e

$e$ e

The constant e is an irrational number that occurs widely in mathematics and science. It is approximately equal to the value 2.71828. The number e is defined as the limit of the expression (1+1/n)ⁿ as n becomes infinitely large. The number e is also known as Euler's number, for Leonhard Euler, who discovered the famous formula e^iπ = -1. This expresses the relationship between all three constants e, i, and π. [RA] {EP}