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Because we've now put in a bias suggesting that it should go up. Oops. It wouldn't have hurt it.
因为我们现在加入了一个,说明股市会增长的偏向值。
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OK, now that I've got that, we could think about what would I want to do with these points?
我也可以像以前那样，对它们进行赋值操作,好，现在我们已经有这些对象了？
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We wanted this to be a twenty shilling coin but now in the market it's trading at twenty-one.
我们希望它是一个值二十先令的硬币,但现在它在市场上以二十一个先令的价值来交换。
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The irony is--these things cost like a dollar each now because no one needs them anymore.
具有讽刺意味的是，这些盘现在每个,只值1美元了因为。
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And there you see the 56.
现在你看到56这个值。
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I'm assuming all the components are positive.
我现在已经假设所有值都是正的
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It adds fifty percent or a half to that and that means instead of two quarter notes that we now have three and we can do the same thing to any one of these other values here and that's how we get our triple relationships.
加上了百分之五十或者说一半的原音符值,这意味着除了有两个四分音符,我们现在有三个了,我们也可以在其他这些音符值后加上附点,这就是我们如何做到三倍形式的安排的
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Well, what we can see here is that I'm computing the same value over and over again.
好吧，我们现在看到的是,我不断地在计算同一个值。
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Let me give you, I'm going to create, q a polar point, I'm going to call it q, and we'll give it some random values.
让我给大家讲解下，我要去创建，一个极坐标点，然后我会去命名它为，然后我给它赋一些随机的值，好，现在我想知道。
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chickens OK, and then once I've got that, well, notice: I can then check to see, did I return that special symbol none?
第二部分是：,现在一旦我获得了这两个值，注意，我将再检查一下？
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And now we want to find the subset of a that has the maximum value, subject to the weight constraint.
会有一个值与其对应,现在我们想要找出满足，重量约束条件的a的最大值子集。
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All right, c p 1 dot y, x I've said assign that to the value 2, 2,0. So now c p 1 has inside of it an x and y value.
一个特定的版本，我现在命名了一个内置变量，并给它赋值了,我刚刚做的也就是给它。
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As a consequence, I can now refer to that just by its name.
因此，我现在可以通过这个名字，来访问这个值。
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Now, I mentioned this other sentinel value a while back.
现在，我刚才提到了这个标记值。
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So the assignment operator thus far makes copies of things.
所以到现在为止，赋值运算符复制了很多数据。
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It becomes a 13 and that is consistent with the code and it also doesn't crash because now y has been assigned to the correct value.
它变成了一个13，这个和代码是一致的,程序也不会崩溃,因为现在y被赋了正确的值。
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Well, A has to get whatever is in B. So now I'm clobbering, as they say, this value here, and at this point in the story, this is not good.
好的，A将获得B中的数据，现在我把这个值删掉，在这个地方,这是不好的。
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Now what I'm going to try and do is read in a set of values, but I'm going to give a type of value as well as the messages.
现在我要做的是输入一些值,并关注异常,我会输入消息以及一种其他的值。
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And actually, if I don't want to clobber, as we say, overwrite the value of my variable, ; I could declare another one and store the return value in Y; Y so now I have two ints in memory; X and Y, 3 one with two, one with three.
实际上，如果你不想彻底清除，像我们说的，覆盖那个变量的值，我可以申明另一个变量Y，并在Y中保存那个返回值;,现在内存中有两个int数，X和，一个的值为2，一个为。
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And so this time when you hand it back, this value, I store it in -- we'll say X, and now we actually have retained the value.
这次当你拿回这个值时，我把它存储在X中，现在我们把这个值保存了。
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Now I look at that element. Is it the thing I'm looking for? If I'm really lucky, it is. If not, I look at the value of that point here and the thing I'm looking for. And for sake of argument let's assume that the thing I'm looking for is smaller than the value here.
现在我们瞧瞧指向的元素,它是我们找的值么？如果足够幸运，他就是，如果不是,我们比较指向的元素,同我们要找的元素，方便起见,假设要找的元素比这里的值要小。
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We say, ah, that's now true.
我们说的是现在应该返回真值了。
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OK, and if I wanted to look at it, we can come back over here, and we can see what does c p 1 look like, interesting.
现在对于这里的每个实例，我都赋了x和y值，好，那么如果我想要研究下它,我们可以回到这里来。
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I'll draw something from the distribution, so this is interesting, distribution I'm now calling self dot distribution, and remember this will be different for each stock.
我会从分布中读取一个值，这就是有趣的部分，我现在会调用self。,请记住每只股票都是不一样的。
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So, operands. Let us take expressions, get values out, we can store them away in places, but ultimately we want to do something with them, so we need to now start talking about what are the things we can do inside of Python, or any programming language, to manipulate them.
也就是运算对象，让我们看看这些表达式，然后看看里面的这些值，我们可以把他们存在计算机的任何位置中，最终目的还是要对这些值做一些操作，因此我们现在需要开始讨论,在Python里面可以做什么，来操作它们了，或者在任何编程语言里。
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y are these the same?
坐标赋值为4，OK，，now，I，want，to，say，好，现在我想看看？
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I now assign X the value of 1.
现在我把X赋值为。
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Then, if n = 100--now I'm going to label this x differently, I'm now going to show the normal bell-shaped curve and I'm going to do this from 0 to .4.
如果n=100,现在我得重新标x值,我现在要画正态分布的钟形曲线了,在这儿用0到0.4
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It's reasonable because it's meant TMP for temporary purposes just to call it temp or T-M-P for short, X and I can define temp as -- why don't I set it as equal to X, initially, because now that I've stored X in a separate chunk of memory, I can now change its value and then I can say Y gets, not X, but temp, and so now I've actually swapped these values.
这是合理的，因为它是为,暂时的目的，只要叫它Temp或简称它为，我可以定义temp为--为什么我不把它设定为等于，最初的，因为现在我把X存储在一个单独的内存块中,我现在可以改变它的值，然后我说Y等于，不是X，而是temp，所以现在我交换这些值。
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