正七边形的超高精度尺规作图1E-10

来源: 蒲汇塘渔夫于 2011-01-17 19:16:07 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

渔夫欣喜地发现一个达到精度在1E-10的尺规作图法，见图。

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