So in fact, it is the case, if you look at data, and by the way, that's the way I ended up setting a lot of these parameters and playing with it, was comparing what my simulation said to historical stock data.
所以实际上,在这个例子中,如果你看到数据,顺便说一下,这就是我设置很多变量,然后编程的方式,也就是把我的仿真程序得到的结果,和历史股票数据进行比较。
All right. How do we go about choosing these parameters?
好了,我们怎样选择这些参数呢?
You could go through a lot of these parameters and think about it in the same way that these things are really very highly controlled.
通过看许多这样的指标,即这些身体指标确实都以相同的方式,被严格控制着
Let's build this up. Let's see where this comes from, where these parameters a and b comes from. So, the first thing we're going to do is we're going to take our gas in our box, let's build a box full of gases here.
参数a和b有什么含义,首先,假设研究的气体,都在一个容器里,容器里充满了气体,这些是气体分子。
Where do these parameters come from?
这些参数都是从哪儿来的呢?
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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