Arima Yoriyuki
Japanese mathematician and daimyo of the middle Edo period; 7th Lord of Kurume
About Arima Yoriyuki
Lived 1714 – 1783 (aged 68). Arima Yoriyuki was a Japanese mathematician.
was a Japanese mathematician of the Edo period. He was the lord of Kurume Domain.
He approximated the value of and its square. In 1766, he found the following rational approximation of , correct to 29 digits:
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
Related people
Same field, nearest in time
Contemporaries
People whose lives overlapped Arima Yoriyuki's
Frequently asked questions
Who was Arima Yoriyuki?
Japanese mathematician and daimyo of the middle Edo period; 7th Lord of Kurume
When was Arima Yoriyuki born?
Arima Yoriyuki was born on 31 December 1714.
When did Arima Yoriyuki die?
Arima Yoriyuki died on 16 December 1783.
What was Arima Yoriyuki's occupation?
Arima Yoriyuki was a mathematician.
What nationality was Arima Yoriyuki?
Arima Yoriyuki was Japanese.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Arima Yoriyuki. https://biography.guide/arima-yoriyuki/
MLA: "Arima Yoriyuki." Biography.guide, https://biography.guide/arima-yoriyuki/.
Chicago: "Arima Yoriyuki." Biography.guide. https://biography.guide/arima-yoriyuki/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
Page generated 2026-09-27 05:26 UTC