It’s the inverse of exponentiation, specifically with base e (that’s why it’s “natural” — can expand more on that if you wish). i.e.
y = e^x <–> ln(y) = x
Plug in x=0, y=1 and you’ll see that ln(1) = 0 is essentially the same statement as e^0 = 1. In fact, the log of 1 with any base is equal to 0 for the same reason (any number raised to the power 0 is 1).
Latest Answers