fortran-lapack
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la_lapack::ormqr Interface Reference

ORMQR: overwrites the general real M-by-N matrix C with SIDE = 'L' SIDE = 'R' TRANS = 'N': Q * C C * Q TRANS = 'T': Q**T * C C * Q**T where Q is a real orthogonal matrix defined as the product of k elementary reflectors Q = H(1) H(2) . . . H(k) as returned by DGEQRF. Q is of order M if SIDE = 'L' and of order N if SIDE = 'R'. More...

Public Member Functions

pure subroutine dormqr (side, trans, m, n, k, a, lda, tau, c, ldc, work, lwork, info)
 
 la_dormqr
 
 la_qormqr
 
pure subroutine sormqr (side, trans, m, n, k, a, lda, tau, c, ldc, work, lwork, info)
 
 la_sormqr
 

Detailed Description

ORMQR: overwrites the general real M-by-N matrix C with SIDE = 'L' SIDE = 'R' TRANS = 'N': Q * C C * Q TRANS = 'T': Q**T * C C * Q**T where Q is a real orthogonal matrix defined as the product of k elementary reflectors Q = H(1) H(2) . . . H(k) as returned by DGEQRF. Q is of order M if SIDE = 'L' and of order N if SIDE = 'R'.

Member Function/Subroutine Documentation

◆ dormqr()

pure subroutine la_lapack::ormqr::dormqr ( character, intent(in)  side,
character, intent(in)  trans,
integer(ilp), intent(in)  m,
integer(ilp), intent(in)  n,
integer(ilp), intent(in)  k,
real(dp), dimension(lda,*), intent(inout)  a,
integer(ilp), intent(in)  lda,
real(dp), dimension(*), intent(in)  tau,
real(dp), dimension(ldc,*), intent(inout)  c,
integer(ilp), intent(in)  ldc,
real(dp), dimension(*), intent(out)  work,
integer(ilp), intent(in)  lwork,
integer(ilp), intent(out)  info 
)

◆ la_dormqr()

la_lapack::ormqr::la_dormqr

◆ la_qormqr()

la_lapack::ormqr::la_qormqr

◆ la_sormqr()

la_lapack::ormqr::la_sormqr

◆ sormqr()

pure subroutine la_lapack::ormqr::sormqr ( character, intent(in)  side,
character, intent(in)  trans,
integer(ilp), intent(in)  m,
integer(ilp), intent(in)  n,
integer(ilp), intent(in)  k,
real(sp), dimension(lda,*), intent(inout)  a,
integer(ilp), intent(in)  lda,
real(sp), dimension(*), intent(in)  tau,
real(sp), dimension(ldc,*), intent(inout)  c,
integer(ilp), intent(in)  ldc,
real(sp), dimension(*), intent(out)  work,
integer(ilp), intent(in)  lwork,
integer(ilp), intent(out)  info 
)

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