SPTRD: reduces a real symmetric matrix A stored in packed form to symmetric tridiagonal form T by an orthogonal similarity transformation: Q**T * A * Q = T. More...

Public Member Functions
pure subroutine	dsptrd (uplo, n, ap, d, e, tau, info)

	la_dsptrd

	la_qsptrd

pure subroutine	ssptrd (uplo, n, ap, d, e, tau, info)

	la_ssptrd

Detailed Description

SPTRD: reduces a real symmetric matrix A stored in packed form to symmetric tridiagonal form T by an orthogonal similarity transformation: Q**T * A * Q = T.

Member Function/Subroutine Documentation

◆ dsptrd()

pure subroutine la_lapack::sptrd::dsptrd	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		real(dp), dimension(*), intent(inout)	ap,
		real(dp), dimension(*), intent(out)	d,
		real(dp), dimension(*), intent(out)	e,
		real(dp), dimension(*), intent(out)	tau,
		integer(ilp), intent(out)	info )

◆ la_dsptrd()

la_lapack::sptrd::la_dsptrd

◆ la_qsptrd()

la_lapack::sptrd::la_qsptrd

◆ la_ssptrd()

la_lapack::sptrd::la_ssptrd

◆ ssptrd()

pure subroutine la_lapack::sptrd::ssptrd	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		real(sp), dimension(*), intent(inout)	ap,
		real(sp), dimension(*), intent(out)	d,
		real(sp), dimension(*), intent(out)	e,
		real(sp), dimension(*), intent(out)	tau,
		integer(ilp), intent(out)	info )

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

la_lapack.f90