用內切多邊形趨近圓周長，沒法出錯。許多級數收斂於pi, 計算也沒法出錯。

來源: 科普閑談於 2023-11-03 20:57:14 [舊帖] [給我悄悄話] 本文已被閱讀：次

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用 內切多邊形趨近圓周長，沒法出錯。許多級數收斂於pi, 計算也沒法出錯。