HBTRD: reduces a complex Hermitian band matrix A to real symmetric tridiagonal form T by a unitary similarity transformation: Q**H * A * Q = T. More...

Public Member Functions
pure subroutine	chbtrd (vect, uplo, n, kd, ab, ldab, d, e, q, ldq, work, info)

	la_chbtrd

	la_whbtrd

pure subroutine	zhbtrd (vect, uplo, n, kd, ab, ldab, d, e, q, ldq, work, info)

	la_zhbtrd

Detailed Description

HBTRD: reduces a complex Hermitian band matrix A to real symmetric tridiagonal form T by a unitary similarity transformation: Q**H * A * Q = T.

Member Function/Subroutine Documentation

◆ chbtrd()

pure subroutine la_lapack::hbtrd::chbtrd	(	character, intent(in)	vect,
		character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	kd,
		complex(sp), dimension(ldab,*), intent(inout)	ab,
		integer(ilp), intent(in)	ldab,
		real(sp), dimension(*), intent(out)	d,
		real(sp), dimension(*), intent(out)	e,
		complex(sp), dimension(ldq,*), intent(inout)	q,
		integer(ilp), intent(in)	ldq,
		complex(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info )

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◆ la_chbtrd()

la_lapack::hbtrd::la_chbtrd

◆ la_whbtrd()

la_lapack::hbtrd::la_whbtrd

◆ la_zhbtrd()

la_lapack::hbtrd::la_zhbtrd

◆ zhbtrd()

pure subroutine la_lapack::hbtrd::zhbtrd	(	character, intent(in)	vect,
		character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	kd,
		complex(dp), dimension(ldab,*), intent(inout)	ab,
		integer(ilp), intent(in)	ldab,
		real(dp), dimension(*), intent(out)	d,
		real(dp), dimension(*), intent(out)	e,
		complex(dp), dimension(ldq,*), intent(inout)	q,
		integer(ilp), intent(in)	ldq,
		complex(dp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info )