Wiktionarypar expressionExpression may refer to Symbolic expressionExpression language , a thought communicated by language Expression mathematics , a finite combination of symbols that are well formed according to applicable rules Expression programming , an instruction to execute something that will return a value Regular expression , a means of matching strings of text in computing Dynamics music Relative loudness Expression marks , music notating the musical dynamics Bodily expression The Breastfeeding expression of milk Emotional expression , verbal and non verbal behaviour that communicates emotion Facial expression , a movement of the face that conveys emotional state Gene expression , the process by which information from a gene is used in biochemistry Product names Expression album Expression album , an album by John Coltrane Expression crew , a breakdance crew. Expressions , the annual magazine of Vidyalankar Institute of Technology , Mumbai, India Microsoft Expression Studio , a digital media and graphic design suite Ex pression College for Digital Arts , a college in Emeryville, California for the entertainment industry disambig de Expression fr Expression ko it Espressione nl Expressie ja pl Ekspresja ksh U drock ru fi Lauseke sv Uttryck ... more details
Citations missing date August 2010 In computing, s expressions , sexprs or sexps for symbolic expression ... code as well as data. In the usual parenthesized syntax of Lisp, an s expression is classically ... of the ACM . ref Mathematical induction inductively as an atom, or an expression of the form code ... element of an S expression is commonly an operator or function name and any remaining elements ..., the Boolean logic Boolean expression written nowrap begin code 4 2 2 code nowrap end in C programming ... cell s. S expressions were originally intended only for data to be manipulated by M expression s, but the first implementation of Lisp was an interpreter of S expression encodings of M expressions, and Lisp ... as S expressions code milk juice honey marmalade code is a two element S expression whose elements ... free grammar for a tiny subset of English written as an s expression Gazdar Melish, Natural Language ... reads the textual representation of an s expression and returns Lisp data. The function PRINT can be used to output an s expression. The output then can be read with the function READ, when all printed ... are valid Lisp programs. code 1.0 3.1 code is a valid s expression, but not a valid Lisp program, since ... element of the expression . An S expression preceded by a single quotation mark, as in code ... S expression , in this case code quote x code . Standardization Standards for some Lisp derived programming languages include a specification for their S expression syntax. These include Common Lisp ... public key infrastructure SPKI . Rivest s format defines an S expression as being either an octet ..., intended to be more compact, easier to parse, and unique for any abstract S expression, is the Canonical ... intended to safely transport a canonically encoded S expression in a system which might change ... the format. See also M expression car and cdr cons Canonical S expressions Comparison of data ... Free software implementations are available http sexpr.sourceforge.net sfsexp the small, fast s expression ... more details
Infobox musical artist name The Expression image caption image size background group or band alias origin ... members past members Refer Member list The Expression were an Australian synthpop band formed in Sydney ... ARIA Charts charts in mid 1988. ref History The Expression formed in Sydney during 1981, although ... work Australian Rock Database title The Expression url http hem.passagen.se honga database e expression.html ..., New South Wales Sydney and formed The Expression, along with Stephen Manassah bass guitar and Steve ... Life , Machinations band Machinations . Mushroom Records signed The Expression to a recording ... album, The Expression , recorded in Sydney and mixed in New York , was produced by Charles Fisher ... The Expression work Allmusic publisher Macrovision accessdate 8 May 2009 ref Radio Birdman , Hoodoo ... and soon after the live line up of the band splintered, leaving the future of The Expression up in the air. Haran and Dowling opted to continue to work under The Expression banner, and recruited several ... by Ben Rogan Sade band Sade and Wally Brill. ref cite web url http www.discogs.com Expression Conscience release 953649 title The Expression Conscience publisher Discogs accessdate 2009 05 08 ref In March ... months elapsed before the next single from The Expression saw the light of day. Small Brave Land was released in July 1985 and was quickly followed by The Expression s second album Conscience , but neither ... ref name OzRockDb but by late 1985 the ever evolving contemporary music scene had left The Expression behind, and soon thereafter the band called it a day. In 2006, The Expression s two original albums ... url http www.clubtalk.com.au wiig test wiignew Wiir Artist.asp?A 12&C 20 title The Expression Conscience ...&C 24 title The Expression Rare & Un Released publisher What It Is Records accessdate 2009 05 08 Dead ... The Expression &mdash 1983 Mushroom small L38005 small A&M small AMLH 64975 small 2006 What It Is small ... http www.discogs.com artist Expression 2C The The Expression discography Discogs http musicbrainz.org ... more details
Unreferenced stub auto yes date December 2009 Ectopic expression is the expression of a gene in an abnormal place in an organism. This can be caused by a disease, or it can be artificially produced as a way to help determine what the function of that gene is. Ectopic expression of a gene can be done by introducing a transgene with a modified promoter biology promoter into the target organism transient or stable transfection or by using the GAL4 UAS system Gal4 UAS system. Ectopic expression is used to gain further understanding of the gene s functions. References DEFAULTSORT Ectopic Expression Genetics stub Category Gene expression ... more details
Integral expression may refer to Integral equation More generally, a mathematical expression involving one or more integral s Integer polynomial An algebraic expression which is not in fractional form, see algebraic fraction mathdab zh ... more details
Unreferenced date December 2009 An expression cassette is a part of a vector DNA used for cloning and Transformation genetics transformation . In each successful transformation, the expression cassette directs the cell s machinery to make RNA and protein. Some expression cassettes are designed for modular cloning of protein encoding sequences so that the same cassette can easily be altered to make different proteins. Is made up of one or more gene s and the sequences controlling their Gene expressionexpression . Three components comprise an expression cassette a Promoter biology promoter sequence, an open reading frame , and a 3 untranslated region that, in eukaryotes, usually contains a polyadenylation site. Different expression cassettes can be transformed into different organisms including bacteria, yeast, plants, and mammalian cells as long as the correct regulatory sequences are used. DEFAULTSORT Expression Cassette Category Genetics Biochem stub de Expressionskassette ... more details
Unreferenced date October 2007 Expression cloning is a technique in DNA cloning that uses expression vector s to generate a library of clones, with each clone expressing one protein. This expression library is then screened for the property of interest and clones of interest recovered for further analysis. An example would be using an expression library to isolate genes that could confer antibiotic resistance . Expression vectors Expression vectors are a specialized type of cloning vector in which the transcriptional and translational signals needed for the regulation of the gene of interest are included in the cloning vector. The transcriptional and translational signals may be synthetically created to make the expression of the gene of interest easier to regulate. Purpose Usually the ultimate aim of expression cloning is to produce large quantities of specific protein s. To this end, a bacteria l expression Clone genetics clone may include a ribosome binding site Shine Dalgarno sequence to enhance translation of the gene of interest s mRNA, a Transcription genetics transcription termination sequence, or, in eukaryotes , specific sequences to promote the Posttranslational modification post translational modification of the protein product. See also http www.ncbi.nlm.nih.gov books bv.fcgi?highlight expression,cloning&rid mcb.section.1637 1646 Molecular cell biology genetics gene expression Transcription genetics translation phage pBR322 Category Molecular genetics genetics stub ... more details
Merge to Closed form expression discuss Talk Closed form expression Proposed merger from Analytical expression date May 2011 Unreferenced date December 2009 In mathematics , an analytical expression or expression in analytical form is a mathematical expression constructed using well known operations that lend themselves readily to calculation. As is true for closed form expression s, the set of well known functions allowed can vary according to context but always includes the Arithmetic Arithmetic operations basic arithmetic operations addition, subtraction, multiplication, and division , extraction of nth root n th roots , exponentiation, logarithms, and trigonometric functions. However, the class of expressions considered to be analytical expressions tends to be wider than that for closed form expressions. In particular, special functions such as the Bessel functions and the gamma function are usually allowed, and often so are Series mathematics Infinite series infinite series and continued fraction s. On the other hand, Limit of a sequence limits in general, and integral s in particular, are typically excluded. If an analytic expression involves only the algebraic operations, which are addition, subtraction, multiplication, division and exponentiation with integral or fractional exponents hence including the extraction of n th roots , then it is more specifically referred to as an algebraic expression . math stub DEFAULTSORT Analytical Expression Category Special functions ja zh ... more details
An expression vector , otherwise known as an expression construct , is generally a plasmid that is used to introduce a specific gene into a target cell. Once the expression vector is inside the cell, the protein that is Genetic code encoded by the gene is produced by the cellular Transcription genetics transcription and Translation genetics translation machinery ribosome ribosomal complexes . The plasmid is frequently engineered to contain regulatory sequences that act as Enhancer genetics enhancer and Promoter biology promoter regions and lead to efficient transcription of the gene carried on the expression vector. ref http www.sci.sdsu.edu smaloy MicrobialGenetics topics in vitro genetics expression vectors.html sci.sdsu.edu ref The goal of a well designed expression vector is the production of large amounts of stable messenger RNA , and therefore proteins. Expression vectors are basic ... treatments of specific diseases like diabetes . After expression of the gene product, the purification ... or any other marker peptide. Expression vectors are used for molecular biology techniques such as site directed mutagenesis . Cloning vectors , which are very similar to expression vectors, involve the same ... biology gene cloning experiments need not result in the expression of a protein. Expression vectors must have expression signals such as a strong promoter, a strong termination codon, adjustment ... years, expression vectors have been used to introduce specific genes in organism s, especially plants used in agriculture . Expression vectors have been used to introduce a vitamin A precursor, beta ... since it is produced by the modified organism. In addition expression vectors are used to extend ... ref There has been controversy over using expression vectors to modify crops due to the fact that there might ... researched. e.g. baculovirus is commonly used as expression vector in insect cells. References Reflist DEFAULTSORT Expression Vector Category Molecular biology Category Biotechnology ar ... more details
The Oldsmobile Expression was a 1990 concept car concept vehicle. The Expression was a 4 door wagon that featured fiberglass exterior panels and 6 passenger 2 2 2 seating. Among other features showcased were rain sensing windshield wipers, in car vacuum cleaner , TV VCR with a Nintendo system, and unique four wheel steering. modern auto stub Oldsmobile Category Oldsmobile concept vehicles Expression ... more details
Lambda expression may refer to Anonymous function Lambda calculus Definition disambig Short pages monitor This long comment was added to the page to prevent it from being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Long comment. Please do not remove the monitor template without removing the comment as well. simple Lambda expression ... more details
Unreferenced date December 2009 In computer science , a Boolean expression is an Expression programming expression in a programming language that produces a Boolean value when evaluated, i.e. one of true or false . A Boolean expression may be composed of a combination of the Boolean constants true or false , Boolean data type Boolean typed variables, Boolean valued operators, and Boolean valued function s. Boolean operators Programmer s will often use a pipe symbol for OR, an ampersand & for AND, and a tilde for NOT. In many programming language s, these symbols stand for bitwise operation s. , && , and are used for variants of these operations. Other symbols are a for OR, a for AND, and an overscore for NOT. Examples The value for 5 3 is evaluated as true . 5 3 and 3 5 are equivalent Boolean expressions both of which would be evaluated as true . Of course, most Boolean expressions will contain at least one variable X 3 , and often more X Y . See also Expression programming Expression mathematics External links http www.maths.tcd.ie pub HistMath People Boole CalcLogic CalcLogic.html The Calculus of Logic , by George Boole, Cambridge and Dublin Mathematical Journal Vol. III 1848 , pp. 183 98. DEFAULTSORT Boolean Expression Category Boolean algebra Category Operators programming da Boolesk udtryk fr Expression bool enne programmation informatique ru ... more details
Orphan date February 2011 Heterologous expression is to gene Expression express a gene or part of a gene in a host organism , which does not naturally have this gene or gene fragment.This is mainly done in recombinant DNA technology . See also Recombinant DNA Category Biotechnology Biotech stub ... more details
Refimprove date December 2009 In computer science an overloaded expression includes an ambiguous operator programming operator expression mathematics expression that can only be understood by considering the expression s operands . See Function overloading . For example, in Java, the operator designates addition for numeric operands with implicit type conversion and concatenation for string operands. ref http docs.oracle.com javase tutorial java nutsandbolts op1.html Java operators ref Compilers can typically detect expressions with invalid combinations of operands and operators. Languages that support overloading include C , Java programming language Java , and Ada programming language Ada . Linguistics In human linguistics , many words have multiple meanings, that depend on context and usage. For example, consider the sentence They saw the wood. The word saw is an overloaded operator that could mean the past tense of to see or cutting the wood . However, in this case, the operands they and wood do not provide sufficient without context. Instances such as this complicate machine translation . Notes reflist 2 DEFAULTSORT Overloaded expression Category Operators programming Prog lang stub ... more details
Expert subject Computer science date May 2009 The Expression Problem is a term used in discussing strengths and weaknesses of various programming paradigms and programming languages . The expression problem can be treated as a use case in programming language design . ref name Reynolds cite web title User defined types and procedural data structures as complementary approaches to data abstraction url http portal.acm.org citation.cfm?id 186680 ref ref name Cook cite web title Object Oriented Programming versues Abstract Data Types url http www.cs.utexas.edu users wcook papers OOPvsADT CookOOPvsADT90.pdf ref ref name Synth cite web title Synthesizing Object Oriented and Functional Design to Promote Re Use url http citeseer.ist.psu.edu krishnamurthi98synthesizing.html ref ref name Scala0 cite web title Extensible Algebraic Datatypes with Defaults url http citeseerx.ist.psu.edu viewdoc summary?doi 10.1.1.28.6778 ref ref name Scala cite web title Independently extensible solutions to the expression ... coined the term blockquote The Expression Problem is a new name for an old problem. The goal is to define ... name Wadler cite web title The Expression Problem url http www.daimi.au.dk madst tool papers expression.txt ... a language s ability to extend its notion of an expression programming expression , and as Wadler points out in the second paragraph of his original essay, whether a language can solve the Expression Problem is a salient indicator of its capacity for expression. ref name Wadler ref The expression ... Generic Programming References reflist External links http homepages.inf.ed.ac.uk wadler papers expression expression.txt The Expression Problem by Philip Wadler . http www.uni koblenz.de laemmel paradigms1011 resources xproblem.html Lecture The Expression Problem by Ralf L mmel l. http channel9.msdn.com Shows Going Deep C9 Lectures Dr Ralf Laemmel Advanced Functional Programming The Expression Problem C9 Lectures Dr. Ralf L mmel Advanced Functional Programming The Expression Problem at Channel ... more details
In mathematics , an algebraic expression is an Expression mathematics expression that contains Variable mathematics variables and a finite number of algebraic Operation mathematics operations addition , subtraction , multiplication , division and exponentiation to a rational exponent . A rational algebraic expression or rational expression is an algebraic expression that can be written as a quotient of polynomial s, such as math x 2 2x 4 math . An irrational algebraic expression is one that is not rational, such as math sqrt x 4 math . Some but not all polynomial equation s with Rational number rational coefficients have a solution that is an algebraic expression with a finite number of operations involving just those coefficients that is, can be Algebraic solution solved algebraically . This can be done for all such equations of degree one, two, three, or four but for given n 5 it can be done for some equations but Abel Ruffini theorem not for others . References cite book last1 Morris first1 Christopher G. title Academic Press dictionary of science and technology page 74 year 1992 url http books.google.co.uk books?id nauWlPTBcjIC&lpg PA74&dq algebraic 20expression 20over 20a 20field&pg PA74 v onepage&q&f false cite book last1 James first1 Robert Clarke last2 James first2 Glenn title Mathematics dictionary page 8 year 1992 url http books.google.co.uk books?id UyIfgBIwLMQC&lpg PA8&dq algebraic 20expression 20over 20a 20field&pg PA8 v onepage&q&f false External links MathWorld title Algebraic Expression id AlgebraicExpression Category Elementary algebra ... more details
Musical expression is the art of playing music with communication. The elements of music that comprise expression include dynamic indications, forte or piano, Musical phrasing phrasing , differing qualities of touch and articulation, color, intensity, energy and excitement all at the service of the composer s intention as best perceived by the performer. A performer aims to elicit responses of sympathetic feeling in the audience, and to excite, calm or otherwise manipulate the audience s physical and emotional responses. In a great artist, one can feel that it is the soul that is speaking, in lesser artists, the ego. In non artist performances, one can sometimes sense the soul of the composer in the absence of interpretation. Expression can be closely related to breath, and the voice s natural ability to express feelings, sentiment, deep emotions. Whether these can somehow be categorized is perhaps the realm of academics, who view expression as an element of musical performance which embodies ... response in its listeners. ref London, J., http www.people.carleton.edu jlondon musical expression and mus.htm Musical Expression and Musical Meaning in Context . ref The emotional content of musical expression is distinct from the emotional content of specific sounds e.g., a startlingly loud bang ... its context. The components of musical expression continue to be the subject of extensive and unresolved dispute. ref Avison, C., 1752, http books.google.com books?id 8HmH5DJKhlwC Essay on Musical Expression ... of Expression in Pianoforte Playing ref ref Lussy, M., 1892, http books.google.com books?id its5AAAAIAAJ Musical Expression Accents, Nuances, and Tempo, in Vocal and Instrumental Music ref ref Darwin, C., 1910, http books.google.com books?id KRULAAAAIAAJ The Expression of the Emotions in Man and Animals ... Expression A Philosophical and Psychological Study ref ref Davies, S., 1994, http books.google.com books?id S5RE RxokUQC Musical Meaning and Expression ref See also Musical phrasing Tempo rubato References ... more details
In the field of compiler optimization s, available expressions is an analysis algorithm that determines for each point in the program the set of expression programming expressions that need not be recomputed. Those expressions are said to be available at such a point. To be available on a program point, the operands of the expression should not be modified on any path from the occurrence of that expression to the program point. The analysis is an example of a forward data flow analysis problem. A set of available expressions is maintained. Each statement is analysed to see whether it changes the operands of one or more available expressions. This yields sets of available expressions at the end of each basic block , known as the outset in data flow analysis terms. An expression is available at the start of a basic block if it is available at the end of each of the basic block s predecessor s. This gives a set of equations in terms of available sets, which can be solved by an iterative algorithm. Available expression analysis is used to do global common subexpression elimination CSE . If an expression is available at a point, there is no need to re evaluate it. References Aho, Sethi & Ullman Compilers Principles, Techniques, and Tools Addison Wesley Publishing Company 1986 compsci stub Category Compiler optimizations el uk ... more details
Notability Organizations date April 2009 Expression crew is a South Korean b boying crew that is famous for winning Battle of the Year 2002, making it the first ever Korean crew to win the title. The crew is also famous for its Marionette performance, a show it used to tour around the world performing. History Expression Crew was formed in 1997, by Lee Woo Sung. In 2002, the crew won Battle of the Year, becoming the first ever Korean crew to do so, also establishing South Korea in the international hip hop community. After this, Expression went on to pioneer part of the hip hop movement in South Korea. In 2003, Ducky and Hong 10, some of the top dancers in the crew, left for undisclosed reasons. Even with this event, Expression competed in Battle of the Year 2003 and won 2nd place, losing to Pockemon crew from France. In 2004, for unknown reasons, most of the members left to either form a crew ... on the website bboyworld.com and addressed the negative rumors about Expression. ref http www.bboyworld.com forum breaking discussion 17124 woosung expression crew.html ref Expression did not compete ... of Expression, including Ducky and Hong 10, formed Drifterz crew. Other former members also formed a new crew, Maximum crew. Since 2004, most of the world has hardly heard from Expression, with the general b boying community assuming that Expression had broken up. Information about the exact status of Expression is scarce, but it can be gathered that it is more of a dance troupe now, as the crew now only puts on its Marionette performance and never battles or competes anymore. Expression ... of the crew being a professional b boy production team even more reasonable. A suggested theory is that Expression ... his connections to give them a future in hip hop. Marionette performance Expression is known ... Unknown status Kandoll unknown, presumably still in Expression Mute unknown Woo Chen unknown References ... Expression Crew Category South Korean breakdancing groups ... more details
Threshold expression is a phenomenon in which phenotypic expression of a mitochondrial disease within an organ system occurs when the severity of the mutation, relative number of mutant mtDNA , and reliance of the organ system on oxidative phosphorylation combine in such a way that ATP production of the tissue falls below the level required by the tissue. The phenotype may be expressed even if the percentage of mutant mtDNA is below 50 if the mutation is severe enough. See also heteroplasmy References Marks basic medical biochemistry a clinical approach By Michael A. Lieberman, Michael Lieberman, Allan D. Marks Page 392 DEFAULTSORT Threshold Expression Category DNA Category Mitochondrial diseases biochem stub ... more details
orphan date September 2009 Wikify date September 2009 A fixed expression in English is a standard form of expression that has taken on a more specific meaning than the expression itself. It is different from a proverb in that it is used as a part of a sentence, and is the standard way of expressing a concept or idea. Examples include all of a sudden come into mind fall in line I can assure you so to speak surf the web trinomials 3 word fixed expressions e.g. lights, camera, action , signed, sealed, delivered . Category Parts of speech ling stub ... more details
Refimprove date January 2012 In mathematics, an expression is a finite combination of symbols that is well ... f u t int 0 1 frac 1 t n n frac d n 1 dt n 1 f u t , dt. math We can think of Algebraic expression algebraic ... Linear expression math 8x 5 math . Quadratic expression math 7 x 2 4x 10 math . Rational expression ... a mathematical expression but only a meaningless jumble. ref http www.mathleague.com help algebra algebra.htm Introduction to Algebra ref In algebra an expression may be used to designate a value, which might depend on values assigned to variable mathematics variable s occurring in the expression the determination of this value depends on the semantics attached to the symbols of the expression ... the meaning of expressions is not limited to designating values for instance, an expression might ... math oplus math to designate an internal direct sum . Being an expression is a syntactic ... or a bound variable . For a given combination of values for the free variables, an expression may be evaluated, although for some combinations of values of the free variables, the value of the expression may be undefined. Thus an expression represents a function mathematics function whose inputs are the value assigned the free variables and whose output is the resulting value of the expression. ref ... ref For example, the expression math x y math evaluated for x 10, y 5, will give 2 but is Division by zero undefined for y 0. The evaluation of an expression is dependent on the definition of the mathematical ..., i.e., they represent the same function. Example The expression math sum n 1 3 2nx math has free ... operator, and a summation operator. The expression is equivalent with the simpler expression 12 x ... one of the later two forms. An expression must be Well formed formula well formed . That is, the operators must have the correct number of inputs, in the correct places. The expression 2 3 is well formed the expression 2 is not, at least, not in the usual notation of arithmetic. Expressions and their evaluation ... more details
Infobox Album See Wikipedia WikiProject Albums Name Expression Cover ColtraneExpression.jpg Type studio Longtype Artist John Coltrane Released 1967 Recorded February 17, 1967 March 7, 1967 Genre Jazz Length 51 06 Label Impulse Records Impulse Producer Bob Thiele Last album Live At The Village Vanguard Again br 1967 This album Expression br 1967 Next album Album ratings rev1 Allmusic rev1Score Rating 4 5 ref Allmusic class album id r136915 ref Expression is an album by jazz saxophonist John Coltrane . The title track was Coltrane s last studio recording the rest of the album was recorded at about the same time as Interstellar Space . To Be features Coltrane on flute , the only recording he made on the instrument for an entire track. As for the rest of the album, Coltrane s tenor seems to have acquired a denser, wider sound while retaining the free form of the late years. This is most evident on Offering, which follows its theme into a particularly radical example of overblowing. Track listing small All tracks by John Coltrane small Ogunde song Ogunde 3 36 To Be 16 20 Offering 8 25 Expression 10 50 Number One 11 55 additional track on reissue Personnel John Coltrane &mdash tenor saxophone , flute Pharoah Sanders &mdash flute , piccolo , tambourine Track 2 only Alice Coltrane &mdash piano Jimmy Garrison &mdash Double bass bass Rashied Ali &mdash Drum kit drums References Reflist John Coltrane DEFAULTSORT Expression Category 1967 albums Category Impulse Records albums Category John Coltrane albums Category Albums produced by Bob Thiele Category Albums published posthumously fr Expression John Coltrane it Expression John Coltrane ... more details
A manifest expression is a programming language construct that a compiler can analyse to deduce which values it can take without having to execute the program. This information can enable compiler optimizations , in particular loop nest optimization , and parallelization through data dependency analysis. An expression is called manifest if it is computed only from outer loop counter s and constants a more formal definition is given below . When all control flow for a Control flow Loops loop or Control flow Choice condition is regulated by manifest expressions, it is called a manifest loop resp. condition . Most practical applications of manifest expressions also require the expression to be integer integral and affine transformation affine or stepwise affine in its Variable programming variables . Definition A manifest expression is a compile time computable function which depends only on compile time constants, manifest Variable programming variable references, and loop counter s of loops surrounding the expression. A manifest variable reference is itself defined as a variable reference with a single, unambiguous definition of its value, which is itself a manifest expression. The single, unambiguous definition is particularly relevant in procedural language s, where pointer analysis and or data flow analysis is required to find the expression that defines the Variable programming variable value. If several defining expressions are possible e.g. because the variable is Assignment computer science assigned in a Control flow Choice condition , the variable reference is not manifest. See also Polytope model which requires manifest loops and conditions Loop nest optimization References cite journal last Feautrier first Paul title Dataflow analysis of array and scalar references journal International Journal of Parallel Programming volume 20 issue 1 pages 23 53 publisher Springer Netherlands date February 1991 url http citeseer.ist.psu.edu 367760.html doi 10.1007 BF01407931 ... more details
Merge Unified Expression Language date October 2009 Expression Language EL is a scripting language which allows access to Java Sun Java components JavaBean s through JavaServer Pages JSP . Since JavaServer Pages JSP 2.0 JSP 2.0 , it has been used inside JavaServer Pages JSP tags to separate Java code from JSP, and to allow easier access to Java components than in Java code . Evolution of EL occurred to make scripting easier for web content designers who have little or practically no knowledge of the core Java Language. This scripting language makes JSP a scripting language in the true sense. Before EL, JSP consisted of some special tags like scriptlet s, expressions etc within which Java code was written explicitly. With EL the web content designer needs only to know how to make proper calls to core Java methods and can enjoy the true scripting flavour of a scripting language. EL is, both syntactically and semantically, similar to JavaScript expressions there is no typecasting type conversions are usually done implicitly double and single quotes are equivalent code object.property code has the same meaning as code object property code EL also liberates the programmer from having to know the particularities of how the values are actually accessed code object.property code can mean depending on what the code object code is either code object.get property code or code object.getProperty property code or code object.getProperty code etc. See also OGNL An open source expression language used by WebWork and Struts 2 . MVEL Another open source EL used in many Java based projects. External links http java.sun.com j2ee 1.4 docs tutorial doc JSPIntro7.html Java Expression Language Category Scripting languages compu lang stub fr Expression Language pt Linguagem de Express o ru Expression Language ... more details
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