Somebody else might say, well I want to just hold this point, I want to hold the tangency portfolio.
而另外的某些人可能会说,我就想按这个点的比例来持有投资,我想持有切线投资组合。
But here, if I decide I'm going to store things not in x and y, but with some other set of names, for example, I've gotta go back into these pieces of code that use the points, and change them. So I've lost modularity.
除了要改下借口,但是这里,如果我决定,我不把值放在x和y中,而是和其他一些变量名进行绑定,例如这样的话,我就得回到使用这个点的代码,那儿去做更改了。
I'm taking advantage of the fact that start is going to be a point, and I'm just directly saying, John give me your x-value.
我利用了开始是一个点这个事实,然后我就直接说,返回给我你的x值,因此我不知道。
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