It can be x plus some change in x plus j times y plus a change in y.

可以写成 x 加上 x 方向的变化量,再加上 y 加上 y 方向的变化量

耶鲁公开课 - 基础物理课程节选

Z So it would be incorrect to try to assign this to a variable X or Y or Z, because it doesn't actually give me anything back.

这个是错误的，来赋值这个给变量X或Y或,因为它的确没有返回什么给我。

哈佛公开课 - 计算机科学课程节选

If you know the second derivative of y to be a, then the answer looks like this.

如果你知道y的二阶导数是a,那么这就是答案

耶鲁公开课 - 基础物理课程节选

So I don't know don't, John, I would argue if I'd written this better, I would have had a method that returned the x- and the y- value, and it would be cleaner to go after it that way.

我会去辩论这么写是不是更好，我也可以写一个，返回x坐标和y坐标的方法,这么做可能会更清楚一点，这是很棒的缩写，好。

麻省理工公开课 - 计算机科学及编程导论课程节选

So here we have energy increasing on the y-axis, and you see this straight line at the bottom here is lower down on the graph, and that's the energy of a bound electron, so that's going to be a low stable energy.

这里我们看到能量沿着y轴增加，而且在这张图片上,这条直线在底部是降低的，那是一个束缚电子的能量，所以那是一个低稳态能量。

麻省理工公开课 - 化学原理课程节选

If they tend to move together, when x is high and y is high together at the same time, then the covariance will tend to be a positive number.

如果x和y同向变动,当x值和y值同时都很大,协方差的结果将会是一个正值

耶鲁公开课 - 金融市场课程节选

It adds x to y and stores it into z. But if someone wants to be a even a little more snarky, what does this program do?

它把x加上y，再把结果存到z中，但是如果有人,想要做的有点不合常理点呢，那这个程序会做什么？

哈佛公开课 - 计算机科学课程节选

x and y can be whatever you like, but I picked a very special example You should go back and remember what we did.

你可以任意选取 x 和 y,但我这里讲个特例,你们应该回忆一下上节课的内容

耶鲁公开课 - 基础物理课程节选

For example, suppose you use vertical motion and you use y instead of x; and a would be g or -g; that's a particle falling down under the affect of gravity.

例如,假设在竖直运动中,你用 y 来代替 x,那么 a 就是 g 或者 -g,这就是一个受重力作用下落的质点

耶鲁公开课 - 基础物理课程节选

So, what we have found out so far, I'm purposely going from x to y because I want you to know that the unknown variable can be called an x or can be called a y.

到目前为止,我们有这些结论,我特地把x换成y,因为我想让你们明白,未知变量既可以写成x,也可以写成y

耶鲁公开课 - 基础物理课程节选

So we're talking about an experiment when you generate-- Each experiment generates both an x and a y observation and we know when x is high, y also tends to be high, or whether it's the other way around.

这里说的是由试验产生的,每一次试验可以获得一组x与y的观察值,当x值大的时候,y值可能也大,或者相反

耶鲁公开课 - 金融市场课程节选