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la_lapack::orm2l Interface Reference

ORM2L: overwrites the general real m by n matrix C with Q * C if SIDE = 'L' and TRANS = 'N', or Q**T * C if SIDE = 'L' and TRANS = 'T', or C * Q if SIDE = 'R' and TRANS = 'N', or C * Q**T if SIDE = 'R' and TRANS = 'T', where Q is a real orthogonal matrix defined as the product of k elementary reflectors Q = H(k) . . . H(2) H(1) as returned by DGEQLF. Q is of order m if SIDE = 'L' and of order n if SIDE = 'R'. More...

Public Member Functions

pure subroutine dorm2l (side, trans, m, n, k, a, lda, tau, c, ldc, work, info)
 
 la_dorm2l
 
 la_qorm2l
 
pure subroutine sorm2l (side, trans, m, n, k, a, lda, tau, c, ldc, work, info)
 
 la_sorm2l
 

Detailed Description

ORM2L: overwrites the general real m by n matrix C with Q * C if SIDE = 'L' and TRANS = 'N', or Q**T * C if SIDE = 'L' and TRANS = 'T', or C * Q if SIDE = 'R' and TRANS = 'N', or C * Q**T if SIDE = 'R' and TRANS = 'T', where Q is a real orthogonal matrix defined as the product of k elementary reflectors Q = H(k) . . . H(2) H(1) as returned by DGEQLF. Q is of order m if SIDE = 'L' and of order n if SIDE = 'R'.

Member Function/Subroutine Documentation

◆ dorm2l()

pure subroutine la_lapack::orm2l::dorm2l ( 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(out) info )

◆ la_dorm2l()

la_lapack::orm2l::la_dorm2l

◆ la_qorm2l()

la_lapack::orm2l::la_qorm2l

◆ la_sorm2l()

la_lapack::orm2l::la_sorm2l

◆ sorm2l()

pure subroutine la_lapack::orm2l::sorm2l ( 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(out) info )

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