Definitions for root mean square
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root mean square(Noun)
The square root of the arithmetic mean of the squares.
Root mean square
In mathematics, the root mean square, also known as the quadratic mean, is a statistical measure of the magnitude of a varying quantity. It is especially useful when variates are positive and negative, e.g., sinusoids. RMS is used in various fields, including electrical engineering. It can be calculated for a series of discrete values or for a continuously varying function. Its name comes from its definition as the square root of the mean of the squares of the values. It is a special case of the generalized mean with the exponent p = 2.
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"root mean square." Definitions.net. STANDS4 LLC, 2016. Web. 8 Feb. 2016. <http://www.definitions.net/definition/root mean square>.