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周 三 徑 一

周 三 徑 一. 割圓術. 劉 徽 (公元220年左右). 什麼是割圓術？. 劉徽 把圓分成…. 3072個三角形！. 算出 丌=3.1416. 祖沖之 (公元 429-500). 24576 個三角形！. 3.1415926<丌<3.1415927. 疏率：2 2 / 7 密率：355 / 113. 祖沖之的紀錄足足保持了 1000 年！. 3.14159 265358979323846.... 山巔一石一壺酒 二侶舞扇舞 ３．１４１５９ ２６５３５ 把酒砌酒扇又搧 飽死囉.....

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周 三 徑 一

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  1. 周三徑一

  2. 割圓術 劉 徽 (公元220年左右)

  3. 什麼是割圓術？

  4. 劉徽 把圓分成…... 3072個三角形！ 算出 丌=3.1416

  5. 祖沖之 (公元 429-500)

  6. 24576 個三角形！ 3.1415926<丌<3.1415927 疏率：2 2 / 7 密率：355 / 113

  7. 祖沖之的紀錄足足保持了 1000 年！

  8. 3.14159 265358979323846.... 山巔一石一壺酒 二侶舞扇舞 ３．１４１５９ ２６５３５ 把酒砌酒扇又搧 飽死囉..... ８９７９３２３ ８４６.....

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