natural logarithm , Napierian logarithm, Napierian logarithms
n.
logarithm which has the irrational number "e" as its base (Mathematics)
Natural logarithm
The natural logarithm, formerly known as the
hyperbolic logarithm, is the
logarithm to the
base e, where e is an
irrational constant approximately equal to 2.718281828459. In simple terms, the natural logarithm of a number x is the power to which e would have to be raised to equal x — for example the natural log of e itself is 1 because e1 = e, while the natural logarithm of 1 would be 0, since e0 = 1. The natural logarithm can be defined for all positive
real numbers x as the
area under the curve y = 1/t from 1 to x, and can also be defined for non-zero
complex numbers as explained below.
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natural logarithm
Noun
1. a logarithm to the base e
(synonym) Napierian logarithm
(hypernym) logarithm, log
Natural logarithm
Logarithm to the base e (approximately 2.7183).
Natural logarithm
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