− | 成立。另一边,P中所有行向量的平均向量的熵也有一个不等式成立,
| + | Established. On the other hand, there is also an inequality that holds for the entropy of the average vector of all row vectors in P, |
− | 当这两个式子的等号同时成立时,即<math>P_i</math>为独热向量,同时<math>\bar{P}</math>为均匀分布时(此时必然要求[math]P_i[/math]彼此垂直,也就是P是一个[[排列置换矩阵]]),EI会达到最大值:
| + | When the equal sign of these two equations holds simultaneously, that is, when <math>P_i</math> is a solitary heat vector and <math>\bar{P}</math> is uniformly distributed (at this time, it is necessary to require [math]P_i[/math] to be perpendicular to each other, that is, P is a permutation matrix) — EI reaches its maximum value of: |