Can’t understand much… hic hic
Just copy this from the book

Schrodinger equation:
i \hbar\frac{\partial}{\partial t}\psi(x,t)=\frac{\hbar^2}{2m}\frac{\partial^2}{\partial x^2}\psi (x,t)+V(x)\psi (x,t)H\psi (x,t)

Another thing, how to type mathematical equations: from Wikibook and here