## 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
Vigesimal 20
Tetravigesimal 24
Heptavigesimal 27
Trigesimal 30
Duotrigesimal 32
Hexatrigesimal 36
Sexagesimal 60
Tetrasexagesimal 64
Pentoctogesimal 85
Negabinary -2
Negaternary -3
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