quadratic mean

English

Etymology

Quadratic in the phrase refers to the squaring on the terms.

Noun

quadratic mean (plural quadratic means)

1. (mathematics) A type of average, calculated as the square root of the mean of the squares, ie. $Q={\sqrt {x_{1}^{2}+x_{2}^{2}+...+x_{n}^{2} \over n}}$.

Synonyms

• root mean square
• RMS

Hypernyms

• (statistics): measure of central tendency
• generalized mean, power mean, Hölder mean

Translations

type of average — see root mean square

See also

• arithmetic mean
• geometric mean
• harmonic mean