自然常数 e 确实是一个奇妙的数字，这里的 e 并不仅仅是一个字母，它还代表数学中的一个 无理常数，约等于 2.718281828459 。 但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。

A place for cute E girls and girls into nerdy things and looking cute! uwu

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