from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A logarithm in which the base is the irrational number e (= 2.71828 . . . ). For example, ln 10 = loge10 = approximately 2.30258. Also called Napierian logarithm.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The logarithm in base e; either the function that given returns such that or the value of .
from the GNU version of the Collaborative International Dictionary of English
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a logarithm to the base e
From New Latin log naturalis, coined in 1668 by Nicholas Mercator in his book Logarithmo-technica. (Wiktionary)