Name Arima Yoriyuki Died December 16, 1783 Grandchildren Arima Yorinao | Role Mathematician Children Arima Yoritaka | |
Parents Arima Norifusa, Kyogoku-no-miya Yakahito-shinno Grandparents Kyogoku-no-miya Ayahito-shinno Great-grandparents Empress Dowager Keiho, Saku-no-miya, Hachijo-no-miya Naohito-shinno | ||
Arima Yoriyuki (有馬 頼徸, December 31, 1714 – December 16, 1783) was a Japanese mathematician of the Edo period. He was the lord of Kurume Domain and approximated the value of and its square, . In 1766, he found the following rational approximation of pi, correct to 29 digits:
References
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