If they tried to notate it, again it would take all the spirit out all the heart out of the music.
如果有人试图去记录下来,那也就剥夺了这段音乐所有的神韵,取走了这曲子的灵魂
So now we can just take the negative of that binding energy here, and I've just rounded up here or 1 . 4 times 10 to the negative 19 joules.
等于4是第三激发态,现在我们可以取它结合能的负值,也就是1。4乘以10的负19次方。
When you mix two chemicals together, it could be any number, there's an infinite number of possible numbers and that would be continuous.
把两种试剂混合的时候,温度可以取任何值,对温度的取值有无数种可能,也就是说,是连续的
Can you understand that the mother might think it's that person even though it's really that person?
你是否能够理解,母亲也许也会认定是这个人偷取了食物,即使实际上进行偷窃的是另一个人
But I can also ask for parts of this. So I can, for example, say give me the first element of s1 string 1, s 1. Ah, that's exactly what we would have thought if this was represented as an ordered sequence of things.
然后返回一个长字符串,我也可以,取字符串的一部分,例如,我可以要求返回给我字符串,的第一个元素,啊,这证明我们之前,认为的它是一个有序的字符序列的想法。
If that's all it knows, then in that scenario there is no building or anything else; it continues a trajectory both forward in time and backward in time, and it says that whatever seconds, one second before you set your clock to 0, it would've been on the ground.
如果是这样,在那种模式下,没有楼房或者别的什么,物体的运动轨迹可以沿时间可以向后延伸,也可以向前延伸,不管时间取什么值,在零点前一秒时,物体就在地面上
So any point I pick on that path will be equal to p1, V1 to the gamma.
也就是说路径上面任取一个点,计算p,V^γ
I need to now put this float somewhere, and I'll put it in a variable called f that you can call it whatever you'd like.
我现在需要把这个浮点数放在哪个地方,然后我把它放在,一个叫做f的变量里,你也可以给这个变量取其它的你喜欢的名字。
So if we take this term, which is a volume term, and multiply it by probability over volume, what we're going to end up with is an actual probability of finding our electron at that distance, r, from the nucleus.
如果我们取这项,也就是体积项然后,乘以概率除以体积,我们能得到的就是真正在距离,原子核r处找到电子的概率。
Even though the deposits are short-term and the depositor can get the money at any time, the depositor is earning interest of a level that can only be made on long-term loans.
即使是短期存款,存款人可以随时取走存款,存款人也可获取仅从长期贷款中,才可得到的利息水平
So, what we can do to actually get a probability instead of a probability density that we're talking about is to take the wave function squared, which we know is probability density, and multiply it by the volume of that very, very thin spherical shell that we're talking about at distance r.
我们能得到一个概率,而不是概率密度的方法,就是取波函数的平方,也就是概率密度,然后把它乘以一个在r处的,非常非常小的,壳层体积。
You have discrete random variables, like the one I just defined, or there are also--which take on only a finite number of values-- and we have continuous random variables that can take on any number of values along a continuum.
就像刚定义的,是一个离散型随机变量,随机变量还可以有无限种取值,也就是连续型随机变量,随机变量可以取某一区间的一切值
You can also go up here, you can go beyond 100% stocks, you can have 150% stocks in your portfolio.
你也可以往上看,You,can,see–,可以取到超过100%的股票,在投资组合里你可拥有150%的股票。
So, let's say we start off at the distance being ten angstroms. We can plug that into this differential equation that we'll have and solve it and what we find out is that r actually goes to zero at a time that's equal to 10 to the negative 10 seconds.
也就大约是这么多,所以我们取初始值10埃,我们把它代入到,这个微分方程解它,可以发现,r在10的,负10次方秒内就衰减到零了。
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