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entropy - technical definition
- In physics, and particularly in the area of thermodynamics, a measure of the amount of energy unavailable to do work in a closed system.
- The degradation of the matter and energy in the universe to the point of inert uniformity.The dispersal of energy.
- In information theory, a measure of the content of a message evaluated with respect to its probability of occurrence, or uncertainty of occurrence, depending on your perspective.
- In communications, a measure of the randomness of signal noise occurring in transmission.
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