【笔记】LRL 矢量 / Laplace-Runge-Lenz Vector
定义中心场问题中一个守恒量。定义:$\mathbf{A}=\mathbf{p}\times\mathbf{L}-mk\hat{\mathbf r}$,其中 $\mathbf p$ 是动量, $\...
In mathematics you don't understand things, you just get used to them.
In mathematics you don't understand things, you just get used to them.