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<p><b>New page</b></p><div>{{Wiktionary|Variable|variable|variables}}<br />
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'''Variable''' may refer to:<br />
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== Computer science ==<br />
* [[Variable (computer science)]], a symbolic name associated with a value and whose associated value may be changed<br />
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== Mathematics ==<br />
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* [[Variable (mathematics)]], a symbol that represents a quantity in a mathematical expression, as used in many sciences<br />
* [[Propositional variable]], taking the value true or false in mathematical logic<br />
* [[Random variable]], a variable in statistics whose value depends on random events<br />
** [[Categorical variable]], taking one of a finite number of values in a statistical problem, such as the head or tail result of a tossed coin<br />
** [[Independent and identically distributed random variables]], statistically independent and having the same probability distribution<br />
* [[Fluent (mathematics)]], a time-varying quantity as coined by Isaac Newton in his early calculus<br />
* [[State variable]], used to describe the mathematical "state" of a dynamical system<br />
* [[Slack variable]], inserted to transform an inequality constraint in an optimization problem into an equality<br />
* [[Dependent and independent variables]], a variable classified according to whether or not it depends for its value on another variable of interest<br />
* [[Free variables and bound variables]], restricted or otherwise to a specified set of values, such as through a logical quantifier<br />
* Complex variable, the argument or value of a function of a complex number in [[complex analysis]]<br />
== Physical and social sciences ==<br />
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* [[Variable (research)]], a logical set of attributes<br />
* [[Control variable]], a measurable entity which is constant (controlled) and unchanged throughout the course of a scientific experiment<br />
* [[Variable star]], a type of astronomical star<br />
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== Other uses ==<br />
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* "[[The Variable]]", an episode of the television series ''[[Lost (2004 TV series)|Lost]]''<br />
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== See also ==<br />
* [[Hidden variable (disambiguation)]]<br />
* [[Variability (disambiguation)]]<br />
* [[Variance (disambiguation)]]<br />
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{{Disambiguation}}<br />
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