Euler's number

English

Etymology

Named after Swiss mathematician Leonhard Euler (1707–1783), who did, however, not discover it, although he likely gave the constant its modern symbol $e$.

Proper noun

Euler's number

1. (mathematics) The mathematical constant e, the base of the natural logarithm; an irrational, transcendental number approximately equal to 2.71828.

Usage notes

Should not be confused with Euler's constant, which often refers to other constants, most notably the constant $\gamma$ (also known as the Euler–Mascheroni constant).

Synonyms

• Napier's constant

Translations

the mathematical constant e

• Finnish: Neperin luku (fi)