After normalising a wave equation, lets say psi = A*e^(-r/a), and finding that A = +/- sqrt(2/a), what does this mean in terms of the physical significance of the wave?(adsbygoogle = window.adsbygoogle || []).push({});

Would the wave just be a superposition of two waves with the two different A values?

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# What is the physical significance of having +/- a constant multiplying

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