如果我来看看这个笛卡尔,哦,我还没有笛卡尔形式,当我自言自语的时候,请大家别介意。
If I look at the Cartesian, oh, I did have the Cartesian form, don't mind me while I mutter to myself here quietly.
我应该早点通过输入笛卡尔形式,来说明这个的,那么让我回到刚才说到的地方,很抱歉,让我去把,这个a, 1再做一遍。
I should have done this earlier by typing the Cartesian form earlier, so let me go back to where I was, sorry for that, let me go make this a 1 again.
如果我看一下笛卡尔坐标,我确实有笛卡尔坐标的形式,当我在这里小声自言自语时,不要介意。
If I look at the Cartesian, I did have the Cartesian form, don't mind while I mutter to myself here quietly.
If I look at the Cartesian, oh, I did have the Cartesian form, don't mind me while I mutter to myself here quietly.
如果我来看看这个笛卡尔,哦,我还没有笛卡尔形式,当我自言自语的时候,请大家别介意。
It's now got a different radius, same angle, so I just changed the radius of it.
我刚刚改变了它的半径,噢,但是对于笛卡尔形式来说。
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。
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