或者是1/2,k,x的平方。
Things sort of cancel out here. Rearrange 4x squared divided by n squared minus x squared.
有些量抵消了,整理一下4x平方除以n平方减x平方。
For example, the moment of inertia about the z-axis is dV the triple integral of x squared plus y squared density dV.
例如,关于z轴的转动惯量,是∫∫∫δ
f=0 I would write f of x is in big Oh of n squared.
我写下了。
So you see what it is--it's a measure of how much x deviates from the mean, but it's squared.
你会看到,这个指标,衡量的是x与平均值的偏离,而且这里有个平方
I can either look at my flow chart, or I can look at the code. If I look at the flow chart, it says, I'm at this point. Look at ANS squared. Is it less than or equal to-- sorry, first of all, 0 ANS squared is 0, is it less than or equal to x, yes.
我可以看流程图也可以看我的代码,如果我看流程图的话,流程图这么说的,在这一点,看看ANS的平方,看是不是小于等于-对不起,首先,ANS的平方是。
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