Maths Advanced


What are logarithms?

In this post, we define logarithms as indices: y = a^{x} is equivalent to x = log_{a}y , and explain why this definition only makes sense when a = 0, a \neq 1 , as a part of the Prelim Maths Advanced course under the topic Exponential and Logarithmic Functions and sub-part Introducing Logarithms. A logarithm answers the question “how many times do we multiply one number to get another number?”


The following two videos cover the definition of a logarithm and clearly goes over examples.

Part 1: Definition


Part 2: Numerical Examples