4的平方等于16。
它的计算方法是用一个人的体重（公斤）除以身高（米）的平方，BMI 在19到25之间被认为是健康的。
It is calculated by dividing a person's weight in kg by their height in meters squared, and a BMI of between 19 and 25 is considered healthy.
它是某个量乘以一个变量的平方。
等于a除以摩尔体积V杠的平方。
这是速度大小，的平方。
两边都乘以R的平方。
现在我们要对这个量的平方求导。
And now we have to take the derivative of this quantity squared.
如果我们要讨论概率密度，这是波函数的平方。
So if we're talking about probability density that's the wave function squared.
具体来说，光度与半径的平方呈正比。
这个公式的泛函性与电负性之差，的平方成比例。
And the functionality goes as the square of the difference in electronegativity.
使偏离的权重更大，一个数的平方是一个更大的数。
It weights big deviations a lot because the square of a big number is really big.
至于转动惯量，要求的其实是到旋转轴距离的平方。
For the moment of inertia, we want the square of a distance to the axis of rotation.
以V的平方运动，对吧？
我们得到结论-,重力加速度,随r的平方而减少。
We came exactly to that conclusion-- that the gravitational acceleration falls off as one over r squared.
我们关心的是，距离的平方，所以它就是y的平方。
What we actually care about is the square of a distance, so it will just be y squared.
普朗克常量的平方,乘以π再乘电子的质量。
Square of the Planck constant times pi mass of the electron.
它是7的平方、11的立方和13的平方三者的乘积。
It is the product of 7 squared times 11 cubed times 13 squared.
例如，直角三角形斜边的平方，等于其它两边的平方和。
For example the square on hypotenuse of a right Angle triangle is equal to the sum of the squares of the other two sides.
要讨论它的波函数，我们说它是sigma1s的平方。
So to talk about it's squared, we're going to say it's sigma 1 s squared.
我接下来要求b的平方和h的平方,的和的平方根对不对？
I want to then do, I need to find the square root b squared plus h squared, right?
其定义为按公斤计算的体重除以按米计算的身高的平方(kg/m2).
It is defined as a person's weight in kilograms divided by the square of his height in meters (kg/m2).
他也因梅特卡夫定律而众所周知：网络价值的增长等于其用户数量的平方。
He's also known for Metcalfe's Law: the value of a network grows as the square of the number of its users.
例如，R 2的平方、二维向量的长度、三角不等式等都存在勾股定理。
For instance, it's also the square of the Euclidean norm on R2, the length of a two-dimensional vector, a part of the triangle inequality, and quite a bit more.
当波从小扰动源向各个方向均匀传播时，其强度的变化与距离的平方成反比。
When a wave travels uniformly in all directions from a small source, the intensity varies inversely as the square of the distance.
在展示的一张幻灯片中，他将网络价值的量化与使用者人数的平方简单做比。
On a slide, he quantified a network's value as roughly proportional to the square of its number of users.
质量与股骨长度的,三次方成正比,同时与股骨厚度的平方,成正比。
The mass is proportional to the length of the femur to the power three and to the thickness of the femur to the power two.
所有的都是sigma1s，上面有两个电子，所以是sigma1s的平方。
All it is sigma 1 s, and then we have two electrons in it, so it's sigma 1 s squared.
可以这样解释梅特卡夫的发现：网络的有用性，是其所联系的用户数量的平方数。
To paraphrase Metcalfe's findings, the usefulness of a network is the square of the number of users connected to it.
可以这样解释梅特卡夫的发现：网络的有用性，是其所联系的用户数量的平方数。
To paraphrase Metcalfe's findings, the usefulness of a network is the square of the number of users connected to it.
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