Choi Seok-jeong
Choi Seok-jeong (Korean: 최석정; Hanja: 崔錫鼎; 1646–1715) was a Korean politician and mathematician in the Joseon period of Korea. 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 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 | 2 July 1646 |
| Died | 6 December 1715 (aged 69) |
| Spouse(s) | Lady Yi Gyeong-eok of the Yi clan |
| Children | Choe Chang-dae (son) |
| Parents |
|
| Choi Seok-jeong | |
| Hangul | |
|---|---|
| Hanja | |
| Revised Romanization | Ch'oe Seok-jeong |
| McCune–Reischauer | Choi Sŏk-ch'ŏng |
| Pen name | |
| Hangul | |
| Hanja | |
| Revised Romanization | Jonwa, Myeonggok |
| McCune–Reischauer | Ch'onwa, Myŏngkok |
| Childhood name | |
| Hangul | |
| Hanja | |
| Revised Romanization | Seokman |
| McCune–Reischauer | Sŏkman |
| Courtesy name | |
| Hangul | |
| Hanja | |
| Revised Romanization | Yeosi, Yeohwa |
| McCune–Reischauer | Yŏsi, Yŏhwa |
| Posthumous name | |
| Hangul | |
| Hanja | |
| Revised Romanization | Munjeong |
| McCune–Reischauer | Munch'ŏng |
References
- "구수략(九數略)". 규장각 문화재청. Seoul National University Kyujanggak Institute for Korean Studies. Retrieved 11 April 2017.
- 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.
- Ree, Sangwook (August 15, 2014). "Confucian scholar's discovery predates the work of Euler" (PDF). Math&Presso. Vol. 3. International Congress of Mathematicians.
- 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.
- Proceedings of the Genetic and Evolutionary Computation Conference. Morgan Kaufmann Publishers. 2002. p. 689. ISBN 9781558608788. Retrieved 28 March 2017.
Gusuryak by Choi Seok-jeong, published in 1700
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