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 . Proper noun en math 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 en Euler's constant, which often refers to other constants, most notably the Euler's constant constant (also known as the Euler–Mascheroni constant). Synonyms en Napier's constant Translations the mathematical constant e Bulgarian: bg Не́перово число́ n, bg О́йлерово число́ n Finnish: fi Neperin luku German: de Eulersche Zahl f Japanese: ja ネイピア数 Neipia-sū Portuguese: pt número de Neper m, pt número de Euler m en Numbers