Errata: Solution for x 2j in block diagonal form discussion has sign errors
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Location: page 106, line 7
In the solution for the pair of states x2j − 1, x2j, the solution for x2j has the incorrect signs for the sin and cos terms. The correct solution is

The solution for x2j − 1 is correct.
(Contributed by G. Orosz, 12 Feb 08)
