Explain Natural logarithim

[delgeezee]

Can some explain natural logarthms, such as its relation to logs. I am having a terrible time understanding them.

 

[pka]

Can some explain natural logarthms, such as its relation to logs. I am having a terrible time understanding them.

This is one of my most favorite questions.
There is only one natural logarithm.
Here it is: $\displaystyle log(x)=y\text{ if and only if }e^y=x$.