Variable
Variable In computer science and mathematics, a variable is a symbol denoting a quantity or symbolic representation. In mathematics, a variable often represents an unknown quantity; in computer ... as biology, chemistry, and physics, the word variable is used to refer to a measurable ... measured and collected as data. An independent variable is presumed to affect a dependent ...
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Variable (Psychology wiki)
Variable Home Support Help Site Support Orientation Background ... course In computer science and mathematics, a variable is a symbol denoting a quantity or symbolic representation. In mathematics, a variable often represents an unknown quantity; in computer ... as biology, chemistry, and physics, the word variable is used to refer to a measurable ... measured and collected as data. An independent variable is presumed to affect a dependent ...
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Talk:Variable
Talk:Variable I made some changes to the "Names ... science) article. Changed the section name to "variable names". -- Eelis 01:17, 2005 May 23 ... too much on somehow irrelevant topics like scoping. There is an article about scope so ... Objects that are not realized by any variable could exist and can be reclamied or ... they relate to the lifetime of a variable, which may exceed its scope or ...
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Talk:Scope (programming)
... fixes I rewrote the part on static scoping. It contained many factual errors. Functions deeper ... I've also merged static and dynamic scoping into this article (I've reused some ... the article is about static versus dynamic scoping (of names) seems to contradict your claim ... I do claim that static and dynamic scoping use "scoping" in a very narrow sense. Static ...
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Scope (programming)
... scopes. See variables (scope and extent). Different scoping types affect how local variables are bound, see static versus dynamic scoping. Programmers often indent scopes in their source ... Note that this example merely illustrates basic scoping ideas, it is not meant as a ... C++ scopes can contain.) Static versus dynamic scoping One of the basic reasons for scoping is to keep variables in different ...
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Talk:Call stack
... structure that manages several things: Storage for lexical variable containers Control flow management, especially the BSR ... for running high level langauges, two fundamental scoping principals must be understood The Lexical Scope Lexical scoping has to do with the ...
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Closure (computer science)
... that refers to free variables in its lexical context. A closure is a function created ... code of a function with a special lexical environment bound to that function (scope). Closure lexical variables differ from global variables in that they do not occupy the global variable namespace. They differ from object oriented object ... plus a representation of the function's lexical environment (i.e., the set of ...
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Talk:Closure (computer science)
... braces, that serves as it's own variable scope. In Damian Conway's Object Oriented ... explanation that just conveys the idea of lexical scope capture. I used ML, which has ... the relevant variables in the function's lexical environment at the time of binding", this ... function and a pointer to the actual lexical environment (activation record) at the point of ... and is not necessary for a local variable to be used in an anonymous ...
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Lisp programming language
... than an aggregate of linked conses. A variable which refers to a given list is ... symbol evaluates to the value of the variable it names; (+ 2 3) evaluates to 5 ... get back the value of the corresponding variable (or an error, if there is no such variable). If you wish to refer to the ... comma and comma-at operators. If the variable snue has the value (bar baz) ...
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Emacs Lisp
... Chiefly, Emacs Lisp uses dynamic rather than lexical scope. That is, variables bound in a ... Emacs Lisp uses dynamic, not static (or lexical), scope. If a variable is declared within the scope of a ... greater flexibility for user customizations. However, dynamic scoping has several disadvantages. Firstly, it can easily ... different function. Secondly, accessing variables under dynamic scoping is generally slower than under lexical ...
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