But then having found one answer, you can add to it anything that gets killed by the act of taking derivatives.

一旦你算出了一个答案,你就可以往式子里加入任何,在求完导后消失的项

耶鲁公开课 - 基础物理课程节选

If you knew only the third derivative of the function, you can have something quadratic in t without changing the outcome.

如果方程里有三阶导数,你就可以引入一个二次项,但是结果却不会变

耶鲁公开课 - 基础物理课程节选

If you follow through from the independent theory, there's one of the basic relations in probability theory-- it's called the binomial distribution.

如果继续往下看,在概率论里有一个基本的概念,叫做二项分布

耶鲁公开课 - 金融市场课程节选

John, let me give you one more, one other statistic During the last 7 years, the Bush presidency household debt has almost tripled.

约翰，我再给你一项数据,布什上台后的这7年里,家庭债务翻了三番。

斯坦福公开课 - 经济学课程节选

There were some problems with that deal and I just give you one news report on that, but you can follow it if you're interested.

那项交易里存在很多问题,而我仅仅给了你一段关于它新闻报道,不过如果你对此感兴趣你可以去追查一下

耶鲁公开课 - 生物医学工程探索课程节选

Now, what do you suppose was the most expensive item on that list?

你们觉得清单里的哪一项最贵？

耶鲁公开课 - 公正课程节选