hartley function

Fetched 2026-10-26 (cache).

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Proper noun

1. {{lb|en|math}} A [[measure]] of [[uncertainty]]. If a [[sample]] from a [[finite]] [[set]] ''A'' uniformly at random is picked, the [[information]] revealed after the outcome is known is given by the Hartley function <math> H_0(A) := \mathrm{log}_b \vert A \vert</math>, where <math>\vert A \vert</math> denotes the [[cardinality]] of ''A''.

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