laswlq Interface

public interface laswlq

LASWLQ computes a blocked Tall-Skinny LQ factorization of a complex M-by-N matrix A for M <= N: A = ( L 0 ) * Q, where: Q is a n-by-N orthogonal matrix, stored on exit in an implicit form in the elements above the diagonal of the array A and in the elements of the array T; L is a lower-triangular M-by-M matrix stored on exit in the elements on and below the diagonal of the array A. 0 is a M-by-(N-M) zero matrix, if M < N, and is not stored.


Subroutines

public pure subroutine claswlq(m, n, mb, nb, a, lda, t, ldt, work, lwork, info)

Arguments

Type IntentOptional Attributes Name
integer(kind=ilp), intent(in) :: m
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: mb
integer(kind=ilp), intent(in) :: nb
complex(kind=sp), intent(inout) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
complex(kind=sp), intent(out) :: t(ldt,*)
integer(kind=ilp), intent(in) :: ldt
complex(kind=sp), intent(out) :: work(*)
integer(kind=ilp), intent(in) :: lwork
integer(kind=ilp), intent(out) :: info

public pure subroutine dlaswlq(m, n, mb, nb, a, lda, t, ldt, work, lwork, info)

Arguments

Type IntentOptional Attributes Name
integer(kind=ilp), intent(in) :: m
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: mb
integer(kind=ilp), intent(in) :: nb
real(kind=dp), intent(inout) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
real(kind=dp), intent(out) :: t(ldt,*)
integer(kind=ilp), intent(in) :: ldt
real(kind=dp), intent(out) :: work(*)
integer(kind=ilp), intent(in) :: lwork
integer(kind=ilp), intent(out) :: info

public pure subroutine slaswlq(m, n, mb, nb, a, lda, t, ldt, work, lwork, info)

Arguments

Type IntentOptional Attributes Name
integer(kind=ilp), intent(in) :: m
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: mb
integer(kind=ilp), intent(in) :: nb
real(kind=sp), intent(inout) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
real(kind=sp), intent(out) :: t(ldt,*)
integer(kind=ilp), intent(in) :: ldt
real(kind=sp), intent(out) :: work(*)
integer(kind=ilp), intent(in) :: lwork
integer(kind=ilp), intent(out) :: info

public pure subroutine zlaswlq(m, n, mb, nb, a, lda, t, ldt, work, lwork, info)

Arguments

Type IntentOptional Attributes Name
integer(kind=ilp), intent(in) :: m
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: mb
integer(kind=ilp), intent(in) :: nb
complex(kind=dp), intent(inout) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
complex(kind=dp), intent(out) :: t(ldt,*)
integer(kind=ilp), intent(in) :: ldt
complex(kind=dp), intent(out) :: work(*)
integer(kind=ilp), intent(in) :: lwork
integer(kind=ilp), intent(out) :: info

Module Procedures

public interface stdlib_claswlq()

Arguments

None

public interface stdlib_dlaswlq()

Arguments

None

public interface stdlib_slaswlq()

Arguments

None

public interface stdlib_zlaswlq()

Arguments

None