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Sigma
Sigma (; uppercase Σ, lowercase σ, lowercase in word-final position ς; grc-gre, 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. When used at the end of a letter-case word (one that does not use all caps), the final form (ς) is used. In ' (Odysseus), for example, the two lowercase sigmas (σ) in the center of the name are distinct from the word-final sigma (ς) at the end. The Latin letter S derives from sigma while the Cyrillic letter Es derives from a lunate form of this letter. History The shape (Σς) and alphabetic position of sigma is derived from the Phoenician letter ( ''shin''). Sigma's original name may have been ''san'', but due to the complicated early history of the Greek epichoric alphabets, ''san'' came to be identified as a separate letter in the Greek alphabet, represented as Ϻ. Herodotus reports that "san" wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greek Alphabet
The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BCE. It is derived from the earlier Phoenician alphabet, and was the earliest known alphabetic script to have distinct letters for vowels as well as consonants. In Archaic Greece, Archaic and early Classical Greece, Classical times, the Greek alphabet existed in Archaic Greek alphabets, many local variants, but, by the end of the 4th century BCE, the Euclidean alphabet, with 24 letters, ordered from alpha to omega, had become standard and it is this version that is still used for Greek writing today. The letter case, uppercase and lowercase forms of the 24 letters are: : , , , , , , , , , , , , , , , , , /ς, , , , , , . The Greek alphabet is the ancestor of the Latin script, Latin and Cyrillic scripts. Like Latin and Cyrillic, Greek originally had only a single form of each letter; it developed the letter case distinction between uppercase and lowercase in parallel with Latin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Summation
In mathematics, summation is the addition of a sequence of any kind of numbers, called ''addends'' or ''summands''; the result is their ''sum'' or ''total''. Beside numbers, other types of values can be summed as well: functions, vectors, matrices, polynomials and, in general, elements of any type of mathematical objects on which an operation denoted "+" is defined. Summations of infinite sequences are called series. They involve the concept of limit, and are not considered in this article. The summation of an explicit sequence is denoted as a succession of additions. For example, summation of is denoted , and results in 9, that is, . Because addition is associative and commutative, there is no need of parentheses, and the result is the same irrespective of the order of the summands. Summation of a sequence of only one element results in this element itself. Summation of an empty sequence (a sequence with no elements), by convention, results in 0. Very often, the elements ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greek Numerals
Greek numerals, also known as Ionic, Ionian, Milesian, or Alexandrian numerals, are a system of writing numbers using the letters of the Greek alphabet. In modern Greece, they are still used for ordinal numbers and in contexts similar to those in which Roman numerals are still used in the Western world. For ordinary cardinal numbers, however, modern Greece uses Arabic numerals. History The Minoan and Mycenaean civilization Mycenaean Greece (or the Mycenaean civilization) was the last phase of the Bronze Age in Ancient Greece, spanning the period from approximately 1750 to 1050 BC.. It represents the first advanced and distinctively Greek civilization in mainland ...s' Linear A and Linear B alphabets used a different system, called Aegean numerals, which included number-only symbols for powers of ten: = 1, = 10, = 100, = 1000, and = 10000. Attic numerals comprised another system that came into use perhaps in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Es (Cyrillic)
Es (С с; italics: ) is a letter of the Cyrillic script. It commonly represents the voiceless alveolar fricative , like the pronunciation of in "sand". History The Cyrillic letter Es is derived from a variant of the Greek letter Sigma known as ''lunate sigma'' (Ϲ ϲ), in use in the Greek-speaking world in early medieval times. It has no connection to the Latin letter C (C c), which is a descendant of the Greek letter Gamma (Γ γ); however, many languages (for different reasons) apply the value of to the Latin letter C, especially before front vowels ''e'' and ''i'' (examples being English, French, Mexican Spanish); see hard and soft C. As its name suggests, Es is related to the Latin S. The name of Es in the Early Cyrillic alphabet was (''slovo''), meaning "word" or "speech". In the Cyrillic numeral system, Es had a value of 200. Form In the modern Latinized Cyrillic fonts in use today, the Cyrillic letter Es looks exactly like the Latin let ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archaic Greek Alphabets
Many local variants of the Greek alphabet were employed in ancient Greece during the archaic and early classical periods, until around 400 BC, when they were replaced by the classical 24-letter alphabet that is the standard today. All forms of the Greek alphabet were originally based on the shared inventory of the 22 symbols of the Phoenician alphabet, with the exception of the letter Samekh, whose Greek counterpart Xi () was used only in a sub-group of Greek alphabets, and with the common addition of Upsilon () for the vowel . The local, so-called ''epichoric'', alphabets differed in many ways: in the use of the consonant symbols , and ; in the use of the innovative long vowel letters ( and ), in the absence or presence of Η in its original consonant function (); in the use or non-use of certain archaic letters ( = , = , = ); and in many details of the individual shapes of each letter. The system now familiar as the standard 24-letter Greek alphabet was originally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San (letter)
San (Ϻ) was an archaic letter of the Greek alphabet. Its shape was similar to modern M or Mu, or to a modern Greek Sigma (Σ) turned sideways, and it was used as an alternative to Sigma to denote the sound . Unlike Sigma, whose position in the alphabet is between Rho and Tau, San appeared between Pi and Qoppa in alphabetic order. In addition to denoting this separate archaic character, the name San was also used as an alternative name to denote the standard letter Sigma. Historical use Sigma and san The existence of the two competing letters Sigma and San is traditionally believed to have been due to confusion during the adoption of the Greek alphabet from the Phoenician script, because Phoenician had more sibilant sounds than Greek had. According to one theory, the distribution of the sibilant letters in Greek is due to pair-wise confusion between the sounds and alphabet positions of the four Phoenician sibilant signs: Greek Sigma got its shape and alphabetic position fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samekh
Samekh (Phoenician ''sāmek'' ; Hebrew ''samekh'' , Syriac ''semkaṯ'') is the fifteenth letter of the Semitic abjads, including the Hebrew alphabet. Samekh represents a voiceless alveolar fricative . Unlike most Semitic consonants, the pronunciation of remains constant between vowels and before voiced consonants. In the Hebrew language, the samekh generally shares a similar pronunciation as the left-dotted shin. The numerical value of samekh is 60. History The Phoenician letter may continue a glyph from the Middle Bronze Age alphabets, either based on a hieroglyph for a tent peg or support, possibly the ''djed'' "pillar" hieroglyph (c.f. Hebrew root סמך s-m-kh 'support', סֶמֶךְ semekh 'support, rest', סוֹמֵךְ somekh 'support peg, post', סוֹמְכָה somkha 'armrest', סָמוֹכָה smokha 'stake, support', indirectly '' s'mikhah'' ; Aramaic סַמְכָא samkha 'socket, base', סְמַךְ smakh 'support, help'; Syriac ܣܡܟܐ semkha 'support') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uppercase
Letter case is the distinction between the Letter (alphabet), letters that are in larger uppercase or capitals (or more formally ''majuscule'') and smaller lowercase (or more formally ''minuscule'') in the written representation of certain languages. The writing systems that distinguish between the upper and lowercase have two parallel sets of letters, with each letter in one set usually having an equivalent in the other set. The two case variants are alternative representations of the same letter: they have the same name and pronunciation and are treated identically when sorting in alphabetical order. Letter case is generally applied in a mixed-case fashion, with both upper and lowercase letters appearing in a given piece of text for legibility. The choice of case is often prescribed by the grammar of a language or by the conventions of a particular discipline. In orthography, the uppercase is primarily reserved for special purposes, such as the first letter of a Sentence (ling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicholas Sims-Williams
Nicholas Sims-Williams, FBA (born 11 April 1949, Chatham, Kent) is a British professor of the School of Oriental and African Studies (SOAS), University of London, where he is the Research Professor of Iranian and Central Asian Studies at the Department of the Languages and Cultures of Near and Middle East. Sims-Williams is a scholar who specializes in Central Asian history, particularly the study of Sogdian and Bactrian languages. He is also a member of the advisory council of the ''Iranian Studies'' journal. Sims-Williams recently worked on a dedicatory Sogdian inscription, dated to the 1st–3rd centuries CE, that was discovered at Kultobe in Kazakhstan. It alludes to military operations of the principal towns of Sogdiana against the nomads in the north. The inscription tends to confirm the confederational organization of the Kangju state and its various allies that was known previously from the Chinese texts.Nicholas Sims-Williams and Franz Grenet, ''The Sogdian Inscriptions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xi (letter)
Xi is the 14th letter of the Greek alphabet (uppercase Ξ, lowercase ξ; el, ξι), representing the voiceless consonant cluster . It is pronounced in Modern Greek, and generally or in English. In the system of Greek numerals, it has a value of 60. Xi was derived from the Phoenician letter samekh . Xi is distinct from the letter chi, which gave its form to the Latin letter X. Greek Both in classical Ancient Greek and in Modern Greek, the letter Ξ represents the consonant cluster /ks/. In some archaic local variants of the Greek alphabet, this letter was missing. Instead, especially in the dialects of most of the Greek mainland and Euboea, the cluster /ks/ was represented by Χ (which in classical Greek is chi, used for ). Because this variant of the Greek alphabet was used in Magna Graecia (the Greek colonies in Sicily and the southern part of the Italian peninsula), the Latin alphabet borrowed Χ rather than Ξ as the Latin letter that represented the /ks/ cluster ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madaba Jerusalem Mosaic
Madaba ( ar, مادبا; Biblical Hebrew: ''Mēḏəḇāʾ''; grc, Μήδαβα) is the capital city of Madaba Governorate in central Jordan, with a population of about 60,000. It is best known for its Byzantine and Umayyad mosaics, especially a large Byzantine-era mosaic map of the Holy Land. Madaba is located south-west of the capital Amman. History Madaba dates from the Middle Bronze Age. The town of Madaba was once a Moabite border city, mentioned in the Bible in Numbers 21:30 and Joshua 13:9. Control over the city changed back and forth between Israel and Moab, as mentioned in the Mesha Stele. During its rule by the Roman and Byzantine empires from the 2nd to the 7th centuries, the city formed part of the Provincia Arabia set up by the Roman Emperor Trajan to replace the Nabataean kingdom of Petra. The first evidence for a Christian community in the city, with its own bishop, is found in the Acts of the Council of Chalcedon in 451, where Constantine, Metropolita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proto-Greek Language
The Proto-Greek language (also known as Proto-Hellenic) is the Indo-European language which was the last common ancestor of all varieties of Greek, including Mycenaean Greek, the subsequent ancient Greek dialects (i.e., Attic, Ionic, Aeolic, Doric, Arcadocypriot, and ancient Macedonian—either a dialect or a closely related Hellenic language) and, ultimately, Koine, Byzantine and Modern Greek (along with its variants). Proto-Greek speakers entered Greece sometime between 2200 and 1900 BCE, with the diversification into a southern and a northern group beginning by approximately 1700 BCE. Origins Proto-Greek emerged from the diversification of the Proto-Indo-European language (PIE), the last phase of which gave rise to the later language families occurred BCE. Pre-Proto-Greek, the Indo-European dialect from which Proto-Greek originated, emerged BCE in an area which bordered pre- Proto-Indo-Iranian to the east and pre-Proto-Armenian and pre-Proto- Phrygian to the west, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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