 , 1796 , 1807
See also Sangaku, the custom of presenting mathematical problems, carved in wood tablets, to the public in Shinto shrines Soroban, a Japanese abacus Japanese mathematics
Notes
References Fukagawa, Hidetoshi and Tony Rothman. (2008). Sacred Mathematics: Japanese Temple Geometry. Princeton: Princeton University Press. ; OCLC 181142099 Nussbaum, Louis-Frédéric and Käthe Roth. (2005). Japan encyclopedia. Cambridge: Harvard University Press. ; OCLC 58053128 David Eugene Smith and Yoshio Mikami. (1914). A History of Japanese Mathematics. Chicago: Open Court Publishing. OCLC 1515528 -- note alternate online, full-text copy at archive.org