So, in this definition now, we have one term which we know.
好,在这个定义中,这一项我们已经知道了。
And it's a sentence you wanna use when you wanna describe an activity that
当你想描述一项活动时,你可以使用这个句型。
Suppose you could find 10,000 independent assets, then you could drive the uncertainty about the portfolio practically to 0.
假设你能找到一万项相互独立的资产,那么你就可以将这个投资组合的风险,降到几乎为零。
So if we want to solve for ionization energy, we can just rearrange this equation.
因此,要想解出电离能,我们只需要将这个方程中的项变换一下位置。
So let me share with you just a couple of studies in this area.
我要和大家分享这个领域的两项研究。
He has put out this counter insurgence strategy, it's a three point stategy.
他提出了一项新的反暴动策略,这个策略主要有三点。
We can measure the heat capacity at constant volume, and now we have another term, and if we can figure out how to measure it, we'll have a complete form for this differential du which will enable us to calculate du for any process.
我们能够测量恒定体积下的热容,这里我们有另一项,如果能够知道怎么测量它,问我们就有了这个完整的微分式,就能够对任何过程计算。
And a lot of the strikes that you see in high schools and in-- I better get to my lecture,but-- you see in high schools and even in middle schools, have to do with the State,somebody saying, well we're going to take away two-hundred teachers in your department, or we're going to maintain a curriculum that doesn't seem to make any sense.
在高中里可以看到很多罢课,我最好回到正题,但还是再讲一点,在高中,甚至在初中有很多罢课,为了反对政府的某项规定,比如说要在这个系减少两百个教师,或者主张一份,完全不合理的课程安排
And then, you start thinking, "Well, I could really start doing this if only X and if I had this person or if this technology existed or if this happened or this happened."
之后,你会开始思考,恩,只要某项条件成熟了,只要我认识这个人,或是如果这个技术存在,或是如果这个或那个发生了,我就能开始落实这个点子了“
Regardless of what we think of the success of that example or of the appeal of the attempt to do such a thing, the amazing thing, I think, is that Milton felt so empowered even to embark on such an enormous project.
他的重建是否成功了我们姑且不论,也不说我们对他的这个雄心作何看法,我认为,不可思议的是,米尔顿觉得自己是如此有力量,他甚至真的开始了这样一项宏大的工程。
All I'm doing here, nothing particularly exciting, I'm simply plugging this expression in for P and then I multiplied the whole thing out because it was all multiplied by q.
这些计算过程确实很枯燥,我只是把这个算式代入到P中,然后打开整理,因为每一项都乘以了q
OK, so how can I code this up? Well, you might think, let's just jump in and write some code, I don't want to quite do that though, because I want to show you another tool that's valuable for thinking about how to structure the code, and that is a something called a flow chart. Now.
好,那么我怎么把这个以代码实现呢,你可能会想,让我们进去直接写代码把,但是我不想这么做,因为我想教给大家另外一项很有价值的,用来组织代码的工具,叫做流程图,现在,像Guttag教授,和我这么大岁数的人。
That means, when I take two derivatives, I want to get a, then you should know enough calculus to know it has to be something like at^, and half comes from taking two derivatives.
也就是说,当我想求二阶导时,得到了a,你应该有足够的微积分知识,才能知道必须有类似at^的项,而这个1/2则是因为求了两次导数
Whatever we may think about this view, whether we like it or don't like it or whatever your view might be, you must also confront another famous, more like infamous, doctrine that is also very much a part of Book I.
无论我们会如何思考这个观点,也无论我们喜欢与否,更不管你的观点为何,你都必需要面对另一项著名,或更像是恶名,同样也是在第,I,册提及的学说。
In order to explain it-- I had to write down the binomial distribution to explain it properly.
要解释这一点,我要先在黑板上写一个二项分布,以便于解释清楚这个问题
That's moral hazard; but it's not unique to that, it's all over the place.
这就是道德风险;,并不仅仅是这一项,随处可见这个问题。
And this is one of many studies in this area.
这是这个领域中的一项研究。
The reason why we need positive psychology is to shift the pendulum from the 21:1 ratio that we have today: for every one study on depression or anxiety, we have 21 studies on-- sorry, for one study on happiness or wellbeing, we have 21 studies on depression and anxiety.
我们需要积极心理学是为了改变,现在的21比1这个比率:,每有一项关于抑郁或焦虑的研究,就有21项,对不起,应该是每有一项关于快乐或幸福的研究,就有21项关于抑郁或焦虑的研究。
But, in between, if some other number, it'll be some blend of the--mean and variance of--the portfolio will be some blend of the mean and variance of the two assets.
但如果是在0和1之间的其他数值,这个投资组合的均值和方差将会是,两项资产各自的均值和方差的综合结果。
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