harmonic mean
التعريفات والمعاني
== English ==
=== Noun ===
harmonic mean (plural harmonic means)
(mathematics) A type of measure of central tendency calculated as the reciprocal of the mean of the reciprocals, i.e.,
H
=
n
1
x
1
+
1
x
2
+
⋯
+
1
x
n
{\displaystyle H={n \over {1 \over x_{1}}+{1 \over x_{2}}+\cdots +{1 \over x_{n}}}}
.
==== Hypernyms ====
(statistics): measure of central tendency
Pythagorean mean
==== Derived terms ====
contraharmonic mean
==== Translations ====
==== See also ====
arithmetic mean
geometric mean
quadratic mean
==== References ====
Means, Meaning, and Music: Pythagoras, Archytas, and Plato by Scott Makeig, §The Tetractus of Means