https://physics.stackexchange.com/questions/253477/specific-function-is-a-linear-combination-of-energy-eigenstates

This is a purely conceptual question (one which does not fall under our _current_ homework policy, for whatever that's worth) that nevertheless shows no effort on the part of the asker.

**Vote up if you think this should be on topic under the new policy, or vote down if you think it should be off topic under the new policy.**