SUBROUTINE DSPEV( JOBZ, UPLO, N, A, W, Z, LDZ, WORK, INFO) CHARACTER * 1 JOBZ, UPLO INTEGER N, LDZ, INFO DOUBLE PRECISION A(*), W(*), Z(LDZ,*), WORK(*) SUBROUTINE DSPEV_64( JOBZ, UPLO, N, A, W, Z, LDZ, WORK, INFO) CHARACTER * 1 JOBZ, UPLO INTEGER*8 N, LDZ, INFO DOUBLE PRECISION A(*), W(*), Z(LDZ,*), WORK(*)
SUBROUTINE SPEV( JOBZ, UPLO, [N], A, W, Z, [LDZ], [WORK], [INFO]) CHARACTER(LEN=1) :: JOBZ, UPLO INTEGER :: N, LDZ, INFO REAL(8), DIMENSION(:) :: A, W, WORK REAL(8), DIMENSION(:,:) :: Z SUBROUTINE SPEV_64( JOBZ, UPLO, [N], A, W, Z, [LDZ], [WORK], [INFO]) CHARACTER(LEN=1) :: JOBZ, UPLO INTEGER(8) :: N, LDZ, INFO REAL(8), DIMENSION(:) :: A, W, WORK REAL(8), DIMENSION(:,:) :: Z
void dspev(char jobz, char uplo, int n, double *a, double *w, double *z, int ldz, int *info);
void dspev_64(char jobz, char uplo, long n, double *a, double *w, double *z, long ldz, long *info);
On exit, A is overwritten by values generated during the reduction to tridiagonal form. If UPLO = 'U', the diagonal and first superdiagonal of the tridiagonal matrix T overwrite the corresponding elements of A, and if UPLO = 'L', the diagonal and first subdiagonal of T overwrite the corresponding elements of A.