%TRIDEIG Eigenvalues of symmetric tridiagonal matrix.
%   E = TRIDEIG(A,B) is a vector containing the eigenvalues of a square
%   tridiagonal matrix with diagonal elements A and subdiagonal elements B.
%   A and B should be real vectors of length N and N-1, respectively, where
%   N is the size of the matrix. E is a real vector of length N.

%   P.-O. Persson <persson@mit.edu>
%   Department of Mathematics, MIT
%   October 21, 2002

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