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Theta
Theta (, ) uppercase Θ or ; lowercase θ or ; ''thē̂ta'' ; Modern: ''thī́ta'' ) is the eighth letter of the Greek alphabet, derived from the Phoenician letter Teth 𐤈. In the system of Greek numerals, it has a value of 9. Greek In Ancient Greek, θ represented the aspirated voiceless dental plosive , but in Modern Greek it represents the voiceless dental fricative . Forms In its archaic form, θ was written as a cross within a circle (as in the Etruscan or ), and later, as a line or point in circle ( or ). The cursive form was retained by Unicode as , separate from . (There is also .) For the purpose of writing Greek text, the two can be font variants of a single character, but are also used as distinct symbols in technical and mathematical contexts. Extensive lists of examples follow below at Mathematics and Science. is also common in biblical and theological usage e.g. instead of πρόθεσις (means placing in public or laying out a corpse). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angle
In Euclidean geometry, an angle can refer to a number of concepts relating to the intersection of two straight Line (geometry), lines at a Point (geometry), point. Formally, an angle is a figure lying in a Euclidean plane, plane formed by two Ray (geometry), rays, called the ''Side (plane geometry), sides'' of the angle, sharing a common endpoint, called the ''vertex (geometry), vertex'' of the angle. More generally angles are also formed wherever two lines, rays or line segments come together, such as at the corners of triangles and other polygons. An angle can be considered as the region of the plane bounded by the sides. Angles can also be formed by the intersection of two planes or by two intersecting curves, in which case the rays lying tangent to each curve at the point of intersection define the angle. The term ''angle'' is also used for the size, magnitude (mathematics), magnitude or Physical quantity, quantity of these types of geometric figures and in this context an a ... [...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 BC. It was derived from the earlier Phoenician alphabet, and is the earliest known alphabetic script to systematically write 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 BC, the Ionia, Ionic-based Euclidean alphabet, with 24 letters, ordered from alpha to omega, had become standard throughout the Greek-speaking world and is the version that is still used for Greek writing today. The letter case, uppercase and lowercase forms of the 24 letters are: : , , , , , , , , , , , , , , , , , , , , , , , The Greek alphabet is the ancestor of several scripts, such as the Latin script, Latin, Gothic alphabet, Gothic, Coptic script, Coptic, and Cyrillic scripts. Throughout antiquity, Greek had only a single uppercas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin Theta
Latin theta (uppercase: , lowercase: θ) is an additional letter of the Latin script, based on the lowercase letter theta from the Greek alphabet. It is used in Cypriot Arabic, Gros Ventre, Comox, Fox, Thompson, Tuscarora, Halkomelem, Wakhi, Yavapai, Havasupai–Hualapai, and Romani. It also historically was used in the Lepsius Standard Alphabet. Usage The letter appears in the International Standard Alphabet of the Romani language, where it represents the voiceless alveolar plosive ( when placed after a vowel, and the voiced alveolar plosive ( when placed after a nasal consonant.Hancock, Ian. ''A Handbook of Vlax Romani'' In the Gros Ventre, Fox, and Comox languages, it represents the voiceless dental fricative ( � sound. It was used in the Lepsius Standard Alphabet created for transcription of Egyptian hieroglyphs and African languages. In it, it represented the voiceless dental fricative The voiceless dental non-sibilant fricative is a type of consonan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greek Numerals
Greek numerals, also known as Ionic, Ionian, Milesian, or Alexandrian numerals, is a numeral system, system of writing numbers using the letters of the Greek alphabet. In modern Greece, they are still used for ordinal number (linguistics), ordinal numbers and in contexts similar to those in which Roman numerals are still used in the Western world. For ordinary cardinal number (linguistics), cardinal numbers, however, modern Greece uses Arabic numerals. History The Minoans, Minoan and Mycenaean civilizations' 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 composed another system that came into use perhaps in the 7th century BC. They were acrophonic, derived (after the initial one) from the first letters of the names of the numbers represented. They ran = 1, = ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teth
Teth, also written as or Tet, is the ninth letter of the Semitic abjads, including Phoenician ''ṭēt'' 𐤈, Hebrew, Aramaic ''ṭēṯ'' 𐡈, and Syriac ''ṭēṯ'' ܛ, and Arabic ''ṭāʾ'' . It is also related to the Ancient North Arabian 𐪗, South Arabian , and Geʽez . The Phoenician letter also gave rise to the Greek theta (), originally an aspirated voiceless dental stop but now used for the voiceless dental fricative. The Arabic letter (ط) is sometimes transliterated as ''Tah'' in English, for example in Arabic script in Unicode. The sound value of Teth is , one of the Semitic emphatic consonants. Origins The Phoenician letter name may mean " spinning wheel" pictured as (compare Hebrew root (''ṭ-w-y'') meaning 'spinning' (a thread) which begins with Teth). According to another hypothesis (Brian Colless), the letter possibly continues a Middle Bronze Age glyph named 'good', Aramaic 'tav', Hebrew 'tov', Syriac ܛܒܐ 'tava', modern Arabi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fita
Fita (Ѳ ѳ; italics: ''Ѳ ѳ'') is a letter of the Early Cyrillic alphabet. The shape and the name of the letter are derived from the Θ, Greek letter theta (Θ θ). In the ISO 9 system, Ѳ is romanized using F grave accent (F̀ f̀). In the Cyrillic numerals, Cyrillic numeral system, Fita has a numerical value of 9. Shape In traditional (Church Slavonic) typefaces, the central line is typically about twice the width of the letter's body and has serifs similar to those on the letter Te (Cyrillic), Т: . Sometimes the line is drawn as low as the baseline, which makes the letter difficult to distinguish from De (Cyrillic), Д. Usage Old Russian and Church Slavonic The traditional Russian name of the letter is ''fitá'' (or, in pre-1918 spelling, ѳита́). Fita was mainly used to write proper names and loanwords derived from or via Greek. Russians pronounced these names with the sound instead of (like the pronunciation of in "thin"), for example "Theodor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romanization Of Greek
Romanization of Greek is the transliteration ( letter-mapping) or transcription (sound-mapping) of text from the Greek alphabet into the Latin alphabet. History The conventions for writing and romanizing Ancient Greek and Modern Greek differ markedly. The sound of the English letter B () was written as in ancient Greek but is now written as the digraph , while the modern sounds like the English letter V () instead. The Greek name became Johannes in Latin and then John in English, but in modern Greek has become ; this might be written as Yannis, Jani, Ioannis, Yiannis, or Giannis, but not Giannes or Giannēs as it would be for ancient Greek. The word might variously appear as Hagiοs, Agios, Aghios, or Ayios, or simply be translated as " Holy" or "Saint" in English forms of Greek placenames. Traditional English renderings of Greek names originated from Roman systems established in antiquity. The Roman alphabet itself was a form of the Cumaean alphabet derived f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Voiceless Dental Fricative
The voiceless dental non-sibilant fricative is a type of consonantal sound used in some spoken languages. It is familiar to most English speakers as the 'th' in ''think''. Though rather rare as a phoneme among the world's languages, it is encountered in some of the most widespread and influential ones. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is T. The IPA symbol is the lowercase Greek alphabet, Greek letter theta, which is used for this sound in post-classical Greek language, Greek, and the sound is thus often referred to as "theta". The dental non-sibilant fricatives are often called "interdental consonant, interdental" because they are often produced with the tongue between the upper and lower teeth, and not just against the back of the upper or lower teeth, as they are with other dental consonants. This sound and its Voiced dental fricative, voiced counterpart are rare phonemes, occurring in 4% of lang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tau Gallic CourDOr Metz 3147
Tau (; uppercase Τ, lowercase τ or \boldsymbol\tau; ) is the nineteenth letter of the Greek alphabet, representing the voiceless dental or alveolar plosive . In the system of Greek numerals, it has a value of 300. The name in English is pronounced or , but in Greek it is . This is because the pronunciation of the combination of Greek letters αυ can have the pronunciation of either , or , depending on what follows and if a diaeresis is present on the second vowel (see Greek orthography). Tau was derived from the Phoenician letter taw (𐤕). Letters that arose from tau include Roman T and Cyrillic Te (Т, т). Modern usage The lower-case letter τ is used as a symbol for: * Specific tax amount Biology * The expressed period of the freerunning rhythm of an animal, i.e., the length of the daily cycle of an animal when kept in constant light or constant darkness * The dose interval in pharmacokinetics * The core variable in general tau theory * Tau in bioch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reforms Of Russian Orthography
Russian orthography has been reformed officially and unofficially by changing the Russian alphabet over the course of the history of the Russian language. Several important reforms happened in the 18th–20th centuries. Early changes Old East Slavic adopted the Cyrillic script, approximately during the 10th century and at about the same time as the introduction of Eastern Christianity into the territories inhabited by the Eastern Slavs. No distinction was drawn between the vernacular language and the liturgical, though the latter was based on South Slavic languages, South Slavic rather than East Slavic languages, Eastern Slavic norms. As the language evolved, several letters, notably the ''yuses'' (Ѫ, Ѭ, Ѧ, Ѩ) were gradually and unsystematically discarded from both secular and church usage over the next centuries. The emergence of the centralized Russian state in the 15th and 16th centuries, the consequent rise of the state bureaucracy along with the development of the com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
