I'm simply saying swap X with Y, but this 2 won't work, because where are X and Y defined?

我只简单地说交换X和Y，但是这两行不起作用，因为X和Y是在哪里定义的呢？

哈佛公开课 - 计算机科学课程节选

So we can have, if we have the final quantum number m equal plus 1 or minus 1, we're dealing with a p x or a p y orbital.

所以如果我们有,磁量子数ｍ等于正负１,我们讨论的就是ｐｘ或者ｐｙ轨道。

麻省理工公开课 - 化学原理课程节选

Right now it's a simple template, but it's a template for creating what a class looks like, and I now have an x- and y- value associated with each instance of this.

那么大家明白了为什么，我说类是一个模板了，对不对？,现在它只是一个简单的模板，但是它是一个用来-,创建形成一个类的模板。

麻省理工公开课 - 计算机科学及编程导论课程节选

So who the sender is, so maybe you could keep track of just who your most frequent correspondents are and if you keep seeing the same personfrom person X or person Y coming into your inbox and clearlyI like having a dialog with these people or have to for work, that might in fact bubble up in your inbox.

谁是发送者，你可能会保留最近跟你联系最频繁的人,如果你发现某某人频繁发送邮件给你,这说明你喜欢和这些人保持联系,可能因工作的原因必须保持联系,那么该邮件就有可能，上升到你邮件的最上方。

哈佛公开课 - 计算机科学课程节选

On the y axis here it's the percent of people with these two conditions who have cardiovascular disease--or stroke rather 5%--less than 5% and a little over 5% with the stroke as the outcome.

轴表示患有心血管疾病的人同时患有,或不患有代谢综合征的百分比,就中风来说,分别是小于5%和略大于5%

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I take the time and put it in the y equation and demand that the y I get, agrees with this y.

然后我把时间代入 y 的方程,令得到的 y 的表达式等于这一段的 y

耶鲁公开课 - 基础物理课程节选

Now get int *y so now I'll use the board for things I can't really draw very well with the keyboard so what does the memory of my program look like at the moment?

现在，=，int，*y，现在我使用黑板,我用键盘画的不是很好,那么此刻，我程序中的内存看起来像什么？

哈佛公开课 - 计算机科学课程节选

Notice in the class definition here, is there, this is the first thing that's got called, and I just called with the value for x and the value for y, and it went off and did something for me.

就在这里，这是第一个被调用的东西，我用x的值和y的值调用了它,然后这个方法继续进行，并为了做了一些操作。

麻省理工公开课 - 计算机科学及编程导论课程节选

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。

哈佛公开课 - 计算机科学课程节选

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。

哈佛公开课 - 计算机科学课程节选

It's got components which are x and y that could vary with time.

它有两个分量,x 和 y,二者都随时间变化

耶鲁公开课 - 基础物理课程节选

At every instant, it's got a location given by the vector R; R itself is contained in a pair of numbers, x and y, and they vary with time.

在每一个瞬时,它的位置由位矢 R 给出,R 本身包含了一对坐标值 x 和 y,并且它们都随着时间的变化而变化

耶鲁公开课 - 基础物理课程节选

So they're the same shape, this is the shape of the orbital or the shape of the wave function, and we can call this either 2 p x a being combined with 2 p x b, or we could say since it's the same shape, it's 2 p y a being combined with 2 p y b.

它们形状是一样的，这是轨道的形状或者波函数的形状，我们叫它2pxa和2pxb结合，或者我们说因为它们的形状是一样的，它是2pya和2pyb结合。

麻省理工公开课 - 化学原理课程节选

So, that is a tricky problem to begin with because if you take this formula here, it tells you y if you know t, but no, we're not saying that.

以这个问题刚开始的时候有点难度,因为如果你要用这个公式,求y的时候就一定要知道t,但是,我们不知道

耶鲁公开课 - 基础物理课程节选

For the simplest context in which one can motivate a vector and also motivate the rules for dealing with vectors, is when you look at real space, the coordinates x and y.

对于最简单的情况,我们能用矢量,以及相关的规则来处理的,是实空间,x-y 坐标系

耶鲁公开课 - 基础物理课程节选

pxa So what happens when we add a 2 p a and we subtract from it a 2 p x b, or the same with a 2 p y a subtracting a 2 p y b, is that we're actually going to cancel out the wave function in the center, so we now have 2 nodal planes.

当我们用,减去2pxb时，或者是2pya减去2pyb时，我们会消去,中间的波函数，所以现在我们有两个节面。

麻省理工公开课 - 化学原理课程节选

But here, if I decide I'm going to store things not in x and y, but with some other set of names, for example, I've gotta go back into these pieces of code that use the points, and change them. So I've lost modularity.

除了要改下借口,但是这里，如果我决定，我不把值放在x和y中，而是和其他一些变量名进行绑定,例如这样的话,我就得回到使用这个点的代码，那儿去做更改了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now, unlike high school math or in algebra Z where you call things X and Y and Z, in programming, in computer science, you're actually dealing with humans where it's useful to have a variable name that's more descriptive than X and Y and Z.

不像高中数学或者代数中,称为X和Y和，在程序设计和计算机科学里，你实际上是在和人打交道,在这里有个描述性比xyz更强的,变量名称是很重要的。

哈佛公开课 - 计算机科学课程节选