The harmonic mean
of points (where , ..., ) is

(1) |

(2) |

(3) |

Hoehn and Niven (1985) show that

(4) |

**References**

Abramowitz, M. and Stegun, C. A. (Eds.).
*Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing.*
New York: Dover, p. 10, 1972.

Hoehn, L. and Niven, I. ``Averages on the Move.'' *Math. Mag.* **58**, 151-156, 1985.

© 1996-9

1999-05-25