Logarithm Calculator
Calculate the logarithm of a number
The calculator will find the logarithm (natural, decimal, etc.) of the given value to the given base ($$$e$$$, $$$10$$$, etc.).
The domain of the logarithm is $$$(0,\infty)$$$, the range is $$$(-\infty,\infty)$$$.
It is neither an even nor an odd function.
If you enter a value outside of the domain, the result will be a complex number.
If you enter a negative base, the result will be a complex number.
Your Input
Evaluate $$$\log_{e}\left(20\right) = \ln\left(20\right)$$$.
Answer
The value is $$$\ln\left(20\right)\approx 2.995732273553991$$$A.