And we're actually going to get a little bit deeper in our clicker questions here, since when you do your problem-set it won't be quite this straight forward that you'll be answering this kind of question, but actually you'll be thinking about how many different orbitals can have certain state functions or certain orbital names.
事实上我们要讲的,比这个问题还要深一些,因为当你们做习题集的时候,你们不会遇到这么明显的问题,而是要考虑有多少个轨道,有某种特定的态函数,或者特定的轨道名字。
because it's only by saying it and being corrected that you're going to learn.
因为只有当你讲出来,然后别人帮你纠正错误,你才会有所收获。
Because whenever I tell this story now, people start saying, " "Oh, well the evil machines are busy using your body as a battery" or whatever it was in the movie, right?
因为现在我一讲这个故事,人们就会说,“邪恶的机器忙着把你的身体当电池“,不管电影是怎样刻画的了?
That gets us to the smart thief. Why is this thief smart? Because she took 600. And she learned 600 that in fact there is a good way to solve this problem. And that's what we're going to talk about next. And that's something called dynamic programming.
现在我们要当聪明的贼,这个贼为什么聪明呢?,因为它选择了,它知道这事实上是解决这个问题的好方法,这就是我们接下来要讲的,也就是动态编程。
And when we talk about l it is a quantum number, so because it's a quantum number, we know that it can only have discreet values, it can't just be any value we want, it's very specific values.
当我们讲,l是一个量子数时,因为它是量子数,我们知道,它只能去分立的值,它不能取到所有的数,它取一些确定的数。
I want to just highlight what's in Chapter 2, because I told you we're not going to cover the details in Chapter 2 in the course, but I give it to you as a resource so that you you might have other books which describe this which you like, and you've read already and so but I'm going to assume that you understand this information to some extent.
我想强调第二章的内容,因为我告诉过你们,课堂上不会细讲第二章,但我会把它作为阅读材料给你们,你们可能已经有讲述相关内容的书,这些书你们喜欢看,并且已经看过了,我就当你们,在一定程度上理解了这些知识
Yeah. You're jumping slightly ahead of me, but basically, I'm done when this is equal to 1 right? Because I get down to the base case, so I'm done when b u is over 2 to the k is equal to 1, and you're absolutely right, that's when k is log base 2 of b.
因为这就是最基本的情况了,因此当b/2的k次方等于1的时候就停止了1,你说的太对了,就是k等于b的以2为底的对数的时候,你们都坐的挺靠后的啊,我不知道是不是我讲的不太明白?
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