And immediately it should probably come into your head that we don't actually have an atomic radius that we can talk about, right?

一提到这点你就应该立刻想到,我们并没有一个真正的原子半径,可以讨论，对吗？

麻省理工公开课 - 化学原理课程节选

All right, so now we can move on to the start of today's notes, which is atomic radius.

好，现在我们可以开始讨论今天的讲义了，从原子半径开始。

麻省理工公开课 - 化学原理课程节选

Another way to represent a point in a plane is I've got a radius and I've got an angle from the x-axis, right, and that's a standard thing you might do.

平面上面的点的方法,也就是极坐标,上面那种方法其实是，如果你们喜欢我这么说的话,笛卡尔坐标表示法。

麻省理工公开课 - 计算机科学及编程导论课程节选

So this is giving me now that template, better way of saying it, all right, a template now, for a point is x, y, radius, angle.

其他的方法来进行计算，但是这就是典型的我，要放置它们的地方，因此这就给了我一个模板。

麻省理工公开课 - 计算机科学及编程导论课程节选

If I now say, I'm going to go ahead and change the radius of this, something, my polar form did it right, but what happened to the Cartesian form?

如果我现在说，我要去改变这里的半径,一些这样的操作，我的极坐标形式，进行了正确的改动？

麻省理工公开课 - 计算机科学及编程导论课程节选

So I just computed the radius of that particular thing. Right?

这个点的半径，对不对？,计算角度是一样的道理？

麻省理工公开课 - 计算机科学及编程导论课程节选