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the same as polar point 2, polar point 1 And then I could say well, gee, are they the same point?
和另外一个极坐标点，我如果来试试，和polar，point，2是不是相同的话？
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Their GPA, or their grade point average was less than a 2.0.
他们的成绩平均绩点，或者平均分不到2.0。
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And then I could do things like again, say, okay having done, that let me just run it here, run that, so I've now got polar point 1, and polar point 2.
然后给它们赋值半径和角度，然后我可以进行刚才的操作，也就是说，对刚才的笛卡尔坐标进行的操作，让我们来运行下它吧，运行下，现在我有一个极坐标点。
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That means that p1 and -- where I am, the point number 1 and point number 2 were completely arbitrary.
因为1和，两个点是2,陆军上面。
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So, you might have noticed that we will have spent about 6 and 1/2 lectures just getting to the point where we have only one electron, so we're only up hydrogen so far.
你们可能已经注意到了,我们已经花了６周半的时间,来仅仅是讲到单电子问题的情形，我们现在只研究氢原子。
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Okay, so while not equal to, so bang equals, exclamation point equals is computer science syntax for saying not equal to, 0 while not equal to 2 which it is not, it is equal to 0.
好的，尽管不等于不是相等的反写,但惊叹号在计算机科学的语法是不等于的意思，尽管不等于2，但它是等于。
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And magnesium oxide has a melting point of 2,800 degrees C.
氧化镁,熔点在2800摄氏度。
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Now the answer seems to me, the only answer I can imagine Socrates and Plato are giving at this point is to say, look, I need a different 3 definition of invisible, not 2 but 3.
我认为答案是，我所能想到的唯一答案是,在这点上苏格拉底和柏拉图,给出的答案是，我需要一个,无形的不同定义，不是2而是。
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So what I want to point out is 3d2 what we said now is that the 3 d 2 is actually lower in energy, so if we were to rewrite this in terms of what the actual energy order is, 3d2 4s2 we should instead write it 3 d 2, 4 s 2.
所以我们想指出的是,我们现在所说的是,实际上能量比较低，所以如果我们重新的,写出实际的能量顺序，我们应该写出。
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2 3 4 Now, at this point in the story, one, two, three, four, so notice what seems to be happening here.
到这一步，注意将会发生什么。
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p2 It's taking the name p 1 and it's changing its value to point to exactly what p 2 points to.
我要把p1赋值为1,这个操作有什么用呢？,这个操作把p1这个名字的,指针的值改变让它。
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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。
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And I can give a name to that, so c p 1 and c p 2 are both going to point to that.
为这个实例分配了空间，现在它是空的,实际上也不完全是空的。
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p1 But if I say, are p 1 and p 2 the same point, it says yes.
和p2是不是同一个点，It，says，no。,返回的结果是肯定的，在这里我有个要强调的点，这个例子里发生的是。
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It's okay to stick around for a while, but if the high point of the story occurs in chapter 2 and then there are another 67 chapters after that, you think, this was not a well-constructed novel.
有一段下跌并没有关系，但是如果故事高潮在第二章出现2,后面还有67章，你会觉得这部小说结构不好。
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So I wanted to take a few excerpts from the course's syllabus since it's not an interesting document to walk through line by line, but something you should read at some point very is not so much where you end up relative to your classmates 2 but where you end up in week 12 relative to yourself in week 0.
我想从教学大纲中,挑几段来讲一下,逐字的阅读虽然没趣,但是你也应该在某些点注意一下,你跟你同学相比最终如何,而是当第12周的时候相比第0周2,你的收获如何。
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A linear interpolation between the two, and then some numbers associated with them, 2 7-1/2 and 22-1/2. Why does he choose 7-1/2 as the freezing point of water?
两者之间做线性插值，一些数值随之标定，7。5和22。5，为什么他选择了7。5作为2,水的冰点呢？
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Is is essentially saying, given 2 things, do they point to exactly the same referent?
或者换种思考的方式，大家记得我说过当我们，调用类的定义声明的时候,它会创建一个实例？
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So from that point on it'll be exam 2 material, so depending on how you like to come compartmentalize your information, you can separate that in your brain in terms of what you're trying to learn right now versus what you can put off until a little bit later.
因此从这里开始以后的是第二次考试的内容，当然，取决于你喜欢怎样划分,你的信息，但你可以将你现在要学的,与你以后才学的知识,在你的大脑中分开储存。
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2 >> All right at this point I see 1, 2 lone souls standing; anyone else?
好，现在我只看到，两个孤独的人在那站着，还有吗？
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So, let's change our graph where we now have this zero point set as the two individuals hydrogen atoms, and then we see that our h 2 molecule is at the negative of the dissociation energy, or the negative what that bond strength is.
那么让我们把曲线图中的零点能改到,两个分离的氢原子处，那我们就会看到,氢分子就是负的离解能，或者负的键的强度。
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And what I want to point out that we just figured out for molecular orbital theory, is that o 2 is a biradical, because remember, the definition of a radical is when we have an unpaired electron.
我要指出的是,我们刚利用分子轨道理论，指导了O2是二价自由基，因为记住，自由基的定义是,有个未配对的电子。
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OK, for example, I might say point p1 is that list, x is 1, y is 2.
和y坐标的数组是很简单的1,那么，例如，我可能会说点。
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z And what you need to remember is if the z 8 is equal to eight or greater, such as oxygen being the cut-off point, this sigma 2 p orbital is actually lower in energy than the pi 2 p orbitals, the molecular orbitals.
你们要记住如果,等于或者大于，就像O是分界点，这时sigma2p轨道,比π2p轨道能量更低。
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But there's something you'll note here also when I point out the case of the 2 s versus the 2 p, which is what I mentioned that I would be saying again and again, which is when we look at the hydrogen atom, the energy of all of the n equals 2 orbitals are exactly the same.
但是这里有一些事情你们也会注意到,当我指出2s和2p的情况，我之前提过,我会一次又一次的说，我们在观察氢原子的时候，2层轨道的所有n的能量,是完全相同的。
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So at this point in the story, the addresses are still in A 1 2 3 and B; 4, 5, 6 and 1, 2, 3.
在这里，地址还是子啊a和b中,4，5，6，和。
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