equal sign
Definition
Noun: A mathematical symbol (=) used to indicate that the values, expressions, or quantities on its left and right sides are equivalent or identical.
Usage
The equal sign is used in mathematics, logic, programming, and general writing to denote equality. - It is placed between two expressions to form an equation. - In programming and logic, it can have specific, context-dependent meanings (e.g., assignment vs. comparison).
Examples
- Basic Mathematics:
- The equation "2 + 3 = 5" uses an equal sign.
- In the formula for the area of a rectangle, we write "A = l × w".
- General Statement:
- She drew an equal sign between the two concepts to show they were the same.
Advanced Usage
- In Programming: The symbol is often used as an (e.g., means "assign the value 5 to x"), while is typically used as a to check equality.
- In Python, you use a double equal sign (==) to check if two values are equal.
- In Logic and Formal Writing: Can represent a definition or an identity.
- The statement "let x = 10" defines the variable.
Variants and Related Words
- Equality (n): The state of being equal.
- Equation (n): A statement that two expressions are equal, connected by an equal sign.
- Equivalence (n): The condition of being equivalent or interchangeable.
Synonyms
- Equals sign (n): A common alternative name.
- Equality symbol (n).
Related Phrases/Idioms
- To put an equal sign between (two things): To consider two different things as being the same or equivalent.
- You can't just put an equal sign between hard work and success; luck also plays a role.
Noun
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a sign indicating that the quantities on either side are equal
