At times of crisis when everything is collapsed you know,there is no, people don't know where to go,"
VOA: standard.2010.01.20
That's an idea that struck people intuitively at various times in history, but they didn't know how to do these calculations.
在历史上,人们很多次,直觉地感知到了这一点,但是他们不知道怎么去计算
Of course, we will also be talking about behavioral finance in this course and we'll, at times, be saying that the utility function concept isn't always right-- the idea that people are actually maximizing expected utility might not be entirely accurate.
当然 我们还会,在这门课上讨论行为金融学,并且,我们会间或,讨论到效用函数不总是正确的,人们希望最大化期望效用的观点,也许并不是完全准确的
du/dV So now our du/dV, dp/dT at constant T is just T times dp/dT which is just p over T minus p, it's zero.
现在我们的恒定温度下的,等于T乘以dp/dT,在这里,等于p除以T,最后再减去p,结果是0。
I think you can tell by analogy with what I did in one dimension that the position of that object at any time t is going to be the initial position plus velocity times t plus one half a t square.
你们可以类比一下我在一维情况下的结论,这个物体在任意时刻 t 的位移,等于初始位移,加上 v ? t + 1/2 ? a ? t^2
And Mark has been extraordinary, as a leader, in maintaining a very high bar and at times, walking away from people who are receiving outstanding recommendations but either don't fit from a cultural standpoint or they're not going to scale and they'd be the wrong person a year or two from now.
作为Facebook的领导者,马克始终坚持选人标准,从不手软,他经常会放弃一些,得到强有力推荐的应聘者,他们要么是在文化方面不契合,要么是因为,如果公司没打算扩张,那他们在一到两年内,会成为错误选择。
Today, if you read the newspapers tomorrow, you'll read--we're trying to do the same thing at Motorola and if you bother to read The Wall Street Journal tomorrow or maybe The Times, I don't know you'll see a little bit of what we're trying to do there.
在当今这个时代,如果你明天读报纸,你就会读到我们正在试图对摩托罗拉公司,做和我们刚才所说的同样的事情如果你们不嫌麻烦,读一读《华尔街日报》或者《时代周刊》,我也不知,道你想读什么,你会了解一些我们正在做的事情。
At every point of time your mortgage balance is equal to your mortgage payment times that square bracketed thing, where T is the amount of time you have left.
在每个时间点的抵押贷款余额,都等于每月偿还额乘以,方括号内的值,T是剩余年份数
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