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natural logarithm


from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A logarithm in which the base is the irrational number e (= 2.71828 … ). For example, ln 10 = loge10 = approximately 2.30258.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun mathematics The logarithm in base e; either the function that given returns such that or the value of .

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a logarithm to the base e


from Wiktionary, Creative Commons Attribution/Share-Alike License

From New Latin log naturalis, coined in 1668 by Nicholas Mercator in his book Logarithmo-technica.


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