Friday, January 15, 2016

Greek Numeral

Greek Numeral or Greek Number:
Greek Numeral or Greek Number are a system of representing numbers using the letters of the Greek alphabet. As the name 'alphabetical' suggests the numerals are based on giving values to the letters of the alphabet. There are 27 letters in the Greek alphabet in which 3 letters (digamma, koppa, and san) are obsolete ones. So there are 24 letters in classical Greek alphabet.

Classical Greek Alphabet:
NameUpper caseLowercase
AlphaΑα
BetaΒβ
Gamma Γ γ
DeltaΔ δ
Epsilon Ε ε
Digamma ObsoleteObsolete
Zeta Ζ ζ
Eta Η η
Theta Θ θ
Iota Ι ι
Kappa Κ κ
Lambda Λ λ
Mu Μ μ
Nu Ν ν
Xi or ksi Ξ ξ
Omicron Ο ο
Pi Π π
Koppa Obsolete Obsolete
Rho Ρ ρ
Sigma Σ σ
Tau Τ τ
Upsilon Υ υ
Phi Φ φ
Chi Χ χ
Psi Ψ ψ
Omega Ω ω
San or sampi Obsolete Obsolete

The first nine of these letters were taken as the symbols for 1, 2, ... , 9.
SymbolValue
α 1
β 2
γ 3
δ 4
ε 5
ϛ 6
ζ 7
η 8
θ 9

The next nine letters were taken as the symbols for 10, 20, ... , 90.
SymbolValue
ι 10
κ 20
λ 30
μ 40
ν 50
ξ 60
ο 70
π 80
ϟ 90

The remaining nine letters were taken as the symbols for 100, 200, ... , 900.
SymbolValue
ρ 100
σ 200
τ 300
υ 400
φ 500
χ 600
ψ 700
ω 800
ϡ 900

Numbers were formed by the additive principle. For example 21, 22, ... , 29 were written:
SymbolValue
κα 21
κβ 22
κγ 23
κδ 24
κε 25
κϛ 26
κζ 27
κη 28
κθ 29

Numbers 221,222, ... , 229 were written:
SymbolValue
σκα 221
σκβ 222
σκγ 223
σκδ 224
σκε 225
σκϛ 226
σκζ 227
σκη 28
σκθ 229

Alphabetic Greek Numerals:
UnitsTensHundreds
1αιρ
2βκσ
3γλτ
4δμυ
5ενφ
6ϛξχ
7ζοψ
8ηπω
9θϟϡ



Related topics:
Indian Numeral   |   Hindu Arabic Numeral   |   Roman Numeral   |   Number System   |   Numeral System

List of topics: Maths

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