noun
e (mathematical constant); Euler's number; Napier's constant
Mathematical term for the base of the natural logarithm, approximately 2.71828. Used in technical contexts.
ネイピア数は自然対数の底として知られている。
Napier's constant is known as the base of the natural logarithm.
微積分では、ネイピア数が頻繁に登場する。
In calculus, Euler's number appears frequently.