Given a state |psi> and an operator A with (non-degenerate) eigenstates |ai> corresponding to real eigenvalues ai, express the wavefunction psi(x) corresponding to the state |psi> in terms of |psi>(adsbygoogle = window.adsbygoogle || []).push({});

Now this was a question in last year's exam that my lecturer went through, but his answer on the whiteboard was:

psi(r) = <r|psi>

But the question asked for psi(x), not psi(r). Are the two then interchangeable?

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# Position coordinate

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