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It could be, preconditions I want to have on input It could be, explanations of specific things you're doing.
也可以是我对输入的预期是什么,也可以是，对代码,正在进行的特定操作的解释。
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But I mean... it's scary. It does its job.
但是同时我也觉得很恐怖。这部电影达到了预期的恐怖效果。
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So something has happened there that wasn't what I expected. Who wants to tell me what that bug is? Yeah?
我已经知道哪一句声明出问题了,一些和我预期不同的事情发生了,有人能告诉我bug在哪儿么？
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And let's start by considering my payoffs on this picture, just to help myself a bit, let me put some points in here.
我们从在图上表示预期收益开始,稍微等我一下,我先标注出来几个点
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Actually, I often take a little bit longer than I anticipated.
实际上，我花的时间常常要比我预期的长。
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I've gone on longer than I expected.
我说的比预期中的要久一些。
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Now I think that one thing Ricoeur leaves out, and something that we can anticipate as becoming more and more important for literary theory and other kinds of theory in the twenty-first century, is Darwin.
我想利科所遗漏的，也是我们预期对于,二十一世纪的文学理论和其他理论越来越重要的，是达尔文的理论。
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I'm going to drop more than the independence assumption, I'm going to assume that the assets don't have the same expected return and they don't have the same expected variance.
我还想做出一些改动，即这些资产的预期收益率,是各不相同的,方差也是不同的。
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I culled int and as promised, it's going to yell at me by saying "retry."
我不用int数，正如预期的那样，它开始对我大叫,并且说“重试“
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so let's say I'm anticipating making 5 dollars, and Brian anticipating making 5 dollars.
比如我预期会赚5块钱，布莱恩也预期自己会赚5块钱。
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I'm going to try and predict what the value is going to be. And then see if, indeed, I get what I predicted.
我会去预测结果值应该是怎么样的,并去看看它是不是，跟我预期的相同。
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So it should be something like one, a, two.
因此我已经有了预期的正确答案。
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So, for example, at an annual expected return of 12% if I have a portfolio of stocks, bonds, and oil I can get a standard deviation of something like 8% on my portfolio.
例如，在年预期收益12%的情况下%,我有股票，债券和石油的投资组合,在这个组合里,我的投资组合可以取到8%的标准差。
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And we already know if I look at the probability of a ?, which is here, that the payoff I get from choosing, the expected payoff I get from choosing up against a is 2.5.
我们已经计算过了概率是?的情况,即在对手概率是的情况下,我选择上我从中获得的,预期收益是2.5
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So the exceptions are useful when you want to have the ability to say, I expect in general this kind of behavior, but I do know there are some other things that might happen and here's what I'd like to do in each one of those cases. But I do want to make sure that I don't let a value that I'm not expecting pass through.
所以当你希望有能力说,我希望一般是这样的行为,异常是很有用的,但是我明白还有一些其它的情况可能发生,我希望对每一种情况都这么做,但是我跟希望能保证,没有让一个预期之外的情况漏过去。
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What I suggest we do is we do what we did last time and we start to draw a picture to figure out what my expected payoff is, depending on what I believe the goalie is going to do.
我建议用上次的方法,作图来表示在我对门将的策略,存在某种信念下,我的预期收益
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So, summarizing better, assert is something you put in to say to the user, make sure you're giving me input of this type, but I'm going to guarantee you the rest of the code works correctly. Exceptions and exception handlers are saying, here are the odd cases that I might see and here's what I'd like to do in those cases in order to try and be able to deal with them.
所以更好的总结下,断言就是你放在那里告诉用户,保证你输入的是这种类型的,但我能保证剩下的代码运行正确,异常和异常处理做的事,这里有些我能预期的异常情况,并且这里有些情况,我能尝试处理。
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Well some things I can actually expect may happen and I want to handle them.
我能预期的一些事情可能会发生,我希望能处理他们。
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What about my expected payoff from choosing Middle against , so in this case where I think it's equally likely that my opponents going to choose Left or Right?
那我在情况下,选中的预期收益是什么呢,在此情况下我依然认为,对手选左选右的可能性相同
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Let's start by plotting my expected payoff from choosing the strategy Up.
我先把选上的预期收益,标注出来
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How about my expected payoff from choosing Down versus ?
那在情况下我选下的预期收益呢
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So what we're going to look at is the expected payoff of Up versus, let me call it a : a being equally likely that my opponent chooses Left and Right.
所以接下来我们看看在我认为对手,选择左右的可能性相同下的预期收益,我们把它称为
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And again, if I just run this, just to show that it's going to do the right thing, it says enter base, I'm obnoxious, it says oops, wasn't a float, so we'll be nice about it and I enter a height, and it prints out what I expected. I just concatenated those strings together, by the way, at the end.
我再来运行下看是不是做对了,提示输入底，噢，它提示说不是浮点数，我很高兴，然后我输入一个,浮点数作为高度显示结果和我预期的相同,顺便说一句,我只是在最后把这些字符串连接起来了。
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Finally, let's do it in green, let's look at the payoffs, the expected payoffs if I shoot to the right.
最后,用绿线来表示吧,我们来看看我从右路射门的预期收益
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What I expected. So what have I learned?
这跟我预期的正确答案一样？
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Sometimes I take a little bit longer than I anticipated.
有时候我花的时间比预期的要长些。
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They might say my sample period was off, ... but that's what the theory-- ... using my data for the sample period that I computed-- the expected returns and co-variances says one should do.
他们可能说我的采样周期是有问题的，不过我的结果都是靠理论-,我采用自己收集的数据计算出-,预期收益和协方差可以用来指导我们的投资行为。
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So in this case, my expected payoff is a ? of 1 plus a ? of 4, for a total of again 2.5.
在这种情况下,我预期收益是?乘1加?乘4,总和还是2.5
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So what's my expected payoff from choosing Up where I believe the other person's going to choose Left and Right, equally likely? It's what?
那么在我对手选择左或右,可能性相同的情况下,我的预期收益会是什么样的呢
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On the vertical axis I'll put two vertical axes in, just for the sake of things on the vertical axis I'll put my expected payoffs.
坐标系的纵轴,由于种种原因,我花了两个纵轴,纵轴表示我的预期收益
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