# Definition of Variable. Meaning of Variable. Synonyms of Variable

Here you will find one or more explanations in English for the word Variable. Also in the bottom left of the page several parts of wikipedia pages related to the word Variable and, of course, Variable synonyms and on the right images related to the word Variable.

## Definition of Variable

Variable
Variable Va"ri*a*ble, n. 1. That which is variable; that which varies, or is subject to change. 2. (Math.) A quantity which may increase or decrease; a quantity which admits of an infinite number of values in the same expression; a variable quantity; as, in the equation x^2 - y^2 = R^2, x and y are variables. 3. (Naut.) (a) A shifting wind, or one that varies in force. (b) pl. Those parts of the sea where a steady wind is not expected, especially the parts between the trade-wind belts. Independent variable (Math.), that one of two or more variables, connected with each other in any way whatever, to which changes are supposed to be given at will. Thus, in the equation x^2 - y^2 = R^2, if arbitrary changes are supposed to be given to x, then x is the independent variable, and y is called a function of x. There may be two or more independent variables in an equation or problem. Cf. Dependent variable, under Dependent.
Variable
Variable Va"ri*a*ble, a. [L. variabilis: cf. F. variable.] 1. Having the capacity of varying or changing; capable of alternation in any manner; changeable; as, variable winds or seasons; a variable quantity. 2. Liable to vary; too susceptible of change; mutable; fickle; unsteady; inconstant; as, the affections of men are variable; passions are variable. Lest that thy love prove likewise variable. --Shak. His heart, I know, how variable and vain! --Milton. Variable exhaust (Steam Eng.), a blast pipe with an adjustable opening. Variable quantity (Math.), a variable. Variable stars (Astron.), fixed stars which vary in their brightness, usually in more or less uniform periods.

## Meaning of Variable from wikipedia

- Variable may refer to: Variable (computer science), a symbolic name ****ociated with a value and whose ****ociated value may be changed Variable (mathematics)...
- A random variable (also called random quantity, aleatory variable, or stochastic variable) is a mathematical formalization of a quantity or object which...
- formal languages, including mathematical logic and computer science, a free variable is a notation (symbol) that specifies places in an expression where substitution...
- In statistics, a categorical variable (also called qualitative variable) is a variable that can take on one of a limited, and usually fixed, number of...
- PATH is an environment variable on Unix-like operating systems, DOS, OS/2, and Microsoft Windows, specifying a set of directories where executable programs...
- A variable capacitor is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically. Variable capacitors are...
- A variable star is a star whose brightness as seen from Earth (its apparent magnitude) fluctuates. This variation may be caused by a change in emitted...
- In mathematics, a variable (from Latin variabilis, "changeable") is a symbol and placeholder for (historically) a quantity that may change, or (nowadays)...
- In computer programming, a variable is an abstract storage location paired with an ****ociated symbolic name, which contains some known or unknown quantity...
- An environment variable is a dynamic-named value that can affect the way running processes will behave on a computer. They are part of the environment...