1. The problem statement, all variables and given/known data I am to show that Schrodinger's equation is linear. 2. Relevant equations 3. The attempt at a solution I think it is sufficient to show that if psi1 and psi 2 are the solutions of Schrodinger equation, then any linear combination of them, say (a psi1+b psi 2) is also a soluton to that equation. Am I missing something?