R-squared 系数 ; 可决系数 ; 拟合度 ; 拟合优度
Adjusted R-squared 调整的可决系数 ; 判定系数 ; 决系数 ; 调整后的离差平方和
R squared change 改变量
Pseudo R-squared 伪决定系数
Pred R-Squared 预测复相关系数平方
Dynamic R-squared 动态解释比例
I multiply both sides with R squared.
两边都乘以R的平方。
the force, gravitational force, falls off as one over r squared.
,力,重力,随着r的平方而减少。
We came exactly to that conclusion-- that the gravitational acceleration falls off as one over r squared.
我们得到结论-,重力加速度,随r的平方而减少。
So if we want to talk about the volume of that, we just talk about the surface area, which is 4 pi r squared, and we multiply that by the thickness d r.
如果我们要讨论它的体积,我们要用的是表面面积,也就是4πr的平方,乘以厚度dr
And we can simplify this expression as saying negative e squared over 4 pi, epsilon nought r squared. Epsilon nought is a constant, it's something you might see in physics as well.
也会遇到它,在这里,你可以就把它,理解为一个转换系数,我们需要做的。
pV=RT p plus a over v bar squared times v bar minus b equals r t. All right if you take a equal to zero, these are the two parameters, a and b. If you take those two equal to zero you have p v is equal to r t.
我们就回到,也就是理想气体,状态方程,下面我们来看看,这个方程。
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