Mixing (mathematics) Guide, Meaning , Facts, Information and Description
In mathematics, a measure-preserving transformation T is said to be mixing if
This definition is meant to capture the notion of physical mixing. Suppose that a glass initially contains 20% rum and 80% cola in separate regions. After stirring the glass, any region of the glass contains approximately 20% rum.
Every mixing transformation is ergodic, but there are ergodic transformations which are not mixing.
The mixing of gases or liquids is a complex physical process,
governed by the Navier-Stokes equations.
It is not clear that fluid mixing processes are mixing in the mathematical sense.
Small rigid objects (such as rocks) are sometimes mixed in a rotating drum or tumbler.
The 1969 Selective Service draft lottery was carried out by mixing plastic capsules which contained a slip of paper (marked with a day of the year),
resulting in a detectable bias towards later days of the year.Physical mixing