Definitions from Wiktionary (contraharmonic mean)
▸ noun: (mathematics) A type of average calculated as the arithmetic mean of the squares of the values divided by the arithmetic mean of the values, ie. 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
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▸ noun: (mathematics) A type of average calculated as the arithmetic mean of the squares of the values divided by the arithmetic mean of the values, ie. 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
Similar:
harmonic mean,
average,
mean square,
quadratic mean,
mean,
arithmetic average,
arithmetic mean,
arithmetic-geometric mean,
geometric mean,
weighted average,
more...
Opposite:
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