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, especially when vs let x be the first summation

These two phrases are not directly comparable as they serve different purposes. ", especially when" is used to emphasize a particular situation or condition, while "let x be the first summation" is a directive or instruction in a mathematical context. They are not interchangeable and are used in different contexts.

Last updated: March 15, 2024

, especially when

This phrase is correct and commonly used in English to emphasize a specific condition or situation.

This phrase is used to draw attention to a particular circumstance or condition, often to provide additional information or context.

let x be the first summation

This phrase is correct in a mathematical context when defining a variable or setting up an equation.

This phrase is used to introduce a variable or expression as the initial part of a summation or mathematical operation.

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