for preliminary discussion Cartan connection applications In Riemannian geometry , we can introduce a coordinate system over the Riemannian manifold at least, over a Chart topology chart , giving n coordinates math x i text , qquad i 1, dots, n math for an n dimensional manifold. Locally, at least, this gives a basis for the 1 forms, dx sup i sup where d is the exterior derivative . The dual basis for the tangent space is e sub i sub . Now, let s choose an orthonormal basis for the fiber bundle fibers of T. The rest is index manipulation. Example Take a 3 sphere with the radius R and give it polar coordinate s &alpha , &theta , &phi . e e sub &alpha sub R, e e sub &theta sub R sin &alpha and e e sub &phi sub R sin &alpha sin &theta form an orthonormal basis of T. Call these e sub 1 sub , e sub 2 sub and e sub 3 sub . Given the metric &eta , we can ignore the covariant and contravariant distinction for T. Then, the dreibein, math e 1 R , d alpha math math e 2 R , sin alpha d theta math math e 3 R , sin alpha sin theta d phi math . So, math de 1 0 math math de 2 R cos alpha d alpha wedge d theta math math de 3 R cos alpha sin theta d alpha wedge d phi sin alpha cos theta d theta wedge d phi math . from the relation math d mathbf A e de A wedge e 0 math , we get math A 12 cos alpha , d theta math math A 13 cos alpha , sin theta d phi math math A 23 cos theta , d phi math . d sub A sub &eta 0 tells us A is antisymmetric So, math mathbf F d mathbf A mathbf A wedge mathbf A math , math F 12 sin alpha d alpha wedge d theta math math F 13 sin alpha sin theta d alpha wedge d phi math math F 23 sin 2 alpha sin theta d theta wedge d phi math Category Differential geometry Category Mathematical notation Geometry stub ... more details
wiktionary tetradTetrad may refer to Meiosis Meiosis I Tetrad chromosomal formation , a chromosomal formation in meiosis Tetrad general relativity , a mathematical frame of reference in general relativity Tetrad genetics , the four spores of a yeast Tetrad Greek philosophy , the first number formed by the addition and multiplication of equals Tetradindexnotation , a concept in differential geometry Tetrad music , a set of four notes Tetrad unit of area , an area 2km x 2km square Tetromino , a shape composed of four squares Tetrad of media effects , a pedagogical tool disambig ... more details
Unreferenced date December 2009 Indexnotation is used in mathematics and computer programming to specify the elements of matrix mathematics matrices or the components of a vector geometry vector . The formalism of how indices are used varies according to the discipline. In particular, there are different methods for referring to the elements of a list, a vector, or a matrix, depending on whether one is writing a formal mathematical paper for publication, or when one is writing a computer program . Indexnotation in mathematics Image Matrix.svg thumb 247px right Elements of matrix A are described with two subscripts or indices. It is quite common in mathematical writing to refer to the elements ... of tensors . The terms indexnotation , or indicial notation are sometimes used to refer to Einstein notation . Indexnotation in computing In several programming languages, indexnotation is a way ... i 1 s . DEFAULTSORT IndexNotation Category Mathematical notation Category Computer programming ... mathbf b 0 math math mathbf c 1 mathbf a 1 mathbf b 1 math and so on. More than one index is used to describe ... the index of the element size is used to address inside the array. For example, if an array of integers ... arrays Things become more interesting when we consider arrays with more than one index, for example ... dimensional by computing a single index from the two consider a one dimensional array where each element ... to a particular element of the array by writing tt tablename first index second index tt . The compiler computes the total number of memory cells occupied by each row, uses the first index to find the address of the desired row, and then uses the second index to find the address of the desired ... element tt tablename first index second index tt , the compiler generates instructions to look up the address of the row specified by the first index, and use this address as the base when computing the address of the element specified by the second index. Example This function multiplies two ... more details
The tetrad formalism is a transformed coordinate approach to General Relativity . In the tetrad formalism, a tetrad basis is chosen a set of four independent vector fields math e a mu a 1 dots4 math that together span the 4D vector space at each point in spacetime. All tensors of the theory are then expressed in this vector basis, by projecting them against members of the tetrad. For example, the spacetime metric itself can be transformed from a fixed coordinate basis to the tetrad basis math g mu nu rightarrow g a b g mu nu e a mu e b nu math The advantage of the tetrad formalism over the standard coordinate based approach to GR lies in the ability to choose the tetrad basis to reflect important physical aspects of the spacetime. Popular tetrad bases include orthonormal tetrads and null tetrads. The latter are used frequently in problems dealing with radiation, and are the basis of the Newman Penrose formalism . Category Relativity Category Mathematical notation ... more details
otheruses Tetrad disambiguation The tetrad is the four spore s of a yeast or Chlamydomonas , that separate after mating. If the two parents have a mutation in two different genes, the tetrad can segregate as the parental ditype PD , the non parental ditype NPD or as the tetratype TT . Image saccharomycescerevisiaetetrad.png frame Saccharomyces cerevisiae tetrad Parental ditype A tetrad type containing two different genotypes , both of which are parental. A spore arrangement in Ascomycetes that contains only the two non recombinant type ascospores . Non parental ditype A non parental ditype NPD is a spore arrangement in that contains only the two recombinant type ascospores assuming two segregating loci . A tetrad type containing two different genotypes, both of which are recombinant. Tetratype A Tetratype is a tetrad containing four different genotypes, two parental and two recombinant. A spore arrangement in Ascomycetes that consists of two parental and two recombinant spores indicates a single crossover between two linked loci. Linkage analysis The ratio between the different types arising after the sporulation is a measure of the genetic linkage linkage between the two genes. Tetrad Dissection Tetrad Dissection has become a powerful tool of yeast geneticists, and is used in conjunction with the many established procedures utilizing the versatility of yeasts as model organism ... spores of a yeast tetrad to be separated and germinated individually to form isolated spore colonies. Uses Tetrad analysis can be used to confirm whether a phenotype is caused by a specific mutation ... media to form a tetrad containing four haploid spores. Tetrads can then be prepared with Zymolyase ... needle and deposited in separate positions on a petri dish . Tools Traditionally, tetrad ..., instruments have since been developed specifically for tetrad dissection the most advanced allow ... links Tetrad Dissection Training Video http www.youtube.com watch?v YHe3IE8fJn8 Part One http ... more details
In medicine, Garrod s tetrad named for British physician Archibald Garrod comprises four Inborn error of metabolism inherited metabolic diseases albinism , alkaptonuria , cystinuria , and pentosuria . References Archibald E. Garrod. Inborn Errors of Metabolism The Croonian Lectures Delivered Before the Royal College of Physicians of London , 1908 DEFAULTSORT Garrod s Tetrad Category Metabolic disorders Medical stub ... more details
Infobox Novel series See Wikipedia WikiProject Novels or Wikipedia WikiProject Books name Radix Tetrad books Volumes br Radix novel Radix br In Other Worlds br Arc of the Dream br The Last Legends of Earth Novel The Last Legends of Earth author A. A. Attanasio country United States language English genre Science fiction novel publisher release date media type Print Hardcover Hardback & Paperback pages The Radix Tetrad is a group of four science fiction books by A. A. Attanasio . The first novel, the Nebula Award nominated Radix novel Radix , was published in 1981, and the last novel, The Last Legends of Earth novel The Last Legends of Earth was published in 1989. All four books of the Tetrad are being re issued by Phoenix Pick , an imprint of Arc Manor Publishers. The Tetrad Radix novel Radix 1981 In Other Worlds 1984 Arc of the Dream 1986 The Last Legends of Earth novel The Last Legends of Earth 1989 External links http www.RadixTetrad.com Radix Tetrad Site Category Science fiction book series ... more details
The tetrad test is a series of behavioral paradigms in which rodents treated with cannabinoids such as THC show effects ref Little PJ, Compton DR, Johnson MR, Melvin LS, Martin BR 1988 Pharmacology and stereoselectivity of structurally novel cannabinoids in mice. J Pharmacol Exp Ther 247 1046 1051. ref . It is widely used for screening drugs that induce cannabinoid receptor mediated effects in rodents. The four behavioral components of the tetrad are spontaneous activity, catalepsy, hypothermia, and analgesia. Common assays for these behavioral paradigms as follows Spontaneous activity or nowiki hypo nowiki motility is determined by an open field test, in which a mouse is placed in a cage with perpendicular grid lines, usually spaced by approx. 1 inch. An experimenter counts the number of line crossings by the mouse in a given amount of time. Catalepsy is determined by the bar test. The mouse is placed on a bar oriented parallel to and approximately 1 inch off of the ground. If the mouse remains immobile on the bar for typically 20 seconds, it is considered cataleptic. Hypothermia is determined by using a rectal probe to measure the rectal temperature. Analgesia is usually determined by the hot plate or tail immersion test. In the hot plate test, the mouse is placed on a heated plate, typically between 54 and 58 C. An experimenter measures the time it takes for the mouse to jump off of the hot plate. In the tail immersion test, the mouse is immobilized and its tail is placed into a warm water bath, typically also between 54 and 58 C. An experimenter measures the time it takes for the mouse to remove its tail from the water bath. Direct Cannabinoid receptor 1 CB1 agonists, such as THC the psychoactive component of marijuana , or WIN 55,212 2 , have effects in all components of the tetrad and induce hypomotility, catalepsy, hypothermia, and analgesia in rodents. Accordingly, all true tetrad effects are not observed following treatment with Receptor antagonist antagonist ... more details
Orphan date November 2010 Tetrad Islands is a group of small islands lying southeast of Borge Point , Trinity Island , in the Palmer Archipelago . Shown on an Argentine government chart of 1952. The name given by the United Kingdom Antarctic Place Names Committee UK APC in 1960 is descriptive there are four islands in the group. See also List of antarctic and sub antarctic islands usgs gazetteer coord 63 55 S 60 44 W display title Category Islands of Antarctica subantarctic geo stub ... more details
Refimprove date January 2010 In music theory , a tetrad is a set of four note music notes . When these four notes form a tertian chord they are more specifically called a seventh chord , after the diatonic and chromatic diatonic interval music interval from the root chord root of the chord music chord to its fourth note in root position close voicing . Four note chords are often formed of intervals other than thirds in 20th and 21st century music, however, where they are more generally referred to as tetrads see, for example, Howard Hanson Hanson 1960, Page needed date January 2010 , Gamer 1967, 37 & 52, and Forte 1985, 48 51, 53 . A four note segment of a scale music scale or twelve tone row is more particularly known as a tetrachord , Citation needed date January 2010 although Allen Forte in his The Structure of Atonal Music never uses the term tetrad , but occasionally employs the word tetrachord to mean any collection of four pitch classes Forte 1973, 1, 18, 68, 70, 73, 87, 88, 21, 119, 123, 124, 125, 138, 143, 171, 174, and 223 . See also Tetrachord Hexachord References Allen Forte Forte, Allen 1973 . The Structure of Atonal Music . New Haven and London Yale University Press. ISBN 0 300 01610 7 cloth ISBN 0 300 02120 8 pbk . Allen Forte Forte, Allen 1985 . Pitch Class Set Analysis Today . Music Analysis 4, nos. 1 & 2 March July Special Issue King s College London Music Analysis Conference 1984 29 58. Anonymous 2001 . Tetrachord . The New Grove Dictionary of Music and Musicians , second edition, edited by Stanley Sadie and John Tyrrell professor of music John Tyrrell . London Macmillan Publishers. Carlton Gamer Gamer, Carlton 1967 . Some Combinational Resources of Equal Tempered Systems . Journal of Music Theory 11, no. 1 32 59. Howard Hanson Hanson, Howard 1960 . Harmonic Materials of Modern Music Resources of the Tempered Scale . New York Appleton Century Crofts. Pitch Class Collection DEFAULTSORT Tetrad Music Category Intervals Category Simultaneities Music theory ... more details
A tetrad is an area 2  km x 2  km square. The term has a particular use in connection with the British Ordnance Survey British national grid reference system national grid , and then refers to any of the 25 such squares which make up a standard hectad unit of area hectad . ref name KMBRC cite web url http www.kmbrc.org.uk recording help gridrefhelp.php?page 6 title DINTY Tetrads publisher Kent and Medway Biological Records Centre accessdate 23 December 2008 ref Tetrads are sometimes used by biologists for reporting the distribution of species to maintain a degree of confidentiality about their data, ref cite web url http www.sxbrc.org.uk biodiversity recording ngr.php title National Grid References date 2008 publisher Sussex Biodiversity Record Centre accessdate 23 December 2008 ref though the system is not in universal use. ref name KMBRC The tetrads are labelled from A to Z omitting O according the DINTY system as shown in the grid below, which takes its name from the letters of the second line. ref name KMBRC border 1 cellpadding 5 cellspacing 0 E J P U Z D I N T Y C H M S X B G L R W A F K Q V References Reflist Category Units of area Cartography stub measurement stub ... more details
Abstract indexnotation is a mathematical notation for tensor s and spinor s that uses indices to indicate their types, rather than their components in a particular basis. The indices are mere placeholders, not related to any fixed basis and, in particular, are non numerical. The notation was introduced by Roger Penrose as a way to use the formal aspects of the Einstein summation convention in order to compensate for the difficulty in describing tensor contraction contraction s and covariant derivative covariant differentiation in modern abstract tensor notation, while preserving the explicit covariant covariance of the expressions involved. Let V be a vector space, and V sup sup its dual. Consider, for example, a rank 2 covariance and contravariance covariant tensor math scriptstyle h in V otimes V math . Then h can be identified with a bilinear form on V . In other words, it is a function of two arguments in V which can be represented as a pair of slots math h h , . , math , improves the display of the formula Abstract indexnotation is merely a labelling of the slots by Latin letters .... math Abstract indexnotation handles braiding as follows. On a particular tensor product, an ordering ... and relativistic fields . Category Tensors Category Mathematical notation de Abstrakte IndexNotation sl Abstraktni indeksni zapis ... is represented by the repetition of an index label, where one label is contravariant an upper index corresponding to a tensor in V and one label is covariant a lower index corresponding to a tensor ... sort of notation, for instance math h a bc d e in V a bc d e V otimes V otimes V otimes V otimes ... by the repetition of an index. Thus the first trace map is given by math mathrm Tr 12 h a bc d ... in notation by permuting the labels of the indices. Thus, for instance, with the Riemann tensor ... R abc d R cab d R bca d 0. math See also Penrose graphical notation Einstein notation References Roger ... more details
The mathematical notation of multi indices simplifies formulae used in multivariable calculus , partial differential equation s and the theory of distribution mathematics distribution s, by generalising the concept of an integer index mathematics index to an ordered tuple of indices. Multi indexnotation An n dimensional multi index is an n tuple math alpha alpha 1, alpha 2, ldots, alpha n math of non negative integers. For multi indices math alpha, beta in mathbb N n 0 math and math x x 1, x 2, ldots, x n in mathbb R n math one defines Componentwise sum and difference math alpha pm beta alpha 1 pm beta 1, , alpha 2 pm beta 2, ldots, , alpha n pm beta n math Partial order math alpha le beta quad Leftrightarrow quad alpha i le beta i quad forall ,i in 1, ldots,n math Sum of components absolute value math alpha alpha 1 alpha 2 cdots alpha n math Factorial math alpha alpha 1 cdot alpha 2 cdots alpha n math Binomial coefficient math binom alpha beta binom alpha 1 beta 1 binom alpha 2 beta 2 cdots binom alpha n beta n frac alpha beta alpha beta math Multinomial coefficient math binom k alpha frac k alpha 1 alpha 2 cdots alpha n frac k alpha math where math alpha k , math Power mathematics Power math x alpha x 1 alpha 1 x 2 alpha 2 ldots x n alpha n math Higher order partial derivative math partial alpha partial 1 alpha 1 partial 2 alpha 2 ldots partial n alpha n math where math partial i alpha i part alpha i part x i alpha i math Some applications The multi indexnotation allows the extension of many formulae from elementary calculus to the corresponding multi variable case. Here are some examples Multinomial theorem math biggl sum i 1 n x i biggr k sum alpha k binom k alpha , x alpha math Leibniz rule generalized product rule Leibniz formula For smooth functions f and g math ... . CRC Press. ISBN 0 8493 7158 9 planetmath id 4376 title multi index derivative of a power Category Combinatorics Category Mathematical notation Category Articles containing proofs bg de Multiindex ... more details
Image MediaTetrad.svg right thumb 250px A blank tetrad diagram Generally speaking, a tetrad is any set of four things. In Laws of Media 1988 and The Global Village 1989 , published posthumously, Marshall McLuhan summarized his ideas about media studies media in a concise tetrad of media effects . The tetrad is a means of examining the effects on society of any technology medium put another way a means of explaining the social processes underlying the adoption of a technology medium ref http robertkblechman.blogspot.com 2008 01 meta four play mcluhans tetrad and lvi.html , Meta Four Play McLuhan s Tetrad and L vi Strauss s Canonical Formula Part 2 ref by dividing its effects into four categories and displaying them simultaneously. McLuhan designed the tetrad as a pedagogical tool, phrasing his laws as questions with which to consider any medium What does the medium enhance? What does the medium make obsolete? What does the medium retrieve that had been obsolesced earlier? What does the medium flip into when pushed to extremes? The laws of the tetrad exist simultaneously, not successively or chronologically, and allow the questioner to explore the grammar and syntax of the language of media. McLuhan departs from his mentor Harold Innis in suggesting that a medium overheats , or reverses into an opposing form, when taken to its extreme. ref http www.collectionscanada.gc.ca innis mcluhan 030003 2030 e.html Tetrad in Old Messengers, New Media The Legacy of Innis and McLuhan , a virtual museum exhibition at Library and Archives Canada ref Visually, a tetrad can be depicted as four diamonds forming an X, with the name of a medium in the center. The two diamonds on the left of a tetrad are the Enhancement and Retrieval qualities of the medium, both Figure qualities. The two diamonds on the right of a tetrad are the Obsolescence and Reversal qualities, both Ground qualities. ref Electric Language Understanding the present , p. 28. ref Enhancement figure What the medium amplifies ... more details
Image Tetrad.svg thumb 220px Priya Hemenway s representation of the Tetrad. The tetrad or 4 number number four is the first number formed by the addition and multiplication of equals. To the Pythagoreanism Pythagoreans , this symbol and number represented justice as it is the first number that is divisible every way into equal parts. ref Hemenway, Priya. Divine Proportion Phi In Art, Nature, and Science . Sterling Publishing Company Inc., 2005. ISBN 1 4027 3522 7, p. 55 ref See also Monad Greek philosophy Monad Dyad Greek philosophy Dyad Triad Greek philosophy Triad Pentad Greek philosophy Pentad Decad Greek philosophy Decad Iamblichus of Chalcis Tetractys References reflist Category Symbols Category Pythagorean symbols ... more details
Wiktionary The term notation can refer to Written communication Phonographic writing systems , by definition ... structure, showing how the atoms are arranged Nuclear notation provides a convention in chemistry ... Movement Notation permits a graphical representation of human bodily movements Laban Movement ... Movement Notation permits a graphical representation of bodily movements of other species in addition ... to express logical ideas see the List of logic symbols Mathematics Mathematical notation is used to represent various kinds of mathematical ideas. All types of notation in probability Cartesian coordinate system , for representing position and other spatial concepts in analytic geometry Notation for differentiation , common representations of the derivative in calculus Big O notation , used ... Z notation , a formal notation for specifying objects using Zermelo Fraenkel set theory and first order predicate logic Ordinal notation Set builder notation , a formal notation for defining ... arrow notation Knuth s up arrow notation Steinhaus Moser notation Numeral system s, notation for writing numbers, including Arabic numeral s Roman numeral s Scientific notation for expressing large and small numbers Sign value notation , using signs or symbols to represent numbers Positional notation also known as place value notation, in which each position is related to the next by a multiplier which is called the base of that numeral system Binary notation , a positional notation in base two Octal notation, a positional notation in base eight, used in some computers Decimal notation , a positional notation in base ten Hexadecimal notation, a positional notation in base sixteen, commonly used in computers Sexagesimal notation, an ancient numeral system in base sixty See also Table of mathematical symbols for general tokens and their definitions... Music Musical notation permits a composer ... , although staff notation provides by far the most widely used Modern musical symbols . Physics Bra ... more details
selfref For the main index page of Wikipedia, see Portal Contents . For the alphabetical index, see Portal Contents Quick index . For the Wikipedia editor s aid, see Wikipedia Editor s index to Wikipedia . wiktionary index An index is a system used to make finding information easier. Index may also refer to Bibliographic index , a regularly updated print periodical publication that lists articles, books, and or other information items, usually within a particular discipline Index publishing , a detailed list, usually arranged alphabetically, of the specific information in a publication Index card ... such lists Index mathematics , for various meanings of the word in mathematics Index economics , a single number calculated from an array of prices and quantities Price index , a typical price for some good or service Index, Washington , a town in Snohomish County, Washington, United States Index, New York , a hamlet in the County and Town of Otsego, New York , United States Index typography , a largely ... and machining Thumb index , a round cut out in the pages of a publication Refractive index , a measure for optical properties of transparent materials. Publications Index Librorum Prohibitorum ... People, colloquially known as The Index , published by the Bundespr fstelle f r jugendgef hrdende Medien Index Magazine , a New York City based publication for art and culture Truman State University Index , the weekly student newspaper The Index , the student newspaper of Kalamazoo College The Index journal The Index journal , a European propaganda journal created by Henry Hotze to support the Confederate ... and community portal Toaru Majutsu no Index , a Japanese light novel, manga, and anime series In computers and information retrieval Index database , a feature in a computerized database which allows quick access to the rows in a table Index computer science , either an integer which identifies an array element, or a data structure which enables fast lookup Index search engine , for supporting information ... more details
The A index provides a daily average level for geomagnetic activity, which affects radio propagation , based on the K index . Because of the non linear relationship of the K scale to magnetometer fluctuations, it is not meaningful to take averages of a set of K indices. Instead, each K is converted into a linear scale called the equivalent three hourly range a index note the lower case . The daily A index is the average of eight a indices. Both A and K index reports are available on WWV radio station WWV or on the World Wide Web WWW . External links http www.sec.noaa.gov info Kindex.html primary source for this article http www.solarcycle24.com wwv.htm WWV A and K index reports on the web http dx.qsl.net propagation Comprehensive radio propagation site Category Geomagnetism geology stub ... more details
9 winners 2007&Itemid 20&layout default 20 20 20 2009 Index Award winners ref Design to Improve ... com content custom&view category&id 11 winners 2005&Itemid 18&layout default 2005 Index Award winners ... more details
Conway notation may refer to Conway chained arrow notation Conway notation knot theory Conway polyhedron notation Disambig eo Skribmaniero de Conway ... more details
, Brace Notation is a faster way to extract byte s from a string computer science string variable. Pseudocode Example An example of brace notation using pseudocode which would extract the 82nd character ... function MID would be pre a byte MID a string,82,1 pre Brace Notation in C In C programming language ... notation pre include stdio.h include string.h include stdlib.h int main int argc, char argv char a string ... Notation in C C Sharp programming language C handles brace notation differently. A string is a primitive type that returns a Character computing char when encountered with brace notation pre String ... with strings. Brace Notation in Python Strings in Python programming language Python are Immutable ... of the string in var len var 1 is the index of the last character of the string. d var ... var 1 takes 1 as the index number. That index is Interpreted language interpreted as the first character beginning from the end of the string. Consider 0 as the index boundary for a string zero is inclusive, hence it will return the first character. At index 1 and above, all characters belonging to each index are extracted from left to right. At index 1 and below, all characters are extracted from right to left. Since there are no more characters before index 0, Python redirects the cursor to the end ... index boundary is n 1 and the minimum index boundary is n which returns the same character as index ... beginning at index 0 up to and excluding 5. You can also extract every x character in the sequence, in this case x 2 pre var abcdefghijklmn var 0 len var 2 acegikm pre Brace Notation in PHP Php programming ... for finer control. Brace notation in PHP looks like pre a Hello . World c a 0 . a 1 . a 8 . a 3 ... mark as the opening quote s . Brace notation on a string always returns a string type. Brace Notation in JavaScript JavaScript brace notation works the same as in PHP and C . pre var myString Hello ... added features of this scripting language pre alert myString 1 alerts the message 10 pre At index 1 ... more details
Arrow notation may refer to Conway chained arrow notation Knuth s up arrow notation Arrow notation Ramsey theory , or Infinitary combinatorics mathdab Long comment to avoid being listed on short pages ... more details
Dot notation can refer to Newton s notation for differentiation see also Notation for differentiation . Lewis dot notation also known as Electron dot notation Dot decimal notation Kepatihan notation Dotted note Dot product DOT language Dot notation is also used in Lisp programming language Object oriented programming Earley algorithm disambig ... more details
Unreferenced date December 2006 Orphan date October 2009 Line notation is a typographical notation system using ASCII characters, most often used for IUPAC nomenclature chemical nomenclature . Line notation is a word and symbol description of an electrochemical cell widely used in chemistry. Chemistry International Chemical Identifier InChI ROSDAL Wiswesser Line Notation WLN Simplified molecular input line entry specification SMILES SYBYL Line Notation SLN Mathematics Internet shorthand notation TeX Music GUIDO music notation DEFAULTSORT Line Notation Category Notation Category Chemical nomenclature Category Musical notation Writingsystem stub ... more details
External links date March 2011 ABC notation DISPLAYTITLE Abc notation is a shorthand form of music notation ..., others saw the possibilities of using this form of notation as an ASCII code that could .... In this later form it remains a language for musical notation notating music using the ASCII character set. The earlier ABC notation was built on, standardized and changed to better fit the keyboard ... with others on a scrap of paper or a beer coaster remains, a simple and accessible form of music notation ... standard notation , the work of Chris Walshaw and others has opened this up with an increased list ... Walshaw first Chris publisher abcnotation.com url http abcnotation.com title abc music notation introduction accessdate March 1, 2008 ref ABC Notation being ASCII based, any text editor can be used to edit the music. Even so, there are now many ABC Notation software packages available that offer a wide variety of features, including the ability to read and process abc notation, including into midi files and as standard dotted notation. Such software is readily available for most computer systems ... notation history accessdate March 1, 2008 ref Later 3rd party software packages have provided direct ... http www.abc2win.com title ABC2Win Shareware Music Notation Program accessdate March 1, 2008 ref ... ref multi voice and multi staff notation, ref cite web last Moine first Jean Fran ois url http moinejf.free.fr ... March 1, 2008 ref History of ASCII ABC Notation In the 1980s Chris Walshaw began writing out ... Western music notation. Later he began using MusicTeX to notate French bagpipe music. To reduce the tedium ... url http abcnotation.com software.html title abc music notation software accessdate March 1 ... Chambers http trillian.mit.edu jc music abc doc ABCtut History.html chronology of ABC notation and software ... url http abcnotation.com learn.html title abc music notation learning accessdate March ... title abc music notation further information accessdate March 1, 2008 ref Guido Gonzato later compiled ... more details