He says,for now,it is a matter of getting them into the program, not where they might go when the graduate.
VOA: standard.2009.05.06
And all this is, is saying that when you take a mixed second derivative, it doesn't matter in which order you take the two derivatives.
麦克斯韦关系的本质是,当你考虑混合的二阶导数时,求导的顺序不影响最后的结果,现在,我们利用这些关系。
When I said that questions are important and answers matter less, I am not coming from a point of relativism.
当我说问题重要而答案没那么重要时,我不是从相对论的观点来说的。
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