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Digraph (other)
Digraph, often misspelled as diagraph, may refer to: * Digraph (orthography), a pair of characters used together to represent a single sound, such as "sh" in English * Ligature (writing), the joining of two letters as a single glyph, such as "æ" * Digraph (computing), a group of two characters in computer source code to be treated as a single character * A directed graph, in graph theory * Digraph, a component of a CIA cryptonym, a covert code name * Digraph, a two-letter ISO 639-1 language code See also * Digraphia, use of multiple complete writing systems for one language. * Digram (other) / Digramme * Bigram * Trigraph (other) * Multigraph (other) * Unigraph * wikt:Diagraph, a combination of a protractor and a scale ruler Scale or scales may refer to: Mathematics * Scale (descriptive set theory), an object defined on a set of points * Scale (ratio), the ratio of a linear dimension of a model to the corresponding dimension of the origina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digraph (orthography)
A digraph or digram (from the grc, δίς , "double" and , "to write") is a pair of characters used in the orthography of a language to write either a single phoneme (distinct sound), or a sequence of phonemes that does not correspond to the normal values of the two characters combined. Some digraphs represent phonemes that cannot be represented with a single character in the writing system of a language, like the English '' sh'' in ''ship'' and ''fish''. Other digraphs represent phonemes that can also be represented by single characters. A digraph that shares its pronunciation with a single character may be a relic from an earlier period of the language when the digraph had a different pronunciation, or may represent a distinction that is made only in certain dialects, like the English '' wh''. Some such digraphs are used for purely etymological reasons, like '' rh'' in English. Digraphs are used in some Romanization schemes, like the '' zh'' often used to represent the Ru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ligature (writing)
In writing and typography, a ligature occurs where two or more graphemes or letters are joined to form a single glyph. Examples are the characters æ and œ used in English and French, in which the letters 'a' and 'e' are joined for the first ligature and the letters 'o' and 'e' are joined for the second ligature. For stylistic and legibility reasons, 'f' and 'i' are often merged to create 'fi' (where the tittle on the 'i' merges with the hood of the 'f'); the same is true of 's' and 't' to create 'st'. The common ampersand (&) developed from a ligature in which the handwritten Latin letters 'E' and 't' (spelling , Latin for 'and') were combined. History The earliest known script Sumerian cuneiform and Egyptian hieratic both include many cases of character combinations that gradually evolve from ligatures into separately recognizable characters. Other notable ligatures, such as the Brahmic abugidas and the Germanic bind rune, figure prominently throughout ancient manuscript ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digraph (computing)
In computer programming, digraphs and trigraphs are sequences of two and three characters, respectively, that appear in source code and, according to a programming language's specification, should be treated as if they were single characters. Various reasons exist for using digraphs and trigraphs: keyboards may not have keys to cover the entire character set of the language, input of special characters may be difficult, text editors may reserve some characters for special use and so on. Trigraphs might also be used for some EBCDIC code pages that lack characters such as . History The basic character set of the C programming language is a subset of the ASCII character set that includes nine characters which lie outside the ISO 646 invariant character set. This can pose a problem for writing source code when the encoding (and possibly keyboard) being used does not support any of these nine characters. The ANSI C committee invented trigraphs as a way of entering source code using ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Directed Graph
In mathematics, and more specifically in graph theory, a directed graph (or digraph) is a graph that is made up of a set of vertices connected by directed edges, often called arcs. Definition In formal terms, a directed graph is an ordered pair where * ''V'' is a set whose elements are called '' vertices'', ''nodes'', or ''points''; * ''A'' is a set of ordered pairs of vertices, called ''arcs'', ''directed edges'' (sometimes simply ''edges'' with the corresponding set named ''E'' instead of ''A''), ''arrows'', or ''directed lines''. It differs from an ordinary or undirected graph, in that the latter is defined in terms of unordered pairs of vertices, which are usually called ''edges'', ''links'' or ''lines''. The aforementioned definition does not allow a directed graph to have multiple arrows with the same source and target nodes, but some authors consider a broader definition that allows directed graphs to have such multiple arcs (namely, they allow the arc set to be a m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CIA Cryptonym
CIA cryptonyms are code names or code words used by the U.S. Central Intelligence Agency (CIA) to refer to projects, operations, persons, agencies, etc. Format of cryptonyms CIA cryptonyms sometimes contain a two character prefix called a digraph, which designates a geographical or functional area. Certain digraphs were changed over time; for example, the digraph for the Soviet Union changed at least twice. The rest is either an arbitrary dictionary word, or occasionally the digraph and the cryptonym combine to form a dictionary word (e.g., AEROPLANE) or can be read out as a simple phrase (e.g., WIBOTHER, read as "Why bother!"). Cryptonyms are sometimes written with a slash after the digraph, e.g., ZR/RIFLE, and sometimes in one sequence, e.g., ZRRIFLE. The latter format is the more common style in CIA documents. Examples from publications by former CIA personnel show that the terms "code name" and "cryptonym" can refer to the names of operations as well as to individual persons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of ISO 639-1 Codes
ISO 639 is a standardized nomenclature used to classify languages. Each language is assigned a two-letter (639-1) and three-letter ( and ) lowercase abbreviation, amended in later versions of the nomenclature. This table lists all of: * ISO 639-1: two-letter codes, one per language for ISO 639 macrolanguage And some of: * ISO 639-2/T: three-letter codes, for the same languages as 639-1 * ISO 639-2/B: three-letter codes, mostly the same as , but with some codes derived from English names rather than native names of languages (in the following table, these differing codes are highlighted in boldface) * ISO 639-3 ISO 639-3:2007, ''Codes for the representation of names of languages – Part 3: Alpha-3 code for comprehensive coverage of languages'', is an international standard for language codes in the ISO 639 series. It defines three-letter codes for ...: three-letter codes, the same as for languages, but with distinct codes for each variety of an ISO 639 macrolanguage T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digraphia
In sociolinguistics, digraphia refers to the use of more than one writing system for the same language. Synchronic digraphia is the coexistence of two or more writing systems for the same language, while diachronic digraphia (or sequential digraphia) is the replacement of one writing system by another for a particular language. Hindustani language, Hindustani, with an Urdu literary standard written in Urdu alphabet and a High Hindi standard written in Devanagari, is one of the 'textbook examples' of synchronic digraphia, cases where writing systems are used contemporaneously. An example of diachronic digraphia, where one writing system replaces another, occurs in the case of Turkish, for which the traditional Arabic script, Arabic writing system was replaced with a Latin-based system in 1928. Digraphia has implications in language planning, language policy, and language ideology. Terminology Etymology English wikt:digraphia, ''digraphia'', like French language, French wikt:digr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digram (other)
Digram or digramme may refer to: * a bigram or digram, a sequence of two words, syllables, or letters * a digraph (orthography), a pair of letters used to write one speech sound * a Taixuanjing symbol with two lines See also * Digraph (other) Digraph may refer to: * (typography) Digraph (orthography), a pair of characters used together to represent a single sound, such as "sh" in English * (Unicode) orthographic ligature, the joining of two letters as a single glyph, such as "æ"; cons ... * Trigram (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digramme
Digram or digramme may refer to: * a bigram or digram, a sequence of two words, syllables, or letters * a digraph (orthography), a pair of letters used to write one speech sound * a Taixuanjing The text ''Tài Xuán Jīng'' ("Canon of Supreme Mystery", ) is a guide for divination composed by the Confucian writer Yang Xiong (53 BCE – 18 CE). The first draft of this work was completed in 2 BCE (in the decade before the fall of the West ... symbol with two lines See also * Digraph (other) * Trigram (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bigram
A bigram or digram is a sequence of two adjacent elements from a string of tokens, which are typically letters, syllables, or words. A bigram is an ''n''-gram for ''n''=2. The frequency distribution of every bigram in a string is commonly used for simple statistical analysis of text in many applications, including in computational linguistics, cryptography, speech recognition, and so on. ''Gappy bigrams'' or ''skipping bigrams'' are word pairs which allow gaps (perhaps avoiding connecting words, or allowing some simulation of dependencies, as in a dependency grammar). ''Head word bigrams'' are gappy bigrams with an explicit dependency relationship. Details Bigrams help provide the conditional probability of a token given the preceding token, when the relation of the conditional probability is applied: P(W_n, W_) = That is, the probability P() of a token W_n given the preceding token W_ is equal to the probability of their bigram, or the co-occurrence of the two tokens P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trigraph (other)
Trigraph may refer to: Computing * Digraphs and trigraphs, a group of characters used to symbolise one character *An octal or decimal representation of byte values *Mnemonics for machine language instructions *As language codes in ISO 639 ISO 639 is a set of standards by the International Organization for Standardization that is concerned with representation of names for languages and language groups. It was also the name of the original standard, approved in 1967 (as ''ISO 639/R ... Cryptography *As substitution group in a substitution cipher *As combinations in the Ling Qi Jing Mathematics *As a generalization of graphs where there is a set of edges called ''semi-adjacent'' Other uses * Trigraph (orthography), a sound representation in orthography See also * Digraph (other) * Tetragraph * Multigraph (other) {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multigraph (other)
A multigraph is a mathematical graph where some pairs of vertices are connected by more than one edge. Multigraph may also refer to: * Multigraph (orthography), a sequence of letters that behaves as a unit and is not the sum of its parts * Multigraph (programming), a sequence of characters that appear in source code which should be treated as if they were a single character {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
