Partition function (mathematics): Difference between revisions

Revision as of 20:01, 10 July 2012

Revision as of 20:03, 10 July 2012

Line 93:

gives the average (expectation value) of ''H''. In physics, this would be called the average [[energy]] of the system.

Given the definition of the probability measure above, the exepctationexpectation value of any function ''f'' of the random variables ''X'' may now be written as expected: so, for discrete-valued ''X'', one writes

:<math>\begin{align}

\langle f\rangle