## The Definitive Higher Math Guide on Long Division and Its Variants — for Integers

A comprehensive look into the theory and applications of integer long division, along with its 4+ alternatives.

## Desmos: A Definitive Guide on Graphing and Computing

A comprehensive guide in using Desmos to graph equations/inequalities, perform computations and conduct basic statistical analysis.

## The Ultimate Guide to Logarithm — Theory & Applications

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

## Quadratic Factorisation: The Complete Guide

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

## Investment Algebra: How to Determine the Original Investment Amount from the Current Interest

How to determine the original investment amount solely from the interest amount — using algebra.

## How to Solve the Triangle with $A=30^{\circ}$, $b=40$, and $a=10$?

How to find the angles and the side lengths of a general triangle — using the law of sines.

## How to Solve a Logarithmic Inequality — When a Small Base is Involved?

A review on logarithm functions with base less than 1, and some key property which can be used to solve logarithmic inequalities based on it.