Variables: meaning, definitions and examples

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variables

 

[หˆvษ›หrษชษ™b(ษ™)l ]

Definition

Context #1 | Noun

computer programming

Variables are symbols or names that represent a value in a program. They can hold different types of data and their values can change during the execution of the program.

Synonyms

identifiers, placeholders, symbols.

Which Synonym Should You Choose?

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Word Description / Examples
variables

Used in mathematics and programming to represent values that can change. Commonly found in equations, functions, and algorithms.

  • In the equation y = mx + b, both x and y are variables.
  • You need to declare variables before using them in a program.
placeholders

Used in various contexts such as templates, forms, and programming to temporarily hold a place for a variable or value that will be specified later. Can also be found in printed documents and graphical design.

  • In a template, {name} is a placeholder that will be replaced with the actual name.
  • Use underscores as placeholders until you find the actual data.
identifiers

Used primarily in programming to name elements such as variables, functions, classes, etc. Must follow specific naming conventions in different programming languages.

  • The identifier 'myVar' is used to store the value.
  • Good identifiers are descriptive and make code easier to understand.
symbols

Can refer to a variety of representations including special characters in mathematics, notation in programming, and icons in graphical interfaces. Often used to represent operations, functions, or other specific meanings.

  • In mathematics, ฯ€ is a symbol representing the number pi.
  • In some programming languages, the $ symbol is used to denote variables.

Examples of usage

  • Before using a variable in a program, it needs to be declared and assigned a value.
  • Variables are essential in programming as they allow for dynamic storage and manipulation of data.

Interesting Facts

Mathematics

  • In math, variables are often represented by letters, like 'x' or 'y', to represent unknown numbers.
  • They enable equations to describe relationships between quantities, helping to solve problems and make predictions.

Programming

  • In computer programming, variables store information that can change as a program runs, like the score in a game.
  • Naming conventions for variables, such as 'camelCase' or 'snake_case', help make code clearer and more organized.

Science

  • In scientific experiments, variables can be dependent, independent, or controlled, helping to understand how changes affect outcomes.
  • By manipulating variables, scientists can discover cause-and-effect relationships in their research.

Psychology

  • Variables help psychologists measure behaviors and thoughts, like how different situations affect mood or stress levels.
  • Understanding variables can assist in formulating effective therapies by identifying what factors influence mental health.

Economics

  • In economics, variables such as supply and demand help explain market behaviors and how prices fluctuate.
  • Economic models often rely on multiple variables to predict future trends and inform policy decisions.

Translations

Translations of the word "variables" in other languages:

๐Ÿ‡ต๐Ÿ‡น variรกveis

๐Ÿ‡ฎ๐Ÿ‡ณ เคšเคฐ

๐Ÿ‡ฉ๐Ÿ‡ช Variablen

๐Ÿ‡ฎ๐Ÿ‡ฉ variabel

๐Ÿ‡บ๐Ÿ‡ฆ ะทะผั–ะฝะฝั–

๐Ÿ‡ต๐Ÿ‡ฑ zmienne

๐Ÿ‡ฏ๐Ÿ‡ต ๅค‰ๆ•ฐ (ใธใ‚“ใ™ใ†)

๐Ÿ‡ซ๐Ÿ‡ท variables

๐Ÿ‡ช๐Ÿ‡ธ variables

๐Ÿ‡น๐Ÿ‡ท deฤŸiลŸkenler

๐Ÿ‡ฐ๐Ÿ‡ท ๋ณ€์ˆ˜ (byeonsu)

๐Ÿ‡ธ๐Ÿ‡ฆ ู…ุชุบูŠุฑุงุช

๐Ÿ‡จ๐Ÿ‡ฟ promฤ›nnรฉ

๐Ÿ‡ธ๐Ÿ‡ฐ premennรฉ

๐Ÿ‡จ๐Ÿ‡ณ ๅ˜้‡ (biร nliร ng)

๐Ÿ‡ธ๐Ÿ‡ฎ spremenljivke

๐Ÿ‡ฎ๐Ÿ‡ธ breytur

๐Ÿ‡ฐ๐Ÿ‡ฟ ะฐะนะฝั‹ะผะฐะปั‹ะปะฐั€

๐Ÿ‡ฌ๐Ÿ‡ช แƒชแƒ•แƒšแƒแƒ“แƒ”แƒ‘แƒ˜

๐Ÿ‡ฆ๐Ÿ‡ฟ dษ™yiลŸษ™nlษ™r

๐Ÿ‡ฒ๐Ÿ‡ฝ variables

Word Frequency Rank

This word ranks #1,988, placing it within important intermediate vocabulary. Learning it will significantly improve your ability to express yourself in English.