Variable

# Variable

Discussion

Encyclopedia
Variable may refer to:
• Variable (research), a logical set of attributes
• Variable (mathematics)
Variable (mathematics)
In mathematics, a variable is a value that may change within the scope of a given problem or set of operations. In contrast, a constant is a value that remains unchanged, though often unknown or undetermined. The concepts of constants and variables are fundamental to many areas of mathematics and...

, a symbol that represents a quantity in an algebraic expression.
• Variable (computer science), a symbolic name associated with a value and whose associated value may be changed
• Variable star
Variable star
A star is classified as variable if its apparent magnitude as seen from Earth changes over time, whether the changes are due to variations in the star's actual luminosity, or to variations in the amount of the star's light that is blocked from reaching Earth...

, a type of star (as in astronomical object)
• Dependent and independent variables
Dependent and independent variables
The terms "dependent variable" and "independent variable" are used in similar but subtly different ways in mathematics and statistics as part of the standard terminology in those subjects...

in statistics