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The letter Sigma. 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. In general mathematics, uppercase Σ is used as an operator for summation.
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 consonants as well as vowels. [5]
This is a list of letters of the Greek alphabet. The definition of a Greek letter for this list is a character encoded in the Unicode standard that a has script property of "Greek" and the general category of "Letter". An overview of the distribution of Greek letters is given in Greek script in Unicode.
Sigma (Σ or σ, word-final lowercase ς) is the 18th letter of the Greek alphabet. Sigma may also refer to: Companies and organizations
The Phoenician letter is continued in the Greek san (Ϻ) and possibly sampi (Ϡ), and in Etruscan 𐌑 Ś. It may have inspired the form of the letter tse in the Glagolitic and Cyrillic alphabets. The corresponding letter of the Ugaritic alphabet is 𐎕 ṣade.
Some know “sigma” as the 18th letter of the Greek alphabet but it’s also teen slang for a cool dude. According to Know Your Meme, sigma is “referring to a supposed classification for men ...
The history of the Greek alphabet starts with the adoption of Phoenician ... Bernal (1990) for the 18th–13th century, some for the 9th, but none of these are widely ...
The capital and miniscule forms of sigma, the 18th letter of the Greek alphabet. French Lettre grecque majuscule et minuscule sigma, la 18e lettre de l'alphabet grec.