Expansion in energy eigenfunctions

Simulation

Expansion Game

Superposition \(u(x)\)

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Main controls

Superposition \(u(x)\) at time \(t=0\):

N sin5(pi x/L)

\(u(x)\) =

 +

c1u1(x)

c1 ≈ 0.89

 +

c3u3(x)

c3 ≈ −0.45

c2 = c4 = c6 = ... = 0

 +...

c5u5(x)

c5 ≈ 0.09

\(u(x)\) and \(\sum_n c_{n \,} u_n(x)\)

individual \(c_{n \,} u_n(x)\)

c1 = 0.00

1

0

−1

c2 = 0.00

1

0

−1

c3 = 0.00

1

0

−1

c4 = 0.00

1

0

−1

c5 = 0.00

1

0

−1

c6 = 0.00

1

0

−1