Again, the reason for that is because the energy only depends on the n value here, it doesn't depend on l or on m.

因为，能量,只和n的值有关，与l和m的值无关。

化学原理课程节选 : 麻省理工公开课

Y You don't want to rename them L and R or X and Y right because you want to call them left and right.

你不想把它们重命名为L和R，或者X和,因为你想叫它们为left和。

计算机科学课程节选 : 哈佛公开课

And if you've typed in l when you should've 1 typed a 1, or a 1 when you should've typed an l, you're likely to miss it. If you've made a mistake with upper and lower case. Things like that. So just be very careful looking at that.

如果你本来想打，1，的时候,却输成了，l，或者打，l，的时候输成了，你很可能注意不到这个错误,如果你把大小写弄混了也是一样,要注意这个错误。

计算机科学及编程导论课程节选 : 麻省理工公开课