راژمان ِ عددهای ِ یونانی râžmân-e adadhâ-ye Yunâni
*Fr.: numération grecque*
A → *numeral system* in which letters represent
numbers. In an earlier system, called acrophonic, the symbols for numerals came from
the first letter of the number name. Subsequently, the numerals were based
on giving values to the letters of alphabet.
For example α, β, γ, and δ represented 1, 2, 3, and
4; while ι, κ, λ, and μ stood for 10, 20, 30, and 40, and
ρ, σ, τ, and υ for 100, 200, 300, and 400. The Greek also used the
additive principle. For example 11, 12, 13, 14, and 374 were written ια,
ιβ, ιγ, ιδ, and τοδ. The numbers
between 1000 and 9000 were expressed by adding a subscript or superscript ι
(*iota*) to the symbols for 1 to 9. For example ιA and ιΘ for 1000
and 9000. Numbers greater than 9999 were expressed using M, which was the myriad, 10,000.
Therefore, since 123 was represented by ρκγ, 123,000 was written
as M^{ρκγ}. → *numeral*; → *system*. |