那就是你的均方根。
The paper proves that optimal controllers can stabilize the exponentially mean square of networked control systems.
并证明了该最优输出反馈控制律可使网络控制系统均方指数稳定。
The results of the test data indicate that the prediction system is reliable and the root of mean square error is about 15%.
对测试数据的预测结果表明,该预测系统能够可靠工作,预测结果的均方根误差在15%左右。
All right? I mean, I can make money at Harvard Square doing this stuff, right?
对不对?【鼓掌】我意思是,我可以在哈佛广场,靠做这个赚钱对不对?
What we want to do now is compute the mean and variance of the portfolio-- or the mean and standard deviation, since standard deviation is the square root of the variance-- for different combinations of the portfolios.
我们现在要做的是,计算这个投资组合的均值和方差-,或者均值和标准差,因为标准差的平方就等于方差-,这对任何投资组合都是一样的。
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