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Entropy wikipedia

entropy wikipedia

In information theory, the cross entropy between two probability distributions p {\ displaystyle p} p and q {\displaystyle q} q over the same underlying set of events.
Additional relevant articles may be found in the following categories: Thermodynamic entropy · Entropy and information · Quantum mechanical entropy · Entropy.
Entropy is an important concept in the branch of science known as thermodynamics. The idea of "irreversibility" is central to the understanding of entropy. entropy wikipedia A refrigerator that works by stretching rubber bands
Main page Contents Featured content Current events Random article Donate to Wikipedia Wikipedia store. The entropy of how to make real money online today thermodynamic system is a measure of how far the equalization has progressed. The recurrence theorem may be perceived as apparently contradicting the second law of thermodynamics. As a practical code, this corresponds to assigning each book a unique identifier entropy wikipedia using it in place of the text of the book whenever one wants to refer to the book. It entropy wikipedia defined as the Kullback—Leibler divergence from the distribution to a reference measure m as follows. It is also, remarkably, a fundamental and very useful function of state.