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Attic numerals
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Attic numerals
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{{short description|Symbolic number notation used by the ancient Greeks}}{{pp|small=yes}} {{SpecialChars }}(File:EPMA-IGI-3-259-272-Tribute-list-3-crop1-cbadj.png|thumb|Detail of stela showing tributes paid by allies of Athens in the League of Delos. The amounts are in Attic numerals, using the drachma sign "ð
" instead of the generic unit sign "Î". Some amounts are "ð
" = 50, "ÎÎÎ" = 300, "ð
ÎÎÎ" = 800, "ÎÎÎð
ð
ð
" = 33, "Χ" = 1000, and "Χð
ð
Îð
ð
"? = 1562?.)(File:Aegina Prison Attic Numerals.jpg|thumb|Plaque above the main entrance to the orphanage, which later became a prison, on the Greek island of Aegina. The ancient Greek inscription translates as âThe Governor erected this orphanage in the year 1828â. The year is shown as Χð
ÎÎÎÎÎÎ ÎÎÎ.)The Attic numerals are a symbolic number notation used by the ancient Greeks. They were also known as Herodianic numerals because they were first described in a 2nd-century manuscript by Herodian; or as acrophonic numerals (from acrophony) because the basic symbols derive from the first letters of the (ancient) Greek words that the symbols represented. The Attic numerals were a decimal (base 10) system, like the older Egyptian and the later Etruscan, Roman, and Hindu-Arabic systems. Namely, the number to be represented was broken down into simple multiples (1 to 9) of powers of ten â units, tens, hundred, thousands, etc.. Then these parts were written down in sequence, in order of decreasing value. As in the basic Roman system, each part was written down using a combination of two symbols, representing one and five times that power of ten.Attic numerals were adopted possibly starting in the 7th century BCE and although presently called Attic, they or variations thereof were universally used by the Greeks. No other numeral system is known to have been used on Attic inscriptions before the Common Era. Their replacement by the classic Greek numerals started in other parts of the Greek World around the 3rd century BCE. They are believed to have served as model for the Etruscan number system, although the two were nearly contemporary and the symbols are not obviously related. {{cn|date=April 2019}}- the content below is remote from Wikipedia
- it has been imported raw for GetWiki
The system
Symbols
The Attic numerals used the following main symbols, with the given values:JOURNAL, The Journal of Philology, XXII, 1883, Cambridge, The Greek numerical alphabet, James, Gow, James Gow (scholar),weblink 278â9, BOOK, History of Mathematics, David Eugene, Smith, David Eugene Smith, Reading and writing numbers: Greek numerals, 49â51, 1958, 2,weblink Dover Publications, 9780486204307, New York, {|class="wikitable"1 | Î | || Tally mark? | ð | I |
5 | Î | ð | ð | Î ÎÎΤΠ{{IPA>[pÉntÉ]}} Modern: | ð¡ | V |
10 | Î | ð | ð | ÎÎÎÎ {{IPA>[deka]}} Modern: | ð¢ | X |
50 | (File:Attic_00050.svg|x25px) | ð | ð | "Î" in "Î ": 10 à 5 = 50 | ð£ | L |
100 | Î | ð | ð | ÎÎÎÎΤÎÎ {{IPA>[hÉkaton]}} Modern: | ð | C |
500 | (File:Attic_00500.svg|x25px) | ð | ð | "Î" in "Î ": 100 Ã 5 = 500 | ? | D |
1000 | Χ | ð | ð | ΧÎÎÎÎÎ {{IPA>[kÊ°ilioi]}} Modern: | ? | M |
5000 | (File:Attic_05000.svg|x25px) | ð | | "Χ" in "Î ": 1000 à 5 = 5000 | ? | V |
10000 | Î | ð | ÎΥΡÎÎÎ {{IPA>[myrioi]}} Modern: | ? | X |
50000 | (File:Attic_50000.svg|x25px) | ð | "Î" in "Î ": 10000 Ã 5 = 50000 | ? | L |
Special symbols
The fractions "one half" and "one quarter" were written "ð " and "ð ", respectively.The symbols were slightly modified when used to encode amounts in talents (with a small capital tau, "Τ") or in staters (with a small capital sigma, "Σ"). Specific numeral symbols were used to represent one drachma ("ð ") and ten minas "ð ".The symbol for 100
The use of "Î" (capital eta) for 100 reflects the early date of this numbering system. In the Greek language of the time, the word for a hundred would be pronounced {{IPA|[hÉkaton]}} (with a "rough aspirated" sound /h/) and written "ÎÎÎÎΤÎÎ", because "Î" represented the sound /h/ in the Attic alphabet. In later, "classical" Greek, with the adoption of the Ionic alphabet throughout the majority of Greece, the letter eta had come to represent the long e sound while the rough aspiration was no longer marked.BOOK, Arthur Geoffrey, Woodhead, 1981, The Study of Greek Inscriptions, Second, Cambridge, Cambridge University Press, 18, 0-521-23188-4, BOOK, Smyth, Herbert Weir, Herbert Weir Smyth, Messing, Gordon M., 2002, 1920, Greek Grammar, Revised, Cambridge, MA, Harvard University Press, 10, §14, 0-674-36250-0, It was not until Aristophanes of Byzantium introduced the various accent markings during the Hellenistic period that the spiritus asper began to represent /h/, resulting in the spelling .As found in Katharevousa, polytonic Greek in general and Modern Greek in particular before the 1982 official adoption of the monotonic system; however, neither the /h/ phoneme nor the spiritus asper, or "rough breathing mark", are present in monotonic Standard Modern Greek, resulting in the standard modern spelling .Simple multiples of powers of ten
Multiples 1 to 9 of each power of ten were written by combining the two corresponding "1" and "5" digits, namely:{|class="wikitable" style="text-align:right;"1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
Tens | | ð ÎÎÎÎ |
| 90 |
Hundreds | | ð ÎÎÎÎ |
| 900 |
Thousands | | ð ΧΧΧΧ |
| 9000 |
Tens of thousands | | ð ÎÎÎÎ |
| 90000 |
General numbers
In general, the number to be represented was broken down into simple multiples (1 to 9) of powers of ten â units, tens, hundred, thousands, etc.. Then these parts would be written down in sequence, from largest to smallest value. For example:- 49 = 40 + 9 = ÎÎÎÎ + Î ÎÎÎÎ = ÎÎÎÎÎ ÎÎÎÎ
- 2001 = 2000 + 1 = ΧΧ + I = ΧΧÎ
- 1982 = 1000 + 900 + 80 + 2 = Χ + ð ÎÎÎÎ + ð ÎÎÎ + ÎÎ = Χð ÎÎÎÎð ÎÎÎÎÎ
- 62708 = 60000 + 2000 + 700 + 8 = ð Î + ΧΧ + ð ÎÎ + Î ÎÎÎ = ð ÎΧΧð ÎÎÎ ÎÎÎ.
Unicode
{{Unicode chart Ancient Greek Numbers}}{{Table_Numeral Systems}}See also
- {{annotated link|Etruscan numerals}}
- {{annotated link|Greek mathematics}}
- {{annotated link|Greek numerals}}
- {{annotated link|History of ancient numeral systems}}
- {{annotated link|List of numeral system topics}}
- {{annotated link|List of numeral systems}}
Notes and references
{{reflist}}{{list of writing systems}}{{Ancient Greek mathematics}}- content above as imported from Wikipedia
- "Attic numerals" does not exist on GetWiki (yet)
- time: 7:13am EDT - Sat, May 18 2024
- "Attic numerals" does not exist on GetWiki (yet)
- time: 7:13am EDT - Sat, May 18 2024
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