la_lapack::sbtrd Interface Reference

SBTRD: reduces a real symmetric band matrix A to symmetric tridiagonal form T by an orthogonal similarity transformation: Q**T * A * Q = T. More...

Public Member Functions
pure subroutine	dsbtrd (vect, uplo, n, kd, ab, ldab, d, e, q, ldq, work, info)
	la_dsbtrd
	la_qsbtrd
pure subroutine	ssbtrd (vect, uplo, n, kd, ab, ldab, d, e, q, ldq, work, info)
	la_ssbtrd

Detailed Description

SBTRD: reduces a real symmetric band matrix A to symmetric tridiagonal form T by an orthogonal similarity transformation: Q**T * A * Q = T.

Member Function/Subroutine Documentation

dsbtrd()

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

la_dsbtrd()

la_lapack::sbtrd::la_dsbtrd

la_qsbtrd()

la_lapack::sbtrd::la_qsbtrd

la_ssbtrd()

la_lapack::sbtrd::la_ssbtrd

ssbtrd()

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

---

The documentation for this interface was generated from the following file:

• la_lapack.f90