Computes the eigenvalue-eigenvector decomposition of an ordinary or generalized eigenvalue problem.

Computes the performance index for a complex eigensystem.

Computes the performance index for a complex Hermitian eigensystem.

Computes the performance index for a real eigensystem.

Computes the performance index for a real symmetric eigensystem in band symmetric storage mode.

Computes the performance index for a real symmetric eigensystem.

Prints error messages that are generated by IMSL routines using EPACK.

Sets error handler default print and stop actions.

Computes the largest or smallest eigenvalues of a complex Hermitian matrix.

Computes the largest or smallest eigenvalues of a real symmetric matrix in band symmetric storage mode.

Computes the largest or smallest eigenvalues of a real symmetric matrix.

Computes the eigenvalues in a given range of a complex Hermitian matrix.

Computes the eigenvalues in a given interval of a real symmetric matrix stored in band symmetric storage mode.

Computes selected eigenvalues of a real symmetric matrix.

Computes all of the eigenvalues and eigenvectors of a complex matrix.

Computes all of the eigenvalues and eigenvectors of a complex upper Hessenberg matrix.

Computes all of the eigenvalues and eigenvectors of a complex Hermitian matrix.

Computes all of the eigenvalues and eigenvectors of a real matrix.

Computes all of the eigenvalues and eigenvectors of a real upper Hessenberg matrix.

Computes all of the eigenvalues and eigenvectors of a real symmetric matrix in band symmetric storage mode.

Computes all of the eigenvalues and eigenvectors of a real symmetric matrix.

Computes the largest or smallest eigenvalues and the corresponding eigenvectors of a complex Hermitian matrix.

Computes the largest or smallest eigenvalues and the corresponding eigenvectors of a real symmetric matrix in band symmetric storage mode.

Computes the largest or smallest eigenvalues and the corresponding eigenvectors of a real symmetric matrix.

Computes the eigenvalues in a given range and the corresponding eigenvectors of a complex Hermitian matrix.

Computes the eigenvalues in a given interval and the corresponding eigenvectors of a real symmetric matrix stored in band symmetric storage mode.

Computes selected eigenvalues and eigenvectors of a real symmetric matrix.

Computes all of the eigenvalues of a complex matrix.

Computes all of the eigenvalues of a complex upper Hessenberg matrix.

Computes all of the eigenvalues of a complex Hermitian matrix.

Computes all of the eigenvalues of a real matrix.

Computes all of the eigenvalues of a real upper Hessenberg matrix.

Computes all of the eigenvalues of a real symmetric matrix in band symmetric storage mode.

Computes all of the eigenvalues of a real symmetric matrix.

Creates a rank-2 square array whose diagonals are all the value one.