Again. Basic premise of binary search, or at least we set it up was, imagine I have a sorted list of elements. We get, in a second, to how we're going to get them sorted, and I want to know, is a particular element in that list..
好,二分查找的基本前提,或者是我们建立二分查找的基础,我们已经有了一个排好序的元素列表,我们就需要知道如何来快速的排序,如何从列表中找到特定的元素。
And trying get them really set in your mind.
然后努力在脑袋里把它们记下来。
One hour of recitation a week, on Fridays, and we'll come back in a second to how you're going to get set up for that.
周五是每周一小时的复习课,一会儿我们来说,怎么去准备那个课。
I want to flip back to text for a moment before I return to talk about a whole contradictory set of methodologies, or methodologies that pull in another direction. But first I want to get us up to the patriarchs and matriarchs where we're going to be starting off on Monday.
回到谈论一整套相互冲突,截然相反的,研究方法之前,我想跳回到经文部分,首先,我希望你们关注一下宗教创始人的部分,这点我们会在周一开始讨论。
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。
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。
So if you get the CD set, not only do you get a wonderful beginning library of classical music but in effect you get a lifetime service contract with it.
所以一旦你买了整套CD,你不仅可以拥有一个古典乐图书馆,而且还可以享受终身服务
I did it in 1925, but I've got it set up so that I will pay a hundred pounds in 1926 and I'll get this in 1927.
在25年进行投资操作,并通过安排,在26年投资一百英镑后,于27年收回以上回报
I stress it in particular because I know you're all going to get into this stage; you've got a problem set due in a couple of hours, you're still writing the code, you don't want to waste time, and I'm going to use quotes on "waste time", doing those extra things to do the defensive programming, you just want to get the darn thing done.
我特别强调了这一点,因为我知道你们都会慢慢成为程序员;,你在写代码过程中造成了一系列的错误,你还在写代码,你不想浪费时间,我想把“浪费时间“用引号圈起来,浪费时间来做因为防卫性程序设计,而带来的这些额外的事情,你只想赶紧把程序写完,这不是一个好习惯,因为当你做完回头。
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