stev Interface

public interface stev

STEV computes all eigenvalues and, optionally, eigenvectors of a real symmetric tridiagonal matrix A.


Subroutines

public pure subroutine dstev(jobz, n, d, e, z, ldz, work, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: jobz
integer(kind=ilp), intent(in) :: n
real(kind=dp), intent(inout) :: d(*)
real(kind=dp), intent(inout) :: e(*)
real(kind=dp), intent(out) :: z(ldz,*)
integer(kind=ilp), intent(in) :: ldz
real(kind=dp), intent(out) :: work(*)
integer(kind=ilp), intent(out) :: info

public pure subroutine sstev(jobz, n, d, e, z, ldz, work, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: jobz
integer(kind=ilp), intent(in) :: n
real(kind=sp), intent(inout) :: d(*)
real(kind=sp), intent(inout) :: e(*)
real(kind=sp), intent(out) :: z(ldz,*)
integer(kind=ilp), intent(in) :: ldz
real(kind=sp), intent(out) :: work(*)
integer(kind=ilp), intent(out) :: info

Module Procedures

public interface stdlib_dstev()

Arguments

None

public interface stdlib_sstev()

Arguments

None