睡觉了
by 966123anyunchuan @ 2021-03-07 00:53:30
@[966123anyunchuan](/user/282292)
可以理解为相对误差 $\le 10^{-4}$
基本上保留 5 到 6 位小数就行了
by legendgod @ 2021-03-07 07:17:04
@[legendgod](/user/151723) 谢谢！
by 966123anyunchuan @ 2021-03-07 11:26:49