Charlie. I've got this one, Jackie.
VOA: standard.other
So now I've got this gamma placed in there, -1 gamma minus 1, so I've ben feeling a little bit better.
这样我把这里的指数,换成γ,这样看起来舒服一些。
Seventeen against thirty, twenty-four against thirty And by this stage I've got nothing the rest of that list in.
这个列表中已没有任何元素了,那么我可以将那个列表里剩下的元素,添加进去。
How many people vote for that this is a reversible process? I've got one vote back there two votes, three votes, four votes. Anybody else?
有多少人认为,这是一个可逆过程?有一个,两个,三个,四个,还有别的人吗?
If I'm going to make insulin from this I have to know that I've got the introns spliced out correctly.
如果我要用这些来生成胰岛素,我就得知道是不是把内含子都准确剔除了
Sometimes it was spiritualized. In this sense, this is why I put this quote up on the board from On the Road: "We've got to go someplace, find something."
有时候这是精神化的,从这个意义上去理解,所以我把《在路上》里的这句话写在黑板上:,我们必须去到某个地方,发现某些东西“
Then, you've got to say, "What do I have to know about this object at the initial time?
然后,也许你会问,我需要知道物体初始状态的哪些信息呢
So, I've got this tiny volume with, in the case of gold 79 plus of charge, and I've got some electrons out here somewhere, and the vast majority of the atom is nothing.
我认为这个小体积里面,比如金的79个正电荷,电子在外面的某些地方,原子里面大部分是空心的。
I think there's this Golden Calf foremost, "I've got to be successful."
我觉得,“金钱至上“风行,“我一定得成功“
And I've got to tell you, to this day there's a debate in the philosophical community about whether or not this argument works.
我已经告诉过你们,现今哲学界依旧在争论,到底这个论证是否正确
Okay. So here we're going to go-- The gentleman in the orange shirt-- I hate to do this to you but we've got thirty seconds.
好的,接下来我们要,那个穿橙色衣服的先生,我不想这么对你,不过我们只有三十秒了
This will be here; this will be... I've got to be a bit more careful.
一个点在这里,这个点呢,我有点没画好
This is one of the biggest classes at Yale, but I think we've got it so it will be a good and satisfying experience with you.
我们是耶鲁人数最多的班级之一,但我想我们会让这门课,成为一次美好和令你们满意的经历
Oh, I've got to put this thing down. That's it.
哦,我忘了把屏幕放下来,好了
So I've got one more piece of bad code on this point and this is buggy five dot c. So as a comment on top bug of this file challenges, what is, in fact, the bug.
所以我在这里得到了一块很烂的代码,这个是buggy5,c,所以作为这个文件顶端的注释,那实际上是那个。
All right. I want to do one more extended example here., because we've got another piece to do, but I want to capture this, because it's important, so let me again try and say it the following way.
很好的问题,谢谢你,我还要带大家去看一个延伸的例子,尽管我们还有别的事情要去做,但是我还是想提提这一点,因为这很重要。
OK. Having done this now, I can simply go ahead and run this, and in fact if I go up here to run, you'll see I've got both an option to check the module, though in this case I'm just going to run it.
好,讲完了这些,我可以去执行程序了,实际上如果我在这里运行,你们会看到我同样得到了,一个可以同时检查模块的选项,虽然在这个例子中我就是直接去运行程序了。
So I've got, this piston here is compressed, and I slowly, slowly increase the volume, drop the temperature.
这样,这个活塞就被压缩了,然后我再很慢很慢地增加它的体积,降低温度。
OK. What order of growth? What's complexity of this? I've got to get rid of this candy.
那么增长率怎么样呢,复杂度呢?我想发个糖果了。
How do I know when I've got this one or this one?
我怎么知道我找到的是什么细胞呢
Kaj, the head TA is Scandinavian so I've got no idea why he's supporting Liverpool anyway, but I think maybe he spells it like this or something like this.
主助教卡茄是斯堪的纳维亚人,我也很好奇为什么他要支持利物浦队,不过我猜大概他大概这么拼写利物浦
As we come back in to this, I think we've got a situation where the piano keeps playing the four-note motive, the part like he was building it up for tension.
回到这里,我想情况是这样的,钢琴一直弹奏着四音节的动机,这个部分像是钢琴在制造紧张气氛
Suppose somebody said, "Yeah, it's true if I thought about the nature of death, the fact that the 50, 80, 90 years I've got on this Earth is all I'm going to have.
假设有人说,“没错如果我考虑了死亡的本质,我还有50,80,90年存活于世,我还有这么多年可活这个事实。
But no one dared say we have this little planetary model, I've got an electron orbiting a central nucleus and I am going to endow that electron with quantized states That was a big leap and that was Bohr in postulate five Postulate five I am just going to reproduce.
但是没有人敢说,我们拥有了这个小行星模型,知道了电子绕原子核运行,现在就要让它使电子处于量化的状态,假设五中波尔的成就是一个跳跃式的进步,假设五中我只需要重申一些东西。
Well,that's going to inflate the numbers too because the only managers that kind of raise their hand and say, hey I've got this interesting new approach to managing domestic equities--or whatever the asset class is -are the ones that have succeeded.
当然是会让指数起点偏高,因为经理人倾向于提供那些,举手说找到有趣的新方法,来管理国内股权投资,或其他投资的,成功的历史数据
What I mean by that is, pick a simple set of values, and let's walk through it to see what happens. And this is useful because it's going to allow me to A make sure that I've got something that's going to terminate, it's going to let me make sure that in fact I'm doing the right kinds of updates.
原因你们知道的,好,模拟代码,我的意思就是,选出一系列的值来,然后模拟下代码的执行来看看结果,这很有用因为这让我确保我的程序在某个地方,可以终止,还会让我确保实际上我。
All right? A linear search, I start at the beginning of the list and walk all the way through it. All right, if I'm lucky and it's at the low end, If it's not, if it's at the far end, I've got to go forever, and you saw that last time where this thing paused for a little while while it actually searched a list this big.
如果很幸运就在开头,那运行起来很快,如果是在末尾,那就一直得走到头,上次看到了,如果搜索空间很大,程序都会暂停一会,好的,那我希望你们。
Well I have to go to the zero-th element, and say OK, gee, to get to the next element, I've got to jump this here. And to get to the next element, I've got to jump to here, and to get to the next element, I've got to jump to here, until I get there.
再回到第0个元素,好的,然后找下一个元素,跳转到这里,然后再下一个元素,跳到了这里,然后再下一个元素,直到我找到那个元素,这样,我有方法来保存变长的元素。
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。
And the thing I wanted point out is, we've got this global variable number of calls. Which is there not because Fibonacci needs it but just for pedagogical reasons, so that we can keep track of how much work this thing is doing.
要指出的是我们已经,调用了几次这个全局变量,这不是因为斐波那契数列,需要调用它而只是,因为教学上的需要,以便我们可以知道,这个函数做了多少事情。
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