Difference between variable and operator

Definitions

adjective

1. marked by diversity or difference
2. liable to or capable of change
3. (used of a device) designed so that a property (as e.g. light) can be varied

noun

1. a quantity that can assume any of a set of values
2. a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity
3. a star that varies noticeably in brightness
4. something that is likely to vary; something that is subject to variation

Examples

The two variables are infant mortality per 1000 live births and gross national product per head.

Pelling's central idea is that the value of this concept is variable and its use needs care.

The variable can be accessed by this two part name within the session.

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Definitions

noun

1. someone who owns or operates a business
2. (mathematics) a symbol or function representing a mathematical operation
3. a shrewd or unscrupulous person who knows how to circumvent difficulties
4. a speculator who trades aggressively on stock or commodity markets
5. an agent that operates some apparatus or machine

Examples

The score may actually have been 32-0, but it seems the scoreboard operator could not keep up.

Firm words , air shower and broadband are three major key products of the firm net operator.

The term "strategic" came up again earlier this year, when Ontario's provincial government set up a committee to debate a proposed merger between London Stock Exchange Group PLC and TMX Group Inc., operator of Canada's flagship Toronto Stock Exchange.

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