用日记来计算床上时间 time in bed
不是使用秒,分,小时,天来计算时间的。
这些量是以它们提供的周期来计算时间的。
These quantities are then dated according to the period to which they refer.
这种钟表通过电磁波的频率来计算时间,单位为百万分之一秒。
The clock measures the passage of time in millionths of a second by counting the frequency of electromagnetic waves.
Well, you'll know when it crashes, that doesn't help you very much, but you can't always tell whether something's stuck in an infinite loop or whether it's simply taking a long time to compute.
好,你将学到它在什么时候会崩溃,这对你帮助并不大,但是你不能辨别出到底是在一个循环中,有什么东西卡住了呢,还是程序需要很长的时间来计算一个结果呢。
As I said, what we want to do is, we want to count the number of basic steps it takes to compute a computation as a function of input size.
我刚才提到了,我们要建立,一个根据输入大小的方法来计算,一个计算过程需要的时间,建立这个方法需要几步呢?
In practice, most of the time we work with these two numbers, Ax and Ay.
在实际过程中,大多数时间我们就用 Ax 和 Ay 来计算
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