The number e, sometimes called Euler's number or Napier's constant, is one of the most important Numbers in mathematics.
数字e有时候也被称为欧拉系数或者欧拉常数，是数学运算中非常重要的数字之一。
The number e, sometimes called Euler's number or Napier's constant, is one of the most important Numbers in mathematics.
数字e有时候也被称为欧拉系数或者欧拉常数，是数学运算中非常重要的数字之一。
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