We've been dealing with these sigma notation variables and all that so far.

到目前为止，我们一直在处理这些 sigma 符号变量等等。

And if you've done the calculus playlists already, sigma notation is really like a discrete integral on some level.

如果你已经完成了微积分播放列表，sigma 符号在某种程度上真的就像一个离散积分。

And I think just by doing this we'll also get a little bit better intuition of just manipulating sigma notation, or even what it means.

而且我认为仅仅通过这样做，我们也会对操纵 sigma 符号甚至它的含义有更好的直觉。

But if you think about it, this is the same thing as-- if you're not familiar with sigma notation this is a good thing to know in general, just a little bit of intuition.

但如果你仔细想想，这与——如果你不熟悉 sigma 符号， 一般来说这是一件好事， 只是一点点直觉。