gttrs Interface

public interface gttrs

GTTRS solves one of the systems of equations A * X = B, AT * X = B, or AH * X = B, with a tridiagonal matrix A using the LU factorization computed by CGTTRF.

Subroutines

public pure subroutine cgttrs(trans, n, nrhs, dl, d, du, du2, ipiv, b, ldb, info)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	trans
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	nrhs
complex(kind=sp),	intent(in)			::	dl(*)
complex(kind=sp),	intent(in)			::	d(*)
complex(kind=sp),	intent(in)			::	du(*)
complex(kind=sp),	intent(in)			::	du2(*)
integer(kind=ilp),	intent(in)			::	ipiv(*)
complex(kind=sp),	intent(inout)			::	b(ldb,*)
integer(kind=ilp),	intent(in)			::	ldb
integer(kind=ilp),	intent(out)			::	info

public pure subroutine dgttrs(trans, n, nrhs, dl, d, du, du2, ipiv, b, ldb, info)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	trans
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	nrhs
real(kind=dp),	intent(in)			::	dl(*)
real(kind=dp),	intent(in)			::	d(*)
real(kind=dp),	intent(in)			::	du(*)
real(kind=dp),	intent(in)			::	du2(*)
integer(kind=ilp),	intent(in)			::	ipiv(*)
real(kind=dp),	intent(inout)			::	b(ldb,*)
integer(kind=ilp),	intent(in)			::	ldb
integer(kind=ilp),	intent(out)			::	info

public pure subroutine sgttrs(trans, n, nrhs, dl, d, du, du2, ipiv, b, ldb, info)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	trans
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	nrhs
real(kind=sp),	intent(in)			::	dl(*)
real(kind=sp),	intent(in)			::	d(*)
real(kind=sp),	intent(in)			::	du(*)
real(kind=sp),	intent(in)			::	du2(*)
integer(kind=ilp),	intent(in)			::	ipiv(*)
real(kind=sp),	intent(inout)			::	b(ldb,*)
integer(kind=ilp),	intent(in)			::	ldb
integer(kind=ilp),	intent(out)			::	info

public pure subroutine zgttrs(trans, n, nrhs, dl, d, du, du2, ipiv, b, ldb, info)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	trans
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	nrhs
complex(kind=dp),	intent(in)			::	dl(*)
complex(kind=dp),	intent(in)			::	d(*)
complex(kind=dp),	intent(in)			::	du(*)
complex(kind=dp),	intent(in)			::	du2(*)
integer(kind=ilp),	intent(in)			::	ipiv(*)
complex(kind=dp),	intent(inout)			::	b(ldb,*)
integer(kind=ilp),	intent(in)			::	ldb
integer(kind=ilp),	intent(out)			::	info

Module Procedures

public interface stdlib_cgttrs()

Arguments

None

public interface stdlib_dgttrs()

Arguments

None

public interface stdlib_sgttrs()

Arguments

None

public interface stdlib_zgttrs()

Arguments

None