If you give a sign, on top of the number, that takes care of all ambiguity in one dimension.

如果你在数字前加一个符号,就把一维运动的所有的歧义解决了

耶鲁公开课 - 基础物理课程节选

So what would I want to do? I'd like to somehow walk down each of the digits one at a time and add them up. Ah, that's a looping mechanism, right? I need to have some way of walking through them.

去取这个数的,每个数字然后把他们加起来,啊，这是个循环机制对不对？,我得找到一个遍历它们的方法,一种简单的方法可能。

麻省理工公开课 - 计算机科学及编程导论课程节选

All around. If you plug in the numbers, you will end up with an uncertainty 15% in the momentum as being on the order of 15%.

所有，如果你把数字都加起来，你将得到一个关于动量的不确定度,约为。

麻省理工公开课 - 固态化学导论课程节选

We have to add it all up so it's not just numbers, three against one; it's also all of those people at home.

得把这些加起来考虑,所以就不只是这个数字，三比一;,还要加上这三人的家人。

耶鲁公开课 - 公正课程节选

If you don't put an arrow on top, it means you're talking about just a number A.

如果不加这个小箭头,也就意味着你只是在讨论一个数字 A

耶鲁公开课 - 基础物理课程节选

I then create a third variable called "z," add those two digits together, store the sum.

然后我声明了一个叫做“z“的变量“,把这两个数字加起来，把他们的总数存起来。

哈佛公开课 - 计算机科学课程节选

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

But there's an important thing going on here, if I in fact wanted to combine those into a string I should have told the machine to do that, and I can do that, by explicitly saying, take that, which is a number, then add it to that string.

但是这里有个很重要的事情，实际上想要把这些加到一个字符串里面去,我应该告诉计算机去做这个，我应该这么做，通过明确的输入，也就是把这个对象，一个数字，然后把它加到一个字符串里面去。

麻省理工公开课 - 计算机科学及编程导论课程节选