The difference between Quadratic mean and Root mean square

When used as nouns, quadratic mean means 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 }, whereas root mean square means the square root of the arithmetic mean of the squares.


check bellow for the other definitions of Quadratic mean and Root mean square

  1. Quadratic mean as a noun (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 }.

  1. Root mean square as a noun (mathematics, of a set of numbers or values):

    The square root of the arithmetic mean of the squares.