View source for Semi-Infinite Array

This is a problem in which a structure repeats periodically to infinity. It is closely
related to the [[:Category:Infinite Array|Infinite Array]] problem but is much more challenging due to
the fact that the solution cannot be assumed periodic. The standard method
is to solve for the [[:Category:Infinite Array|Infinite Array]] and to subtract this solution from
the solution for the semi-infinite array. Additional diffculties arise if the structure supports [[Rayleigh-Bloch Waves]] because this needs particular attention.

[[Category:Infinite Array]]