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自然常数e到底自然在哪？
source link: https://news.cnblogs.com/n/625037/
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自然常数e 是一个奇妙的数字，这里的e 并不仅仅代表一个字母，它还是一个数学中的无理常数，约等于2.718281828459。但你是否有想过，它到底怎么来的呢？为啥一个无理数却被人们称之为“自然常数”？说到e，我们会很自然地想起另一个无理常数π 。π 的含义可以通过下图中的内接与外切多边形
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