调和平均数

返回一组正数的调和平均数：所有参数倒数均值的倒数原则上，权应该是标准误差平方的倒数。

Returns the harmonic mean of a data set of positive numbers : the reciprocal of the arithmetic mean of reciprocals In principle , weights should be 1 / ( s. e. ) 2 .

调和平均数与算术平均数的讨论

Discussion on Harmonic Mean and the Arithmetic Mean

如平均指标中的算术平均数与调和平均数H的定义基本公式可认为是一样的。

The arithmetical average in be like average index and the definition that move peace to all count H are basic and formulary like can considering as .

算术平均数、几何平均数与调和平均数之间的关系

The Relation between Arithmetic Average , Geometrical Average and Harmonic Average

基于调和平均数的组合预测方法研究

Study on the Combined Forecasting Method Based on Harmonic Means

用调和平均数方法来处理界面附近的不连续性。

Harmonic averaging method is used to deal with the discontinuity in the vicinity of the interface .

调和平均数、几何平均数和算术平均数之间存在单调非减关系，并且可将它们归结为幂平均数的一些特殊形式。

There is nondecreasing relationship among arithmetic average , geometrical average and harmonic averge . The three averages can be given by power average .

平均数理论研究的历史久远，经典的平均数包括算术平均，几何平均，调和平均等。平均数理论研究在发展过程中，建立了平均族的理论。

The research for the means has a long history , the classical means include algebraic mean , geometric mean and harmonic mean etc. During the development of theory of mean , the theory of mean family is built .