## Friday, January 15, 2016

### Numeral System

What is Numeral System?
Numerals are the symbols used to represent numbers. A notational symbol that represents a number is called a numeral.

A numeral system is a writing system for expressing numbers.  A mathematical notation for representing numbers of a given set, using digits or other symbols in a consistent manner.

Numeral System List:
By Culture:
Indian Chinese Roman Greek Hindu Arabic
0 α 0
β 1
γ 2
δ 3
ε 4
ϝ 5
ζ 6
η 7
θ 8
ι 9

By Positional Notation:
Name Base
Unary 1
Binary 2
Ternary 3
Quaternary 4
Quinary 5
Senary 6
Octal 8
Decimal 10
Undecimal 11
Duodecimal 12
Tridecimal 13
Tertadecimal 14
Pentadecimal 15
Hexadecimal 16
Vigesimal 20
Tetravigesimal 24
Heptavigesimal 27
Trigesimal 30
Duotrigesimal 32
Hexatrigesimal 36
Sexagesimal 60
Tetrasexagesimal 64
Pentoctogesimal 85
Negabinary -2
Negaternary -3
Negadecimal -10
Quarter Imaginary 2i
Twindragon −1 ± i
Golden ratio base φ
Base exponential e
Base "Pi-nary" π
Base square root of 2 √2
Base twelfth root of 2 ¹²√2

Related topics:
Number System   |   Number Types   |   Indian Numeral   |   Roman Numeral   |   Greek Numeral

List of topics: Maths