Number System

Number System defines a set of values used to represent quantity.

Name	Base
Binary Number	2
Octal Number	8
Decimal Number	10
Duodecimal Number	12
Hexadecimal Number	16

Within number systems, there are 2 types:

• Weighted
• Unweighted

Math Number Systems

Name	Numbers
Natural Numbers	$\mathbb{N}=\{0,1,2,3,\dots \}$
Integers	$\mathbb{Z}=\{\dots ,-2,-1,0,1,2,\dots \}$
Rational Numbers	$\mathbb{Q}$
Real Numbers	$\mathbb{R}$
Complex Number	$\mathbb{C}$
Integers (module $n$)	${\mathbb{Z}}_n=\{[0],[1],[2],\dots ,[n-1]\}$
Finite field of prime size	${\mathbb{F}}_p={\mathbb{Z}}_p$