Harmonic mean definition

Harmonic mean

Topics Harmonic mean Definition

WordNet

(1) The mean of n numbers expressed as the reciprocal of the arithmetic mean of the reciprocals of the numbers

WiktionaryText

A type of measure of central tendency calculated as the reciprocal of the mean of the reciprocals, ie, $H = { n \over {1 \over x_1} + {1 \over x_2} + \cdots {1 \over x_n} }$