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世界真奇妙 on MSN
学数学必知：圆周率π的历史，从几何推导到无穷级数革命
圆周率 π 的历史溯源 圣经里有一段不太为人熟知的经文，是这么写的： “他又铸了一个铜海，样式是圆的，从这边到那边共十肘，高五肘，围腰三十肘。”（《列王纪上》7:23） 这段内容在《历代志下》4:2 中也能找到，记载的是公元前 950 ...
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