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Kokon Sampôki Concerning the open problems in Kazuyuki Sawuguchi's

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RIMS Kôkyûroku Bessatsu B8x (202x), 21-23

MS

口 一 之 編 『 古 今 算 法 記 』 の 遺 題 を 巡 っ て

,16.5pt

Concerning the open problems in Kazuyuki Sawuguchi's Kokon Sampôki

(Times New Roman, 17pt)

MS ,14pt, 田直樹

Naoki Osada

* (Times New Roman, 14.5pt, )

Abstract (Times New Roman, 12pt, )

The open problems of Kazuyuki Sawaguchi's Kokon Sampôki are famous for being solved in Hatsubi Sampô by Takakazu Seki using the method of elimination of unknowns. In this paper, we consider how Sawaguchi solved the open problems proposed by Masaoki Satô in the

Sampô Kongenki , and how he made the open problems his book, Kokon Sampôki. We will reveal what kind of solutions Sawaguchi had expected. We will also describe Sawaguchi's contribution to the development of early-modern Japanese mathematics (wasan) that were beyond Chinese traditional mathematics of that time.

(Times New Roman, 11pt)

§1. MS ,11.5pt,

(1671)

(1669) 150 171 42

13 128

1Received February 15, 2021. Revised March 10, 2021. (英文、Times New Roman, 9.5pt)

2020 Mathematics Subject Classification(s): 01A27,01A45

Key Words: History of Japanese Mathematics, simultaneous algebraic equations elimination of unknowns, Seki Takakazu, Sawaguchi Kazuyuki

*東京女子大学 (日本文、MS明朝, 9pt)

email: [email protected]

沢口は序文で円や球の切片に関係する問題を「円理」の問題と呼んでおり、それらのうち弓形の弧長 の公式などは正しくないとして解答を与えてない。(日本文、MS明朝, 9pt)

2 98問と第99問のように数値だけが異なる場合、後の問題は答えだけを与えている。

3 26問は条件が足らないので「無術」として解いてない。

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22 Naoki Osada

15 (1674 )

(1679)

© 2021 Research Institute for Mathematical Sciences, Kyoto University. All rights reserved.

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23

Concerning the open problems in Kokon Sampôki

MS , 11.5pt

§2. Word MS ,11.5pt,

( ) Times New Roman,

MS明朝、中国語の場合は、DFKai-SB (楷書)を用いる。日本語で書く場合4の書式5

MS ,11pt

40×40

35mm, 30mm

16.5ptMS , ,

17ptTimes New Roman, ,

( ) 14pt MS , ,

( ) 14.5pt Times New Roman, ,

( ) 11.5pt  §1. MS ,

( ) 12pt  §1. Times New Roman ,

( ) 11.5pt MS

( ) 12pt Times New Roman

( ) 9pt (MS

( ) 9.5pt (Times New Roman

Times New Roman, 11pt

 

RIMS Kôkyûroku Bessatsu B9x (2021), nn-mm

(nn: )

4 英文で書く場合はご相談ください。

5 数理研はLaTeX(ラテフ)のスタイルファイルで書式を指定してますので、Wordのフォントの大きさは LaTeX で組版した場合と同じ大きさにしています。

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22 Naoki Osada

(mm: )

11pt (Times New Roman

11pt (Times New Roman

11pt (Times New Roman

11pt (Times New Roman

  1 2

行用い、1行目にページ番号、2行目に英文著者名(偶数ページ)あるいは英文題名

( )

MS ,11.5pt, ,

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[1] , MA/387

[2] ( ) 2008

(MS明 , 10.5pt)

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