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READ THESE ARTICLES# Definition of *natural logarithm* in English:

## natural logarithm

(also

**ln**,**log**)### noun

MathematicsA logarithm to the base e (2.71828 …).

*‘Normally, when mathematicians talk about logarithms, they mean so-called natural logarithms, which are logarithms to base e.’**‘Benjamin can also handle magic squares, natural logarithms, cube roots, and much more.’**‘In his spare time, between 1844 and 1847, he calculated the natural logarithms of the first 1005000 numbers to 7 decimal places.’**‘Variables were transformed with natural logarithms or square roots to normalize residuals.’**‘Euler asserts that the sum of the harmonic series equals the natural logarithm of infinity plus a quantity that is nearly a constant.’**‘According to the prime number theorem, the average gap length up to a certain prime equals the value of the natural logarithm of that prime.’**‘It has been known for over a century that as you progress up through the natural numbers, the average gap between one prime number p and the next is the natural logarithm of p.’**‘Due to a skewed distribution of the summed scale, the natural logarithm was used in the analysis.’**‘All variables used in this study were transformed to natural logarithms before the correlation analyses were performed.’**‘Having arrived at the above equation, we can use the exponential function and the natural logarithm to solve it.’*

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