• Title/Summary/Keyword: 사전배열 순서

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Gugo Wonlyu of Jeong Yag-yong (정약용의 구고원류)

  • Kim, Young Wook
    • Journal for History of Mathematics
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    • v.32 no.3
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    • pp.97-108
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    • 2019
  • This paper is an outgrowth of a study on recent papers and presentations of Hong Sung Sa, Hong Young Hee and/or Lee Seung On on Gugo Wonlyu which is believed to be written by the famous Joseon scholar Jeong Yag-yong. Most of what is discussed here is already explained in these papers and presentations but due to brevity of the papers it is not understood by most of us. Here we present them in more explicit and mathematical ways which, we hope, will make them more accessible to those who have little background in history of classical Joseon mathematics. We also explain them using elementary projective geometry which allow us to visualize Pythagorean polynomials geometrically.