where i test syntax and other meta things iℏ∂∂tΨ(r,t)=[−ℏ22m∇2+V(r,t)]Ψ(r,t)i\hbar \frac{\partial}{\partial t} \Psi(\mathbf{r},t) = \left [ -\frac{\hbar^2}{2m}\nabla^2 + V(\mathbf{r},t)\right ] \Psi(\mathbf{r},t) iℏ∂t∂Ψ(r,t)=[−2mℏ2∇2+V(r,t)]Ψ(r,t)