"People have been demonstrating these sets for a long time. But the reason it is coming out now is because of a new standard for Blu-ray players that can show movies in 3D."
VOA: standard.2010.03.11
Then, once we did that we could plug that into the formula that I gave you last time and get the standard deviation of the portfolio and the expected return on the portfolio.
再将估算出的数值代入到,上节课给你们的公式中,就能得到资产投资组合的标准差,和该投资组合的预期收益率
We keep all sorts of secrets in our company; we don't want to be filing all of our information all the time and to have it go right up on the website on standard forms so that everyone can easily process it.
我们希望保守公司的秘密,不愿意把公司信息归档,然后立刻以标准格式发布到网上,以便所有人浏览
The standard library, that first line of code, it's not strictly necessary but any time you use a function, a tool that someone else wrote that lives in that so called library, you do need that include line as we'll see.
标准库函数--第一行代码,严格来说,不是每次都要写的,但是一旦你调用某个别人写,的函数,而这个函数又恰巧位于标准库里面,你就要像我们看到的这样,把它include进去。
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