tbmv Interface

public interface tbmv

TBMV performs one of the matrix-vector operations x := Ax, or x := ATx, or x := A*Hx, where x is an n element vector and A is an n by n unit, or non-unit, upper or lower triangular band matrix, with ( k + 1 ) diagonals.


Subroutines

public pure subroutine ctbmv(uplo, trans, diag, n, k, a, lda, x, incx)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
character(len=1), intent(in) :: trans
character(len=1), intent(in) :: diag
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: k
complex(kind=sp), intent(in) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
complex(kind=sp), intent(inout) :: x(*)
integer(kind=ilp), intent(in) :: incx

public pure subroutine dtbmv(uplo, trans, diag, n, k, a, lda, x, incx)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
character(len=1), intent(in) :: trans
character(len=1), intent(in) :: diag
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: k
real(kind=dp), intent(in) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
real(kind=dp), intent(inout) :: x(*)
integer(kind=ilp), intent(in) :: incx

public pure subroutine stbmv(uplo, trans, diag, n, k, a, lda, x, incx)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
character(len=1), intent(in) :: trans
character(len=1), intent(in) :: diag
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: k
real(kind=sp), intent(in) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
real(kind=sp), intent(inout) :: x(*)
integer(kind=ilp), intent(in) :: incx

public pure subroutine ztbmv(uplo, trans, diag, n, k, a, lda, x, incx)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
character(len=1), intent(in) :: trans
character(len=1), intent(in) :: diag
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: k
complex(kind=dp), intent(in) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
complex(kind=dp), intent(inout) :: x(*)
integer(kind=ilp), intent(in) :: incx

Module Procedures

public pure subroutine stdlib_ctbmv(uplo, trans, diag, n, k, a, lda, x, incx)

CTBMV performs one of the matrix-vector operations x := Ax, or x := ATx, or x := A*Hx, where x is an n element vector and A is an n by n unit, or non-unit, upper or lower triangular band matrix, with ( k + 1 ) diagonals.

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
character(len=1), intent(in) :: trans
character(len=1), intent(in) :: diag
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: k
complex(kind=sp), intent(in) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
complex(kind=sp), intent(inout) :: x(*)
integer(kind=ilp), intent(in) :: incx

public pure subroutine stdlib_dtbmv(uplo, trans, diag, n, k, a, lda, x, incx)

DTBMV performs one of the matrix-vector operations x := Ax, or x := ATx, where x is an n element vector and A is an n by n unit, or non-unit, upper or lower triangular band matrix, with ( k + 1 ) diagonals.

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
character(len=1), intent(in) :: trans
character(len=1), intent(in) :: diag
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: k
real(kind=dp), intent(in) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
real(kind=dp), intent(inout) :: x(*)
integer(kind=ilp), intent(in) :: incx

public pure subroutine stdlib_stbmv(uplo, trans, diag, n, k, a, lda, x, incx)

STBMV performs one of the matrix-vector operations x := Ax, or x := ATx, where x is an n element vector and A is an n by n unit, or non-unit, upper or lower triangular band matrix, with ( k + 1 ) diagonals.

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
character(len=1), intent(in) :: trans
character(len=1), intent(in) :: diag
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: k
real(kind=sp), intent(in) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
real(kind=sp), intent(inout) :: x(*)
integer(kind=ilp), intent(in) :: incx

public pure subroutine stdlib_ztbmv(uplo, trans, diag, n, k, a, lda, x, incx)

ZTBMV performs one of the matrix-vector operations x := Ax, or x := ATx, or x := A*Hx, where x is an n element vector and A is an n by n unit, or non-unit, upper or lower triangular band matrix, with ( k + 1 ) diagonals.

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
character(len=1), intent(in) :: trans
character(len=1), intent(in) :: diag
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: k
complex(kind=dp), intent(in) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
complex(kind=dp), intent(inout) :: x(*)
integer(kind=ilp), intent(in) :: incx