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## Arguments

A
(input/output) REAL or COMPLEX square array, shape .
On entry, the matrix .
If UPLO = 'U', the upper triangular part of contains the upper triangular part of the matrix . If UPLO = 'L', the lower triangular part of contains the lower triangular part of the matrix .
On exit:
If JOBZ = 'V', then the columns of A contain the orthonormal eigenvectors of the matrix in the order of the eigenvalues.
If JOBZ = 'N', then the upper triangle (if UPLO = 'U') or the lower triangle (if UPLO = 'L') of A, including the diagonal, is destroyed.

W
(output) REAL array, shape with (W) (A,1).
The eigenvalues in ascending order.

JOBZ
Optional (input) CHARACTER(LEN=1).

Default value: 'N'.

UPLO
Optional (input) CHARACTER(LEN=1).

Default value: 'U'.

INFO
Optional (output) INTEGER.

If is not present and an error occurs, then the program is terminated with an error message.
References: [1] and [17,9,20].

Next: Examples Up: Standard Symmetric Eigenvalue Problems Previous: Purpose   Contents   Index
Susan Blackford 2001-08-19