la_lapack::gttrf Interface Reference

GTTRF: computes an LU factorization of a complex tridiagonal matrix A using elimination with partial pivoting and row interchanges. The factorization has the form A = L * U where L is a product of permutation and unit lower bidiagonal matrices and U is upper triangular with nonzeros in only the main diagonal and first two superdiagonals. More...

Public Member Functions
pure subroutine	cgttrf (n, dl, d, du, du2, ipiv, info)
	la_cgttrf
pure subroutine	dgttrf (n, dl, d, du, du2, ipiv, info)
	la_dgttrf
	la_qgttrf
pure subroutine	sgttrf (n, dl, d, du, du2, ipiv, info)
	la_sgttrf
	la_wgttrf
pure subroutine	zgttrf (n, dl, d, du, du2, ipiv, info)
	la_zgttrf

Detailed Description

GTTRF: computes an LU factorization of a complex tridiagonal matrix A using elimination with partial pivoting and row interchanges. The factorization has the form A = L * U where L is a product of permutation and unit lower bidiagonal matrices and U is upper triangular with nonzeros in only the main diagonal and first two superdiagonals.

Member Function/Subroutine Documentation

cgttrf()

pure subroutine la_lapack::gttrf::cgttrf	(	integer(ilp), intent(in)	n,
		complex(sp), dimension(*), intent(inout)	dl,
		complex(sp), dimension(*), intent(inout)	d,
		complex(sp), dimension(*), intent(inout)	du,
		complex(sp), dimension(*), intent(out)	du2,
		integer(ilp), dimension(*), intent(out)	ipiv,
		integer(ilp), intent(out)	info
	)

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dgttrf()

pure subroutine la_lapack::gttrf::dgttrf	(	integer(ilp), intent(in)	n,
		real(dp), dimension(*), intent(inout)	dl,
		real(dp), dimension(*), intent(inout)	d,
		real(dp), dimension(*), intent(inout)	du,
		real(dp), dimension(*), intent(out)	du2,
		integer(ilp), dimension(*), intent(out)	ipiv,
		integer(ilp), intent(out)	info
	)

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la_cgttrf()

la_lapack::gttrf::la_cgttrf

la_dgttrf()

la_lapack::gttrf::la_dgttrf

la_qgttrf()

la_lapack::gttrf::la_qgttrf

la_sgttrf()

la_lapack::gttrf::la_sgttrf

la_wgttrf()

la_lapack::gttrf::la_wgttrf

la_zgttrf()

la_lapack::gttrf::la_zgttrf

sgttrf()

pure subroutine la_lapack::gttrf::sgttrf	(	integer(ilp), intent(in)	n,
		real(sp), dimension(*), intent(inout)	dl,
		real(sp), dimension(*), intent(inout)	d,
		real(sp), dimension(*), intent(inout)	du,
		real(sp), dimension(*), intent(out)	du2,
		integer(ilp), dimension(*), intent(out)	ipiv,
		integer(ilp), intent(out)	info
	)

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zgttrf()

pure subroutine la_lapack::gttrf::zgttrf	(	integer(ilp), intent(in)	n,
		complex(dp), dimension(*), intent(inout)	dl,
		complex(dp), dimension(*), intent(inout)	d,
		complex(dp), dimension(*), intent(inout)	du,
		complex(dp), dimension(*), intent(out)	du2,
		integer(ilp), dimension(*), intent(out)	ipiv,
		integer(ilp), intent(out)	info
	)

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

• la_lapack.f90