.. _number_system: Number System ============================ A number system is defined as a system of writing to express numbers. It is the mathematical notation for representing numbers of a given set by using digits or other symbols in a consistent manner. It provides a unique representation of every number and represents the arithmetic and algebraic structure of the figures. In this chapter, we will cover **binary**, **octal**, **nonary** and **decimal** number system. .. toctree:: :maxdepth: 2 binary number-system-conversion representation questions