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JordanGo
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Homework Statement
Find the eigenfunctions of the Helmholtz equation:
[itex] \frac{d^2y}{dx^2}+k^2y = 0 [/itex]
with boundary conditions:
[itex] y(0)=0 [/itex]
[itex] y'(L)=0 [/itex]
Homework Equations
General Solution:
[itex] y = Asin(kx) + Bcos(kx) [/itex]
The Attempt at a Solution
I found that at y(0) that B=0 and that at y'(L) that Akcos(kL)=0.
What do I do with these results?