And we talked about the equation you can use for radial nodes last time, and that's just n minus 1 minus l.

我们讲过这个用于,计算径向节点的方程，也就是ｎ减去ｌ减去１

麻省理工公开课 - 化学原理课程节选

So let's actually just simplify this to the other version of the Rydberg constant, since we can use that here.

除以n初始的平方，我们把它简化成,另一种形式的Rydberg常数。

麻省理工公开课 - 化学原理课程节选