ZHPEV Example

To find all the eigenvalues of the Hermitian matrix

A = $$\left(\vphantom{ \begin{array}{cccc} 1 & 2 - i & 3 - i & 4 - i ... ...i & 3 + 2i & 3 & 4 - 3i \\ 4 + i & 4 + 2i & 4 + 3i & 4 \end{array} }\right.$$$$\begin{array}{cccc} 1 & 2 - i & 3 - i & 4 - i \\ 2 + i & 2 & ... ...\ 3 + i & 3 + 2i & 3 & 4 - 3i \\ 4 + i & 4 + 2i & 4 + 3i & 4 \end{array}$$$$\left.\vphantom{ \begin{array}{cccc} 1 & 2 - i & 3 - i & 4 - i ... ...i & 3 + 2i & 3 & 4 - 3i \\ 4 + i & 4 + 2i & 4 + 3i & 4 \end{array} }\right)$$,

together with an approximate error bound for the computed eigenvalues.

Example program
Example data
Example results