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jandan.net
6 天
圆周率差点不是3.14的奇妙故事
每年3月14日的圆周率日庆祝π=3.14,但它险些变成6.28或1.57。历史与巧合交织,揭示数学常量的曲折命运。 你能想象吗?我们每年3月14日欢庆的圆周率日,纪念那个神秘的π=3.14,差点就不是这个数字。π不仅是个普适常数,甚至在几何规则不同的宇宙中,那些好奇 ...
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