Hello everyone, I am a Chinese college student. $$color{blue}{-frac{hbar^2}{2mu}frac{partial^2Psi(x,t)}{partial x^2}+U(x,t)Psi(x,t)=ihbarfrac{partialPsi(x,t)}{partial t}}$$ $$color{blue}{-frac{hbar^2}{2mu}left(frac{partial^2Psi}{partial x^2}+frac{partial^2Psi}{partial y^2}+frac{partial^2Psi}{partial z^2}right)+U(x,y,z)Psi=ihbarfrac{partialPsi}{partial t}}$$ $$color{blue}{-frac{hbar^2}{2mu}nabla^2Psi+UPsi=EPsi}$$ ©