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Sometimes you see this written when you see p orbitals, one is written as plus, one is written in minus.
有时候你们看ｐ轨道时会看到，一个写成正号一个写成负号。
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Remember, we don't do a one-to-one correlation, because p x and p y are some linear combination of the m plus 1 and m minus 1 orbital.
记住，我们不需要把它们一一对应，因为ｐｘ和ｐｙ轨道是,ｍ等于正负１轨道的线性组合。
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And you would expect that that would be a much stabler compound because, instead of plus one attracting plus one, now you have plus two attracting minus two.
可以预见,这将会是更稳定的化合物，因为不再是一价正离子吸引一价负离子，而是二价正离子吸引二价负离子。
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Anything where you're actually keeping track of something like a score that's having a variable that you increment -- plus, plus, or decrement, minus, minus, using the appropriate puzzle piece could certainly be compelling.
你需要保存像分数这样的事物时,你就需要一个变量,它可以自加，++，或者自减,要使用正确的拼图。
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uniform So here, I'm going to look at the thing random dot uniform, for example, between minus volatility and plus volatility.
所以在这里，我会看到random。,比方说，在-浮动性值+浮动值之间。
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it's going to be: 1 minus the probability they'll choose Right times 1, plus the probability that they choose Right times 4.
方程是,1减对手选右的概率再乘以1,加上对手选右的概率乘以4
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You can deal with this by saying not just 5 km, but plus or minus 5 km.
你不能只说5公里,而应该是+5或者-5公里
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pV=RT p plus a over v bar squared times v bar minus b equals r t. All right if you take a equal to zero, these are the two parameters, a and b. If you take those two equal to zero you have p v is equal to r t.
我们就回到,也就是理想气体,状态方程,下面我们来看看,这个方程。
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So we can have, if we have the final quantum number m equal plus 1 or minus 1, we're dealing with a p x or a p y orbital.
所以如果我们有,磁量子数ｍ等于正负１,我们讨论的就是ｐｘ或者ｐｙ轨道。
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And so what I get is the energy of the system at the equilibrium separation is given by minus z plus.
这就是通过减去z+得到得平衡分离时,我得到的能量体系。
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Because aluminum ions have charge of plus three and oxygen ions have charge of minus two.
因为铝离子为正三价,氧为负二价。
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So this one is spin-up plus a half, this is spin-down minus a half.
所以自旋向上是正二分之一，而自旋向下是负二分之一。
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minus volatility to plus volatility it will return any value in here.
浮动值到+浮动值之间等概率地,去返回一个值。
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No, here both are plus, but this one has a minus.
不对,这里都是加号,但这有个负号
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So we have 4 plus 5, but we're actually not done yet, because it's c n minus, so if we have minus, we actually have an extra electron in our molecule.
我们有四个加上五个，但是我们实际上还没做完，因为这是个负离子，所以如果我们有这个负号，那么我们的分子实际上还有一个额外的电子。
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1/2 And we have the spin quantum number 2 as plus 1/2 for electron one, -1/2 and minus 1/2 for the electron two.
我们有自旋量子数,对于电子，我们有自旋量子数。
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It is of opposite charge and it exerts an influence, only that is minus to plus so that is going to give me a minus term here.
它具有相反的电性，所以它也会有影响，只有这个负值相对正值来说会起到减少的作用,所以这里将会引入一个负值的量。
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I am doing this for plus one minus one like sodium chloride.
我正在这样做,因为就像氯化钠那样一正一负。
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And then I'll create this function, d1 this distribution d 1, which will, whenever I call it, give me a random, a uniformly selected value between minus and plus volatility.
然后我会创建这个函数，这个概率分布，每次我调用这个函数的时候，他会给我返回一个随机的，按照均匀分布,从正负浮动值之间选择的值。
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K So minus minus K is plus K.
负负得正得到。
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It is the value plus or minus something.
而是这个值加上或减去某个东西。
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So that is one plus against one minus.
因此这是一正对一负。
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One plus this, T1 but this is the same as one minus T2 over T1.
加这个，等于1减T2除以。
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You can use delta minus, delta plus.
你可以用△+，△
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If we look at our last structure here where we have nitrogen the middle, we can also figure out all those formal charges, and in this case we have plus 1 on the nitrogen, we have minus 2 on the carbon, and then we end up with a 0 on the sulfur there.
如果我们来看看最后一个结构,在中间的原子是氮，我们同样可以计算出所有的形式电荷，而在这种情况下，氮为正一，碳为负二，而最后硫为零。
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So if we have total +2 and complete shielding -1 where that can actually negate a full positive charge, because remember our nucleus is plus 2, +1 one of the electrons is minus 1, so if it totally blocks it, all we would have left from the nucleus is an effective charge of plus 1.
抵消一个完全的正电荷,因为记住我们的原子核是,其中一个电子是,所以如果它完全挡住了它，我们从原子核中留下的，全部有效电荷就是，所以，在我们的第一个例子中,我们的第一种极端情况。
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We know that this is going to be, by measurement, this is going to be plus and this is going to be minus.
我们知道通过测量，这儿将是正，这儿将是负。
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This is the plus or minus, so the product of the uncertainty and the momentum.
是加或减，所以不确定度和动量的结果。
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*t t of n minus 1 is 3 plus 2 t of n minus 2.
加上。
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