Difference between revisions of "Root-mean-square"
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− | The '''root-mean square''' | + | The '''root-mean square''' or ''quadratic mean'' of a collection of [[real number]]s <math>x_1,\dots , x_n</math> is defined to be <math>\sqrt{\frac{x^2_1+x^2_2+\dots+x^2_n}{n}}</math>. This is the second [[power mean]] of the <math>x_i</math>. |
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+ | == See Also == | ||
+ | * [[RMS-AM-GM-HM]] [[inequality]] | ||
+ | * [[Power Mean Inequality]] | ||
+ | |||
+ | {{stub}} |
Revision as of 20:03, 16 July 2007
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
.
See Also
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