Difference between revisions of "Root-mean-square"
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It is so-named because it is the square root of the mean of the squares of the <math>x_i</math>. | It is so-named because it is the square root of the mean of the squares of the <math>x_i</math>. | ||
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| + | It is also part of the well-known [[Root-Mean Square-Arithmetic Mean-Geometric Mean-Harmonic mean Inequality]] | ||
== See Also == | == See Also == | ||
Latest revision as of 12:41, 8 May 2013
The root-mean-square or quadratic mean of a collection of real numbers 
is defined to be 
. This is the second power mean of the 
.
It is so-named because it is the square root of the mean of the squares of the .
It is also part of the well-known Root-Mean Square-Arithmetic Mean-Geometric Mean-Harmonic mean Inequality
See Also
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