What is the correct separable [Schrödinger equation][1] in spherical coordinates? Some articles use this formula: $$ \Psi(r,\theta,\phi) = R(r)\cdot\Theta(\theta)\cdot \Phi(\phi), $$ and some of them use: $$ \Psi(r,\theta,\phi) =\frac{R(r)\cdot \Theta(\theta)\cdot \Phi(\phi) }{r}. $$ So which is true? [1]: https://en.wikipedia.org/wiki/Schr%C3%B6dinger_equation#Hydrogen_atom