ZHBGVD Example

To find all the eigenvalues of the generalized band Hermitian eigenproblem Ax = $\lambda$Bx, where

A = $$\left(\vphantom{ \begin{array}{cccc} -1.13 & 1.94 - 2.10 i & -1... ...- 0.16 i \\ 0 & -0.67 - 0.34 i & -1.10 + 0.16 i & 0.50 \end{array} }\right.$$$$\begin{array}{cccc} -1.13 & 1.94 - 2.10 i & -1.40 + 0.25 i & 0 \... ... & -1.10 - 0.16 i \\ 0 & -0.67 - 0.34 i & -1.10 + 0.16 i & 0.50 \end{array}$$$$\left.\vphantom{ \begin{array}{cccc} -1.13 & 1.94 - 2.10 i & -1... ...- 0.16 i \\ 0 & -0.67 - 0.34 i & -1.10 + 0.16 i & 0.50 \end{array} }\right)$$

and

B = $$\left(\vphantom{ \begin{array}{cccc} 9.89 & 1.08 - 1.73 i & 0 &... ...2.65 & -0.33 + 2.24 i \\ 0 & 0 & -0.33 - 2.24 i & 2.17 \end{array} }\right.$$$$\begin{array}{cccc} 9.89 & 1.08 - 1.73 i & 0 & 0 \\ 1.08 + 1.... ...0.29 i & 2.65 & -0.33 + 2.24 i \\ 0 & 0 & -0.33 - 2.24 i & 2.17 \end{array}$$$$\left.\vphantom{ \begin{array}{cccc} 9.89 & 1.08 - 1.73 i & 0 &... ...2.65 & -0.33 + 2.24 i \\ 0 & 0 & -0.33 - 2.24 i & 2.17 \end{array} }\right)$$.

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