The-definition.com

Definition

Variable

Variable is a computer programming term which refers to a named memory location (storage) which contains data or values.  The variable name is used as reference of storage value.

It is called variable because the represented values can change but the operation on the variable remains the same.

A variable is composed with a variable name and a data type. Data types determines the types of value such as integer, float, character etc. it can hold.

There are naming conventions of variable name that must be followed to compose a variable name.

Example:

int a, b c;
a=b+c;

Variable is a condition or factor, usually in an experiment, that is capable of changing or being changed.

Webster Dictionary Meaning

1. Variable
- Having the capacity of varying or changing; capable of alternation in any manner; changeable; as, variable winds or seasons; a variable quantity.
- Liable to vary; too susceptible of change; mutable; fickle; unsteady; inconstant; as, the affections of men are variable; passions are variable.
2. Variable
- That which is variable; that which varies, or is subject to change.
- 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 x2 - y2 = R2, x and y are variables.
- A shifting wind, or one that varies in force.
- Those parts of the sea where a steady wind is not expected, especially the parts between the trade-wind belts.
Share it:  Cite

More from this Section

  • Binet, Alfred (1857-1911)
    Binet, Alfred (1857-1911) is a French psychologist who was asked by the Paris school system ...
  • Truth drug
    Truth drug is a narcotic (like sodium amatol) that has the effect of causing drowsiness ...
  • Schema
    Schema is a logical description of each piece of data in the database and its relationship ...
  • reality testing
    In psychoanalysis, the ego's practical attempt to follow the reality principle is called ...
  • Stimulus discrimination
    Stimulus discrimination is the process that occurs if two stimuli are sufficiently distinct ...