hetrd_he2hb Interface

public interface hetrd_he2hb

HETRD_HE2HB reduces a complex Hermitian matrix A to complex Hermitian band-diagonal form AB by a unitary similarity transformation: Q**H * A * Q = AB.


Subroutines

public subroutine chetrd_he2hb(uplo, n, kd, a, lda, ab, ldab, tau, work, lwork, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: kd
complex(kind=sp), intent(inout) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
complex(kind=sp), intent(out) :: ab(ldab,*)
integer(kind=ilp), intent(in) :: ldab
complex(kind=sp), intent(out) :: tau(*)
complex(kind=sp), intent(out) :: work(*)
integer(kind=ilp), intent(in) :: lwork
integer(kind=ilp), intent(out) :: info

public subroutine zhetrd_he2hb(uplo, n, kd, a, lda, ab, ldab, tau, work, lwork, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: kd
complex(kind=dp), intent(inout) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
complex(kind=dp), intent(out) :: ab(ldab,*)
integer(kind=ilp), intent(in) :: ldab
complex(kind=dp), intent(out) :: tau(*)
complex(kind=dp), intent(out) :: work(*)
integer(kind=ilp), intent(in) :: lwork
integer(kind=ilp), intent(out) :: info

Module Procedures

public interface stdlib_chetrd_he2hb()

Arguments

None

public interface stdlib_zhetrd_he2hb()

Arguments

None