How much is one over two times the square root of pi?
圆周率的平方根的二分之一是多少？If I drop one from eight meters and I drop another one from two meters then the difference in time will be the square root of the ratio.
一个从8米处坠落，一个从2米处坠落，时间之差是它与高，之比的平方根。But the system variance is going to be on the order of the square root of N times epsilon.
但是系统能量的变化量大约，会是N的平方根乘以εBefore moving on I can describe a very simple example of pre- and post-conditions: a routine that computes the square root of a real number.
在结束此话题之前，我可以举一个有关前置和后置条件的简单例子：一个例程要计算一个实数的平方根。You do a bunch of samplings a capital N and the variation looks like the square root of that number.
你有大N个，变化量很可能就是那个数量的平方根。The code in Listing 5 first gathers the list of factors up to the square root of the target number, saving it in the factors variable.
清单5中的代码首先将该因子列表收集到目标数字的平方根，将其保存在factor变量中。then the intent is to take the square root; however, this works only if the display type of the field is Number as shown in figure 8.
则目的是求平方根；但是仅当字段的显示类型是Number（如图8所示）时才能工作。If you can harvest factors in pairs, you need only check factors up to the square root of the target number.
如果您成对获取因子，您只需要检查到目标数的平方根即可。Each observation could have been weighted inversely as the distance or as the square root of the frequence.
每次观测可以倒过来加权作为距离或作为频率的平方根。