Now we've set it up as a matrix, let's try again that question I asked before.

现在我们就把这个矩阵写好了,我们现在来回答之前的问题

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So if we talk about the probability density and we write that in, it's going to be sigma 1 s star squared, 1sb so now we're talking about 1 s a minus 1 s b, all of that being squared.

如果我们讨论概率密度，而且我们把它写出来，它等于sigma1s星的平方，现在我们说的是1sa减去，这整体再平方。

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