A complete guide on the famous Euler’s formula for complex numbers, along with its interpretations, examples, derivations and numerous applications.

A gentle, concise introduction to the concept of Laplace transform, along with 9 basic examples to illustrate its derivations and usage.

The definitive guide to logarithm: its concept, its applications, its algebraic rules and its expansion into complex numbers.

An in-depth guide into quadratic factorisation — from basic factoring techniques to AC method to quadratic formula and the general method.