4的平方等于16。
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。
But we do have an interpretation for wave function squared.
但波函数的平方我们有一个解释。
So you get length divided by time squared.
所以求它的公式是长度/时间平方。
And then you minus the average of e, the quantity squared.
然后你减去e的平均值，这个量再平方。
Times the boiling point of the pure material squared.
乘以纯的物质的沸点温度的平方。
Velocity squared is the speed.
速度的平方为速率。
The result is a new list containing the squared elements.
结果是一个包含平方元素的新列表。
So if we're talking about probability density that's the wave function squared.
如果我们要讨论概率密度，这是波函数的平方。
To get the best fitting line, you find the line that minimizes the sum of squared distances.
要找到最切合的直线，就是要使，这些距离的平方和最小。
I mean, there are some spokes here, but let's assume that everything is here, so then the moment of inertia is MR squared.
我是说，有一些偏差，但是假设每件事都在这，所以时间惯量是MR的平方。
It is the product of 7 squared times 11 cubed times 13 squared.
它是7的平方、11的立方和13的平方三者的乘积。
And now we have to take the derivative of this quantity squared.
现在我们要对这个量的平方求导。
I multiply both sides with R squared.
两边都乘以R的平方。
It is telling us that the ground state in lithium would be Z squared.
它告诉我们锂原子的基态,是z的平方。
It's the magnitude squared of the velocity.
这是速度大小，的平方。
以V的平方运动，对吧？
So the probability again, that's just the orbital squared, the wave function squared.
同样，概率密度，这就是轨道的平方，波函数的平方。
This is a great tragedy, because now you get one-half the sum of the masses, which is three times this small number squared.
这是个大悲剧，质量变为原来的一半，是此数字平方的三倍。
It's something times a variable squared.
它是某个量乘以一个变量的平方。
Specifically, luminosity is proportional to radius squared.
具体来说，光度与半径的平方呈正比。
So what is the wave function squared going to be equal to?
波函数的平方等于什么？
One is 144, 169, which reads like 12 squared followed by 13 squared; another the easily remembered number of 1, 234, 567, 891.
其中一个是144,169，就像是12的平方跟了一个13的平方。另外一个比较容易记住的数字是1,234,567,891。
Three E int over k T squared, because there are some things I want to point out about it.
三倍的相互作用能E除以k，T的平方，因为有些事情我想说明。
What we actually care about is the square of a distance, so it will just be y squared.
我们关心的是，距离的平方，所以它就是y的平方。
So, again we can use these probability density plots, which are just a plot of psi squared, where the density of the dots is proportional to the density, the probability density, at that point.
同样的我们可以利用这些概率密度图，这是psi的平方的图，这里面点的密度，正比于概率密度。
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。
One-half m1 m2 divided by m1 plus m2 times v1 squared.
1/2乘m1m2除以2,再乘以v1的平方。
One-half m1 m2 divided by m1 plus m2 times v1 squared.
1/2乘m1m2除以2,再乘以v1的平方。
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