root mean square


root mean square

root mean square Word Origin noun Mathematics.

  1. the square root of the arithmetic mean of the squares of the numbers in a given set of numbers. Abbreviation: rms

Origin of root mean square First recorded in 1890–95 British Dictionary definitions for root mean square root mean square noun

  1. the square root of the average of the squares of a set of numbers or quantitiesthe root mean square of 1, 2, and 4 is √[(1² + 2² + 4²)/3] = √7 Abbreviation: rms

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