Logarithm Calculator

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 $$$(-\infty,\infty)$$$.

If you enter the 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.

It is neither an even nor an odd function.

If the calculator did not compute something or you have identified an error, or you have a suggestion/feedback, please write it in the comments below.

Your Input

Evaluate $$$\log_{e}\left(20\right) = \ln\left(20\right)$$$.

Answer

The value is $$$\ln{\left(20 \right)}\approx 2.99573227355399$$$A.