But blood drops with long tails can tell a great deal about the direction, speed and angle of the blood's starting point.

VOA: special.2010.05.05

self y Notice what I also do here, I create self dot y, give it a value, and then, oh cool, I can also set up what's the radius and angle for this point, by just doing a little bit of work.

我创建了，然后给它赋值，然后，噢太酷了，通过做一点额外的工作,就可以得到点的半径和角度了，好，实际上如果。

麻省理工公开课 - 计算机科学及编程导论课程节选

In that case point p 1 doesn't correspond to this point, it actually corresponds to the point of radius 2 and angle 1, which is about here.

基本上也就是说这是第一个点1,这是第二个点，把它们的值加到一起,然后我就得到了目标点，好，这听起来挺不错的。

麻省理工公开课 - 计算机科学及编程导论课程节选

And the second point is of radius 3 and angle 1, which is up about there.

半径为2然后角度为1的一个点,也就是差不多在这儿，我认为为了确保我做的是。

麻省理工公开课 - 计算机科学及编程导论课程节选

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