熵的另外一个定义是由克劳德·艾尔伍德·香农于1948年引入。[1] （页面存档备份，存于互联网档案馆） 这一定义虽然是针对信息论提出，但可以在所有科学领域应用。当概率均匀分布时，这个定义可以还原为玻尔兹曼的定义，但只有在不同时才有实际应用意义。Its virtue is that it yields immediate results without resorting to factorials or Stirling's approximation. Similar formulas are found, however, as far back as the work of Boltzmann, and explicitly in Gibbs (see reference).
"Paul Ehrenfest (1880–1933) along with Nernst[,] Arrhenius, and Meitner must be considered among Boltzmann’s most outstanding students."—Jäger, Gustav; Nabl, Josef; Meyer, Stephan. Three Assistants on Boltzmann. Synthese. April 1999, 119 (1–2): 69–84. doi:10.1023/A:1005239104047.
熵的另外一个定义是由克劳德·艾尔伍德·香农于1948年引入。[1] （页面存档备份，存于互联网档案馆） 这一定义虽然是针对信息论提出，但可以在所有科学领域应用。当概率均匀分布时，这个定义可以还原为玻尔兹曼的定义，但只有在不同时才有实际应用意义。Its virtue is that it yields immediate results without resorting to factorials or Stirling's approximation. Similar formulas are found, however, as far back as the work of Boltzmann, and explicitly in Gibbs (see reference).
