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The Bayer designation naming scheme for stars typically uses the first Greek letter, α, for the brightest star in each constellation, and runs through the alphabet before switching to Latin letters. In mathematical finance , the Greeks are the variables denoted by Greek letters used to describe the risk of certain investments.
Roman numerals: for example the word "six" in the clue might be used to indicate the letters VI; The name of a chemical element may be used to signify its symbol; e.g., W for tungsten; The days of the week; e.g., TH for Thursday; Country codes; e.g., "Switzerland" can indicate the letters CH; ICAO spelling alphabet: where Mike signifies M and ...
The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BC. [2] [3] It was derived from the earlier Phoenician alphabet, [4] and is the earliest known alphabetic script to have developed distinct letters for vowels as well as consonants. [5]
Sigma with caron: Nonstandard letter for Cypriot Greek [9] and Pontic Greek [10] representing /ʃ/ Σ̈σ̈: Sigma with diaeresis: Arvanitika letter for /ʃ/ [7] Τ̌τ̌: Tau with caron: Nonstandard letter for Cypriot Greek representing /c/ [9] Ύύ: Upsilon with acute: High pitch on short vowel or rising pitch on long vowel Ὺὺ: Upsilon ...
Sigma (/ ˈ s ɪ ɡ m ə / SIG-mə; [1] uppercase Σ, lowercase σ, lowercase in word-final position ς; Ancient Greek: σίγμα) is the eighteenth letter of the Greek alphabet. In the system of Greek numerals , it has a value of 200.
Note the use of San at the end of most names, and the difference between San and Mu (with a shorter right stem, ) in the word "ΑΜΥΝΤΑΣ". Use of San in archaic Sicyonian writing: shard incised with the dedicatory inscription "ΗΕΡΟΟΣ" (classic Greek spelling Ἥρωος, "of the Hero"), using San together with consonantal H and a characteristic Sikyonian X-shaped form of Epsilon.
Epsilon (US: / ˈ ɛ p s ɪ l ɒ n /, [1] UK: / ɛ p ˈ s aɪ l ə n /; [2] uppercase Ε, lowercase ε or ϵ; Greek: έψιλον) is the fifth letter of the Greek alphabet, corresponding phonetically to a mid front unrounded vowel IPA: or IPA:.
It is the consonantal doublet of the vowel letter upsilon (/u/), which was also derived from waw but was placed near the end of the Greek alphabet. Digamma or wau is in turn the ancestor of the Latin letter F. As an alphabetic letter, it is attested in archaic and dialectal ancient Greek inscriptions until the classical period.