are natural logarithms of a number natural in any sense? Why are they called natural when the base is e and common when the base is 10?
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https://en.wikipedia.org/wiki/Natural_logarithm#Origin_of_the_term_natural_logarithm – Kat Sep 04 '16 at 03:17
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4I wonder if you have done any research before asking this question. – Sep 04 '16 at 03:19
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No, I haven't. I just read the Wikipedia page referred by Ron. – RedHelmet Sep 04 '16 at 03:46
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1Well, maybe in the future you can take a few minutes to try on your own. This will prevent your questions being put on hold. – Sep 04 '16 at 04:20
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Part of this involves calculus reasons, namely that the derivative of $\ln(x)$ is $1/x$, a claim other logarithms cannot make; so $\ln$ is a "unique" logarithm. Moreover, it's the inverse of $e^x$, which is also special among exponential functions, again for calculus reasons (it is its own derivative).
AJY
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