Question

What is logarithm? ?

Answer 1

The logarithm is the inverse function to exponentiation. That means the logarithm of a given number x is the exponent to which another fixed number, the base b, must be raised, to produce that number x. In the simplest case the logarithm counts repeated multiplication of the same factor; e.g., since 1000 = 10 × 10 × 10 = 10³, the "logarithm to base 10" of 1000 is 3. The logarithm of x to base b is denoted as log_b (x)