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 {\displaystyle e} . === Proper noun === Euler's number (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 γ {\displaystyle \gamma } (also known as the Euler–Mascheroni constant). ==== Synonyms ==== Napier's constant ==== Translations ====