English Explanatory Dictionary

contraharmonic mean

English dictionary entry

Meanings

noun
  1. A type of average calculated as the arithmetic mean of the squares of the values divided by the arithmetic mean of the values, i.e. C=(x_1²+x_2²+...+x_n²)/n/(x_1+x_2+...+x_n)/norC(x_1,x_2,...,x_n)=x_1²+x_2²+...+x_n²/x_1+x_2+...+x_n

Word forms

contraharmonic mean contraharmonic means

Etymology

The contraharmonic mean of two variables is at the same distance from their arithmetic mean as their harmonic mean but on the opposite side.

Related words

arithmetic mean centroidal mean harmonic mean heronian mean geometric mean quadratic mean
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