Besides, by giving a Dirac eigenvalue problem example and studying the eigenvalue and eigenfunction of it and its adjoint problem, we can obtain an eigenfunction expansion theorem.
此外讨论了一个非自伴的问题,对它和它的伴随问题的特征值、特征函数进行了详细的讨论,得到了一特征展开定理。
Recent work on the problem of when people first entered the Americas is an example of the value of these new techniques.
关于人们何时首次进入美洲这一问题的最新工作就是这些新技术的价值的一个例子。
For example, if there was only one small problem with a character's family, then "family" might not be the theme of the text.
例如,如果一个角色的家庭只有一个小问题,那么“家庭”可能不是文本的主题。
We can,for example, given the rate of investment, eliminate malaria as a public health problem, we can prevent millions of more HIV infections and also in tuberculosis.
VOA: special.2010.03.10
So let's actually let you try another example of solving a problem that has to do with one of the spectrums.
下面请大家来看一下另一个例子,这次是一个需要大家解决的关于光谱的问题。
Using the example of Star Trek, Steven Pinker, in his book How the Mind Works, nicely illustrates the problem here.
用星际迷航举例,史蒂芬,朋克,在中,精细地列出了问题。
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