So, maybe we can actually use the Angle by which the wheel has turned to parameterize the motion.

所以，或者我们可以使用角度，也就是车轮转动的角度作为运动的参变量。

youdao

So even if you're off an angle by a little bit you're still very close to one-- that's the reason.

因此如果偏移角度不大,结果仍然非常接近1，就是这个道理。

youdao

Result: Angle by formula is near by reality, which prove that the mathematical formula is clinically practicable.

结果：公式计算的角度与实际值基本相近，证明这一数学公式的临床可用性。

youdao

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

So we have if, and that is followed by, I'm going to use angle braces here just to indicates something goes in here, some test followed by a colon.

那么我写了if，后面跟着，我这里会用一个角括号,来代表这里有些东西，冒号后面跟着一些测试。

麻省理工公开课 - 计算机科学及编程导论课程节选

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