• Title/Summary/Keyword: 최석정

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오일러를 앞선 최석정의 오일러방진

  • Song, Hong-Yeop
    • Information and Communications Magazine
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    • v.30 no.10
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    • pp.101-108
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    • 2013
  • 본고에서는 2013년 대한민국 과학기술 명예의 전당에 조선시대 수학자 최석정(崔錫鼎 1646~1715) 선현이 헌정된 것을 기념하여 그의 저서 구수략(九數略)에 기록된 '직교라틴방진'이 조합수학(Combinatorial Mathematics)의 효시로 일컫는 오일러(Leonhard Euler, 1707~1783)의 '직교라틴방진' 보다 최소 61년 앞섰다는 사실이 국제적으로 인정받게 된 경위를 소개하고 최석정의 9차 직교라틴방진의 특성을 살펴본다.

Orthogonal Latin squares of Choi Seok-Jeong (최석정의 직교라틴방진)

  • Kim, Sung-Sook;Khang, Mee-Kyung
    • Journal for History of Mathematics
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    • v.23 no.3
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    • pp.21-31
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    • 2010
  • A latin square of order n is an $n{\times}n$ array with entries from a set of n numbers arrange in such a way that each number occurs exactly once in each row and exactly once in each column. Two latin squares of the same order are orthogonal latin square if the two latin squares are superimposed, then the $n^2$ cells contain each pair consisting of a number from the first square and a number from the second. In Europe, Orthogonal Latin squares are the mathematical concepts attributed to Euler. However, an Euler square of order nine was already in existence prior to Euler in Korea. It appeared in the monograph Koo-Soo-Ryak written by Choi Seok-Jeong(1646-1715). He construct a magic square by using two orthogonal latin squares for the first time in the world. In this paper, we explain Choi' s orthogonal latin squares and the history of the Orthogonal Latin squares.

on perspective of Philosophy of Mathematics (수학철학적 관점에서 본 <구수략>)

  • Jung, Hae-Nam
    • Journal for History of Mathematics
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    • v.22 no.4
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    • pp.67-82
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    • 2009
  • We study Choi Suk Jung's on perspective of philosophy of mathematics. He explains Chosun mathematics as systems of Changes through and redefines on So Kang Gul's Sasang theory. This is the unique view on Chosun mathematics. we conjecture that Choi Suk Jung tries to establish the mathematical principle on So Kang Gul's Sasang theory.

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A study about Myeonggok(明谷) Choiseokjeong(崔錫鼎)'s persuasive style(論說類) proses (명곡(明谷) 최석정(崔錫鼎)의 논설류 산문 연구)

  • Kwon, Jin-ok
    • (The)Study of the Eastern Classic
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    • no.70
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    • pp.91-117
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    • 2018
  • This paper examines the persuasive style(論說類) proses of Myeonggog(明谷) Choi, seokjeong(崔錫鼎, 1646~1715). He is a disciple of Namguman(南九萬) and Parksechae(朴世采), and is a man who played an active part by political soron(少論) leader in the middle of the Joseon Dynasty. It is also a central figure that links the genealogy of the late Joseon Dynasty, which leads to Namguman(南九萬)-Choiseokjeong(崔錫鼎)-Chotaeeok(趙泰億). He wrote total 14 persuasive style prose. The time of creation is from around 1671 until the end of life. In this paper, the preoses to be analyzed are Sunukron(荀彧論), Bujadaegaron(夫子待賈論) and Muneongyebyeon(文言系辭辨). The reverse idea that reverses the existing discussion is outstanding, and the work which is unique in composition is Sunukron(荀彧論). Bujadaegaron(夫子待賈論) is a work that uses the ryubi(類比) to increase persuasiveness and converts the existing perspective. Muneongyebyeon(文言系辭辨) is a work that attempted to harmonize in the formality of vocabulary, sentence and composition while showing the logical perfection to dismiss the counter-argument's prerequisite. For example, Muneongyebyeon(文言系辭辨) consists of a total of five paragraphs in aspect of composition, each paragraph arranged in good order. In addition, this work presented sequential arguments, used the incremental method which emphasizes the importance of arguments as it moves backward.

A study on finding topics for the application of storytelling method in mathematics education: centered on JiSuYongYukDo and JiSuGuiMunDo (수학교육에서의 스토리텔링 방식 적용을 위한 소재 연구: 지수용육도와 지수귀문도를 중심으로)

  • Park, Kyo-Sik
    • Journal of the Korean School Mathematics Society
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    • v.15 no.1
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    • pp.155-169
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    • 2012
  • In this paper, we explored the possibility that JiSuYongYukDo and JiSuGuiMunDo which were posed by Suk-Jung Choi can be used for storytelling. Firstly, from the solutions of JiSuYongYukDo and JiSuGuiMunDo which were offered by Suk-Jung Choi, students can inquire out finding four characteristics such as: He chose expected values as magic numbers, used pairs of two complementary numbers, there are independent four pairs of numbers which do not affect other pairs, and the array which exchange every two complementary numbers in certain solution is also solution. Secondly, in case of JiSuYongYukDo students can inquire out finding six numbers that satisfy certain condition instead of finding solutions, and in case of JiSuGuiMunDo students can inquire out finding eleven numbers that satisfy certain conditions instead of finding solutions. And through this strategy, they know that Suk-Jung Choi style solutions can be obtained variously in one's own way without undergoing many trials and errors.

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The thought of numerical theory of $Sh\grave{a}o$ $K\bar{a}ngji\acute{e}$ and it's influence on (소강절의 수론 사상과 <구수략>에 미친 영향)

  • Jung, Hae-Nam
    • Journal for History of Mathematics
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    • v.23 no.4
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    • pp.1-15
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    • 2010
  • We study the thought of numerical theory of $Sh\grave{a}o$ $K\bar{a}ngji\acute{e}$. He explained the change of universe and everything in his theoretical system in tradition of . It is contained in his . We conjecture that this book influenced . Choi Suk Jung tried to embody the ideas of $Sh\grave{a}o$ $K\bar{a}ngji\acute{e}$ in .

Mathematical work of CHOI Seok-Jeong(崔錫鼎) and LEE Se-Gu(李世龜) (최석정(崔錫鼎)의 산학연구와 ≪양와집(養窩集)≫의 저자 이세구(李世龜))

  • Lee, Sang-Gu;Lee, Jae Hwa
    • Journal for History of Mathematics
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    • v.28 no.2
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    • pp.73-83
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    • 2015
  • In this paper, we give answers to some interesting questions about a Confucian scholar and mathematician in the late Joseon Dynasty, CHOI Seok-Jeong(崔錫鼎, 1646-1715), who was inducted into the Science and Technology Hall of Fame (http://kast.or.kr/HALL) for his mathematical achievements in October, 2013. In particular, we discover that CHOI Seok-Jeong was able to devote his natural abilities and time to do research on mathematics, and that he frequently communicated with his friend and fellow scholar, LEE Se-Gu(李世龜, 1646-1700), who was an expert on the astronomical calendar and mathematics, based on at least 24 letters between the two.

넙치와 조기의 원산지 판정을 위한 미토콘드리아 ND-4와 cytochrome-b의 PCR-RFLP 분석

  • 최윤실;최은주;이석근;최석정;진덕희
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2003.05a
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    • pp.283-284
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    • 2003
  • 수산물 수입량의 증가에 따른 국가간 관세편익을 제공하고 시장질서 및 수산물의 안전성을 유지하여 어종을 보호하기 위해 원산지 표시 제도가 시행되었으나, 유통 수산물에 대한 원산지 표시 방법이 형태 및 색채 등 형태학적 방법을 주로 이용하고 있어 원산지 판정의 신뢰도가 저하되고 있는 실정이다. 또한 양식산 어류가 자연산 어류로 표시되어 판매되기도 하므로, 좀 더 구체적이고 과학적인 방법을 이용하여 정확하게 원산지를 판정할 필요가 있다. (중략)

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A study on magic labelling of Hadoguodo (하도구오도(河圖九五圖)의 magic labelling에 대한 연구)

  • Park, Kyo Sik
    • Journal for History of Mathematics
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    • v.33 no.6
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    • pp.315-325
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    • 2020
  • In this study, how Choi Seok-Jeong made Hadoguodo is presumed. Choi SeokJeong's Hadoguodo does not actually reflect the Hado. But it is verified that Hadoguodo reflecting Hado can be made. In addition, it is verified that Hadoguodo can be made so that not only the sum of the nine numbers of each square are all 207 but also the sum of the nine numbers in the horizontal and vertical directions are all 207.