How do you differentiate between the pronunciations of è and é in French? Beginner, sorry. Additional question: Is è the a in English bad or the e in English bed? Show all Followers 31 Viewed The natural constant e is indeed a wonderful number. The e here is not just a letter, it also represents an irrational constant in mathematics, which is approximately equal to 2.718281828459. But why is an irrational number called a "natural constant"? Speaking of e ,.
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