π
Appearance
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Ancient Greek
[edit]Etymology
[edit]A compound of π (5) and Ξ (10).
Symbol
[edit]π β’ (D)
- A digit 50 in the decimal acrophonic numeral system that predated the gematria system. Equivalent to the Roman digit L.
Usage notes
[edit]Tens are appended for π Ξ 60, π ΞΞ 70, π ΞΞΞ 80, π ΞΞΞΞ 90.
The basic acrophonic units are Ξ 1, π 5, Ξ 10, Ξ 100, Ξ§ 1000 and Ξ 10,000. π combines with the higher digits for multiples of five.