So, hopefully, if you were to go back and look you could see that this is, in fact, copper.
因此,我希望大家如果回去再看一遍,这个题目的话,能够知道这是铜原子。
And just kind of go from there and just kind of see where life takes me.
反正就是走到那一步之后再看下一步怎么走。
OK, what I would like you to see is I've been printing out, as I went along, actually let's back up slightly and look at the code. There's merge sort.
好的,我想让你们看就是我运行过后,打印出来的结果,我们再回头看一下这段代码,这就是归并排序,输入一个列表。
Now look at page 671 again on the top of the left-hand column.
现在请再看671页左边栏的最上面。
And, now let's go back to, whoops, I'm running out of space.
再看回来,很高兴啊。
PROFESSOR: All right, let's take two more seconds to look at neon then.
教授:好吧,那再看两秒。
So if we go back to the Cheetos and the cockroach and we look at our different criteria, and we ask ourselves, is it found in nature?
我们回头再看奇多和蟑螂,我们参照不同的标准,回答如下问题,它是存在于自然界的吗
If we look back at that long, open-ended list of things that were good or bad, we'll find that mos of the things on that list are instrumentally good.
再看那个长长的没有结尾的,好的或坏的东西的名单,我们会发现上面很多东西,都是有好的利用价值。
All right, well that's correct. So let's try and read that through.
正解,我们再从头到尾看一遍
Now we are going to watch it again. No?
还要再看这个吗,不?
And I say something about Citizen Kane but go beyond it, so I thought this would be a good time in your life for you to see it or see it again.
我不仅要说《公民凯恩》,还要说别的,我认为这会是你们人生中的美好时光,你们去看这个电影或者再一次看。
And if you look on 107, the first thing Sal does when he gets home is eat.
再看107页,Sal一回到家做的第一件事就是吃。
They're just sitting there, but they are listening for something we'll see in a moment.
它们一直在那里,但是正在听着什么声音,我们等会再看。
And I can imagine that when you're looking especially at women's rights.
我可以想象当你再看,尤其是女性权利的时候。
We want to do that in the simplest context, then we can make the example more and more complicated, but the phenomenon will be the same.
我们想举一个最简单的情景,随后我们可以再看一下更复杂的情况,但是万变不离其宗
Notice once again the intellectual context.
再看一次知识背景。
Okay, that's one example. Here's another.
好,这是第一个例子,再看另外一个。
It has dropped precipitously and you note that the pink line, which shows the rate of growth of home prices, the rate of growth of home prices, has fallen just right along with the traffic of homebuyers.
而且跌的很突然,再看粉色线,粉色线代表了房价增长率,房价增长率,与购房者残参观量一样下跌
OK, if you look at that then, let's look at what happened when we ran this.
好的,如果再看一下那个,让我们看一下当我们执行这里时会发生什么。
Now let me do it a second time to show you that -- I'm saying this poorly.
还不至于如此呢,现在让我再做一次给你们看。
Everyone just stare at that a second, make sure I got it right.
大家再看一看我算得对不对
Let's consider again an s orbital for argon, so let's say we're looking at the 1 s orbital for argon.
我们再考虑一次氩的s轨道,所以我们说我们在看氩的1s轨道。
We're going to start at the right and work to the left.
我们先看右边,再移向左边
All right. Let's look at this again more carefully.
我们再把这个论证更仔细地看一遍
You don't mind watch it a second time Actually I watched it many times, on DVD in particular. Did you use the DVD?
你们不介意再看第二遍吧,事实上我看了很多遍,特别是看DVD,你们看DVD吗?
Well there are a couple of interesting intermediate values here, right? There's tmp.
回去再看第一段代码,那么在这里我该关注什么呢?
Another good thing to do when you're really stuck is walk away. Take a break. Come back and look at it with fresh eyes of your own.
当你卡住的时候另外一件有益的事,就是走开休息一会儿,再回来看代码的时候你的眼睛就清醒多了。
Again, I want you to start seeing how to map the characteristics of the code- the characteristics of the algorithm, let's not call it the code-- to the complexity.
是算法中的那些特性,我们还是别说代码了,转化为复杂度-,我一会儿还会再讲点儿这个的,但是我们再看一个例子。
All right, I want to show you one last example of using recursion because we're going to come back to this. This is a classic example of using recursion. And that is dating from the 1200s and it is due to Fibonacci.
并且返回答案,我想给你看看递归的最后一个例子,因为我们还要再看一遍,这是一个递归的经典案例,它可以追溯到13世纪。
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