Because the first time I wrote the program, I didn't have anything like that here and a stock could go to and then recover.

因为我第一次写这个程序的时候，我什么也没有,一只股票可以等于0然后再恢复。

麻省理工公开课 - 计算机科学及编程导论课程节选

dU=dq+dw Well from the first law, du is equal to dq plus dw, and I wrote down everything I knew at the beginning here.

第一定律“,前面我们已经,看到了。

麻省理工公开课 - 热力学与动力学课程节选