Logarithm is the inverse function to exponentiation. The logarithm is used to answer the question; how many times we need to multiply a given number by itself to obtain another given number. For example how many times we need to multiply 2 by itself to obtain 8? And the answer is 3. And notation for that example is ㏒_{2}8 = 3

What are some use cases of logarithms?

Logarithms are being used in many areas in science such as seismography, measuring acidity, measuring sound intensity, to solve complex mathematical problems or to solve statistical problems.

What is natural logarithm?

Natural logarithm is a logarithm with base e, where e is transcendental and irrational number, and is approximately equal to 2.71828182845…

Notation of natural logarithm is ㏒_{e}x or ㏑x.

One important property of natural logarithm is that ㏑e = 1.