The idiom "back-of-the-envelope calculation" originates from a common practice in which people perform quick calculations or estimations on the back of an envelope or a scrap of paper when they don't have access to a calculator or formal tools. This practice is often associated with simplicity, informality, and rough estimations. This idiomatic phrase is used to describe a rough, simplified, or quick estimation or calculation, typically done without using precise data or detailed analysis.

What is the origin of the idiom "back-of-the-envelope calculation" and when to use it?

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back-of-the-envelope calculation

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Définition et signification de « back-of-the-envelope calculation » en anglais

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