All right. Then we're going to set low to-- low and high, and we're going to perform exactly the process I talked about.
不满足条件,我们就可以直接停止运行了,好,接下来我们要定义边界值,然后按照我之前。
I want to mention that 5 you're going to get problem-set five is posted today, and I'll write which ones you can already do so far, because you don't have class on Monday.
我要指出的是,今天会贴出来习题集,我会给出你们现在可以做的题目,因为周一没有课。
The banks were not technically government institutions well they're semi-government; it's kind of strange set-up.
严格来说,这些银行,不是政府机构它们是半政府机构;,它们是奇特地建立的。
So, given the set-up, you kind of feel what you're missing, you know, what this home pitch is-- the pitch to which you are gravitating.
那么,根据规律,你发现缺点了什么,基本的音高是,那个吸引你的音高
These are going to be fairly common-sense definitions, but they're important, and when you get to a problem set, really nailing down what the system is, not more, nor less, in terms of the amount of stuff, that's part of the system, it's going to be often very crucial.
这些是,很常识性的定义,但是很重要,当你要解决问题时,务必要搞清楚系统是什么,它包含多少物质,不能多也不能少,这往往,是非常重要的。
We're going to differentiate with respect to q1, the thing we're trying--our control variable, the thing we're trying to maximize the thing with respect to and set it equal to 0.
对q1求导,q1是控制变量,也就是我们想要求出的最大值,令它等于0
The other quick thing I want to say is that I do have office hours today from 3 to 5, so feel free to stop by if you have questions about problem-set 3 that you're finishing up.
我还想说一件小事,我今天的答疑时间是三点到五点,如果你对于第三次作业还有任何疑问,请在这个时间段来找我,不必客气。
So you'll notice in your problem-set, sometimes you're asked for a number of orbitals with a set of quantum numbers, sometimes you're asked for a number of electrons for a set of quantum numbers.
希望你们在做习题的时候注意到,有时候问的是拥有,一套量子数的轨道数,有时候问的是拥有一套,量子数的电子数。
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。
So, let's listen, we're not going to-- I think Lynda has it set here.
下面,大家一起听,我们不是要...,我想琳达已经设定好了
We've got some chords set out and we're going to-- we've got some chords set out here and we're in the key of C at this point, and we're going to hear Beethoven go to a tonic chord, then a sub-dominant chord, then a tonic chord, then a dominant chord and so on.
我们看到有一些和弦-,而我们现在在C调的位置上,然后听贝多芬的主音和弦,然后是次属音和弦,然后是主音和弦,接着是属音和弦,如此往复。
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