Choi Seok-jeong

In this Korean name, the family name is Choi.

Choi Seok-jeong (Korean: 최석정; Hanja: 崔錫鼎; 1646–1715) was a Korean politician and mathematician in the Joseon period of Korea.

Choi Seok-jeong 최석정
Chief State Councillor
In office 5 May 1705 – 24 April 1710
Preceded by	Sin Wan
Succeeded by	Yi Yeo
In office 27 March 1703 – 29 July 1703
Preceded by	Seo Mun-jung
Succeeded by	Sin Wan
In office 24 July 1701 – 31 October 1701
Preceded by	Seo Mun-jung
Succeeded by	Seo Mun-jung
Left State Councillor
In office 12 April 1699 – 16 July 1699
Preceded by	Yi Se-baek
Succeeded by	Seo Mun-jung
Right State Councillor
In office 3 April 1697 – 13 July 1698
Preceded by	Seo Mun-jung
Succeeded by	Yi Se-baek
Personal details
Born	(1646-07-02)2 July 1646
Died	6 December 1715(1715-12-06) (aged 69)
Spouse	Lady Yi Gyeong-eok of the Yi clan
Children	Choe Chang-dae (son)
Parents	Choe Hu-ryang (biological) Choe Hu-sang (adoptive) (father) Lady An Jung-im of the Gwangju An clan (biological) (mother)

Choi Seok-jeong
Hangul	최석정
Hanja	崔錫鼎
Revised Romanization	Choe Seokjeong
McCune–Reischauer	Ch'oe Sŏkchŏng
Art name
Hangul	존와, 명곡
Hanja	存窩, 明谷
Revised Romanization	Jonwa, Myeonggok
McCune–Reischauer	Chonwa, Myŏnggok
Childhood name
Hangul	석만
Hanja	錫萬
Revised Romanization	Seokman
McCune–Reischauer	Sŏngman
Courtesy name
Hangul	여시, 여화
Hanja	汝時, 汝和
Revised Romanization	Yeosi, Yeohwa
McCune–Reischauer	Yŏsi, Yŏhwa
Posthumous name
Hangul	문정
Hanja	文貞
Revised Romanization	Munjeong
McCune–Reischauer	Munjŏng

He published the Gusuryak (Korean: 구수략; Hanja: 九數略) in 1700,^[1] the first known literature on Latin squares,^[2] predating Leonhard Euler by at least 67 years.^[3][4] He also invented the hexagonal tortoise problem.^[5] Choi was a member of the Jeonju Choe clan.

Choi Seok-jeong Award

The Choi Seok-jeong Award was created in 2021 to recognize those who develop or spread mathematics.^[6] Spelling of laureates' names matches their Wikipedia page, if it exists, the remainder used Revised Romanization of Korean with the Korean Romanization Converter of Al Lab and Narainfotech.

Year	Laureates	Affiliation
2021[7]	Kim Jae Kyoung Im Seonhui Song Hongyeop	KAIST/Institute for Basic Science Seoul National University Yonsei University
2022[8]	Kang Myeongju Oum Sang-il Hwang Hyeongju	Seoul National University KAIST/Institute for Basic Science POSTECH
2023	Kim Jongam Ye Jongcheol Kim Sanghyeon	Seoul National University KAIST Korea Institute for Advanced Study

References

1. "구수략(九數略)". 규장각 문화재청. Seoul National University Kyujanggak Institute for Korean Studies. Retrieved 11 April 2017.
2. Colbourn, Charles J.; Dinitz, Jeffrey H. (2 November 2006). Handbook of Combinatorial Designs, Second Edition. CRC Press. p. 12. ISBN 9781420010541. Retrieved 28 March 2017.
3. Ree, Sangwook (August 15, 2014). "Confucian scholar's discovery predates the work of Euler" (PDF). Math&Presso. Vol. 3. International Congress of Mathematicians.
4. Kim, Sung Sook (2012). Orthogonal Latin Squares of Choi Seok-Jeong (PDF). History and Pedagogy of Mathematics. Archived from the original (PDF) on 5 April 2017. Retrieved 28 March 2017.
5. Proceedings of the Genetic and Evolutionary Computation Conference. Morgan Kaufmann Publishers. 2002. p. 689. ISBN 9781558608788. Retrieved 28 March 2017.
6. "CI Jae Kyoung Kim won '올해의 최석정상.' Congratulation!". Biomedical Mathematics Group. Institute for Basic Science. Retrieved 29 September 2022. '올해의 최석정상' (Choi Seok-jeong award in this year) is named after Choi, Seok-jeong who was a Korean politician and mathematician in the Joseon period of Korea. This award was established 2021 to give mathematicians credit for developing and applying mathematics or spreading mathematics culture.
7. "김재경 교수, 올해의 최석정상 수상". Mathematical Sciences (in Korean). KAIST. 30 November 2021. Retrieved 15 December 2022.
8. 유용하 (13 December 2022). "올해의 최석정상 수상자 서울대 강명주·카이스트 엄상일·포스텍 황형주 교수" (in Korean). Seoul Shinmun. Retrieved 15 December 2022.

Gusuryak by Choi Seok-jeong, published in 1700