But let's suppose that I realize that I'm doing a lot of addition in my programs, and I actually want to factor out what seems to becoming a lot of copy, paste.

但是假如我在程序中做了很多加法,我实际上想要提出那些,复制粘贴的东西。

哈佛公开课 - 计算机科学课程节选

And he quite correctly, because he's more senior than I am, more experienced than I am, said it's actually a good thing.

你可以用加法来加浮点数，他很明显是正确的，因为他比我年长些，比我更有经验些。

麻省理工公开课 - 计算机科学及编程导论课程节选

If you're writing a one line function, whose sole purpose in life is addition, and, clearly, this is about addition, well, then it's, in fact, A reasonable to use a shorter symbol like A, but I do have to specify it's type.

如果你在写一个一行的函数，它唯一的目的是,做加法，显然这是关于加法的，好的，实际上，用一个短的标识符是合理的，像，但是我必须指明它的类型。

哈佛公开课 - 计算机科学课程节选

This is how you get the rules for adding a vector to another vector, then taking a vector and multiplying it by some constant.

以上这些就是矢量加法的法则,以及数乘矢量的法则

耶鲁公开课 - 基础物理课程节选

As Dero says, " "soul grows more by subtraction than by addition", by getting rid of these limitations, limitations that are preventing us from fulfilling our potential.

就像俗话说的那样，“做减法比做加法让灵魂成长得更快，减法包括除去那些，阻碍我们发挥潜能的限制。

哈佛公开课 - 幸福课课程节选

In which I said, you know, I didn't like the fact that things like plus are overloaded, because you can use plus to add strings, you can use plus to add numbers, you can use plus to add floats.

那个玩笑是这样的，你们懂得，我并不喜欢,加法被重载这样的事情，但是你可以用加法，来对字符串进行合并，你可以用加法来加数字。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now what I'd like to do, every time I find a divisor I'd like to gather it together. So I'm going to create a tuple of one element, the value of i.

那么我就会去创建只包含一个元素的元组,也就是这个除数了,然后，啊，很好,这里是加法重载的一个很糟糕的应用。

麻省理工公开课 - 计算机科学及编程导论课程节选

I keep seeing addition and I keep just copying my code, copying my code.

我总是看到加法,我一直复制我的代码，复制代码。

哈佛公开课 - 计算机科学课程节选

Okay, so that tells you how to add two vectors and get a sum.

这就是矢量的加法法则

耶鲁公开课 - 基础物理课程节选

Okay, so the rule for adding the two vectors is, you draw the first one and at the end of that first one, you begin the second one.

矢量的加法法则就是,先画出第一个矢量,然后在它的终点,再画第二个矢量

耶鲁公开课 - 基础物理课程节选

It doesn't matter the sequence in which you add the two vectors.

在做两个矢量的加法时无所谓相加的顺序

耶鲁公开课 - 基础物理课程节选

You know that's true for ordinary numbers, right?

这对于普通数字的加法成立,不是吗

耶鲁公开课 - 基础物理课程节选

This is the rule for adding vectors.

这就是矢量的加法法则

耶鲁公开课 - 基础物理课程节选

It is clear that that vector is the sum of that vector and that vector, by the rules of vector addition, because that plus that is equal to the A.

这个矢量是这个两个矢量之和,根据矢量加法的法则,因为这两个矢量相加就等于 A

耶鲁公开课 - 基础物理课程节选