You know when you add 2 polar forms, you add the radii together, you don't add the angles together, you need to do it in Cartesian form.
表示形式的不同理解,返回给你了不同的值,这也就带来了一系列的问题,第二个问题是。
Or you could also use the "I have" pattern negatively to show that you do not possess something.
当然,你也可以用“I have”句型的否定形式来表示你并没有某些东西。
The other thing is that we can re-write our h c n in terms of bonds.
还有一件事是我们可以用键的形式来表示氰化氢。
Right, and just to get a sense of this, let's look at a simple little example, so on your hand-out, you'll see I've got a little piece of code that says assuming I've got one of these points, I want to do things with it, for example I might want to add them together.
这些数组中的一个,你怎么能够知道,它是哪种类型的呢?,你怎么知道它是以笛卡尔坐标,表示的还是以极坐标,形式表示的呢?,你没有可以用来区分的东西,你没有说明这种信息,聚集实际上的意义。
And somebody wants to think in terms of those.
有些人想用这种形式来表示
or you can use an "I don't think" question, which, of course, is very similar, only in the negative version of the "I think" question.
当然,你也可以使用“I don't think”的句型,它与“I think”句型十分类似,只不过是以否定句的形式表示。
If she's got a pair of numbers and you got a pair of numbers, the new numbers are called the primed numbers and you want to write them in terms of yours.
如果她有一组系数 你也有一组系数,新的系数被称作带撇的系数,你想用自己的形式来表示它们
Now, when you work with components, Ax and Ay, if I didn't mention it, they are the components of the vector, you can do all your bookkeeping in terms of Ax and Ay.
当你们在计算分量 Ax 和 Ay 的时候,即使我没有说明,你们也要记得它们是矢量的分量,你们可以都用 Ax 和 Ay 的形式来表示
So what I'm leading up to here is that we've got a problem.
假设实际上p1和p2是,我用极坐标形式表示的。
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