Solving second order ODE eigenvalue problem using RK4
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Hi, I'm trying to solve the following ODE using RK4:
y''+(lambda-x^2) y = 0 on [-L,L], subject to y(-L)=y(L)=0 (taking L=5 is fine).
I know the solution is lambda=2n+1, n some positive integer (some residual is fine), with y=exp(-x^2/2) (which obviously is very small at L=\pm 5)
I'm terribley bad at coding and I don't think my code will be any use, so I havent included it.
Please help. Thanks in advance.
1 个评论
Jan
2021-4-16
You forgot to ask a question. How can we help you?
Of course your code would be useful, because if you show it, we can help you to fix the problems in it.
回答（1 个）
RAKESH KUMAR
2021-9-20
0 个投票
i think you should look at this web-link: https://www.cs.ox.ac.uk/pseudospectra/eigtool/
Eigtool
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2021-4-16
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