Remember that the method Math.sqrt returns a double, which is therefore only an approximation of the actual square root.

记住方法Math . sqrt返回的是一个double型，也就是说这只是一个大概值。

youdao

Remember that the method Math.sqrt returns a double, which is therefore only an approximation of the actual square root.

记住方法Math . sqrt返回的是一个double型，也就是说这只是一个大概值。

youdao