Definitions for natural logarithm
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Random House Webster's College Dictionary
nat′ural log′arithm(n.)
a logarithm having e as a base.
Category: Math
Ref: Symbol: ln; Also called Napierian logarithm.; Compare common logarithm.
Princeton's WordNet
natural logarithm, Napierian logarithm(noun)
a logarithm to the base e
Wiktionary
natural logarithm(Noun)
The logarithm in base e; either the function that given returns such that or the value of .
Origin: From log naturalis, coined in 1668 by Nicholas Mercator in his book Logarithmo-technica.
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