Variable Meaning: Definition, Examples, and Translations
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variable
[ˈvɛːrɪəb(ə)l ]
Definitions
programming
A variable is a storage location identified by a memory address where a value can be stored, retrieved, or manipulated.
Synonyms
container, identifier, placeholder.
Which Synonym Should You Choose?
| Word | Description / Examples |
|---|---|
| variable |
Commonly used in programming and mathematics to represent elements that can change value. It is a core concept in coding to store information that can be manipulated.
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| identifier |
Used to name variables, functions, classes, or any other programming entities. Identifiers are crucial for code readability and maintainability.
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| placeholder |
Often used in user interfaces or documentation to show where actual data or content will be placed. It helps in indicating the expected input or in reserving space.
|
| container |
Typically used to describe an object or device that holds multiple items or elements, both physical and abstract. In programming, it may refer to data structures like arrays, lists, or even classes that encapsulate data and functionality.
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Examples of usage
- In programming, variables are commonly used to store data such as numbers, strings, or objects.
- The value of a variable can change during the execution of a program.
- Variables are essential for controlling the flow and logic of a program.
- Programmers need to declare variables before using them in their code.
- Understanding the concept of variables is fundamental in learning how to write code effectively.
mathematics
In mathematics, a variable is a symbol (usually a letter) that represents a number or a quantity that may vary.
Synonyms
parameter, placeholder, unknown.
Which Synonym Should You Choose?
| Word | Description / Examples |
|---|---|
| variable |
Used in mathematics, statistics, computer programming, and sciences to represent a value that can change.
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| unknown |
Typically used in mathematics and statistics to represent an element that is not yet identified or determined.
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| parameter |
Commonly used in programming and mathematics to denote a limit or boundary, or in functions to represent an input that affects the output.
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| placeholder |
Used to indicate a temporary marker or space where actual data or content will be filled in later.
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Examples of usage
- In the equation 2x + 5 = 15, x is the variable that can take different values.
- Variables are used in algebra to solve equations and represent unknown values.
Translations
To see the translation, please select a language from the options available.
Interesting Facts
Science
- In science, variables are essential for experiments, helping to show how one thing can affect another.
- There are three main types of variables: independent (changed by the experimenter), dependent (measured), and controlled (kept the same).
- Statistical analysis often involves many variables to understand complex relationships in data.
Pop Culture
- In video games, a variable might be the player's health points, which change based on actions taken during gameplay.
- Television shows often have characters with fluctuating emotional states, making them more interesting and relatable.
- In popular songs, themes of love can be seen as variables that change based on the singer's experiences.
Literature
- Authors often use variable settings, like time and place, to create dynamic stories.
- Character development is frequently dependent on variable traits, showcasing growth or decline throughout the narrative.
- Poetry uses various structures and forms, making verses a variable part of creative expression.
Psychology
- In psychology, mood and behavior are considered variables influenced by a person's environment and experiences.
- Cognitive flexibility involves adjusting one's thinking based on changing circumstances, which can be seen as managing cognitive variables.
- Researchers often manipulate variables in studies to observe their effects on human behavior.
Origin of 'variable'
Main points about word origin
- The word comes from the Latin 'variabilis', which means 'changeable'.
- First recorded use in English dates back to the late 14th century, referring to something that can change.
- In mathematics, the term has been used since the 16th century to describe quantities that can vary.
The word 'variable' originated from the Latin word 'variabilis', which means 'changeable' or 'alterable'. The concept of variables has been crucial in fields like mathematics, programming, and science, allowing for flexibility and adaptability in calculations and algorithms.
See also: unvaried, unvarying, variance, varied, variety, various, variously, vary, varying, varyingly.