Program f01qgfe ! F01QGF Example Program Text ! Mark 24 Release. NAG Copyright 2012. ! .. Use Statements .. Use nag_library, Only: f01qgf, nag_wp, x04cbf ! .. Implicit None Statement .. Implicit None ! .. Parameters .. Integer, Parameter :: indent = 0, ncols = 80, nin = 5, & nout = 6 Character (1), Parameter :: diag = 'N', matrix = 'G', nolabel = & 'N' Character (4), Parameter :: form = 'F8.4' ! .. Local Scalars .. Integer :: i, ifail, lda, m, n Character (63) :: title ! .. Local Arrays .. Real (Kind=nag_wp), Allocatable :: a(:,:), zeta(:) Character (1) :: dummy(1) ! .. Executable Statements .. Write (nout,*) 'F01QGF Example Program Results' Write (nout,*) ! Skip heading in data file Read (nin,*) Read (nin,*) m, n lda = m Allocate (a(lda,n),zeta(m)) Read (nin,*)(a(i,1:n),i=1,m) ! ifail: behaviour on error exit ! =0 for hard exit, =1 for quiet-soft, =-1 for noisy-soft ifail = 0 ! Find the RQ factorization of A Call f01qgf(m,n,a,lda,zeta,ifail) Write (nout,*) 'RQ factorization of A' Write (nout,*) Write (nout,*) 'Vector ZETA' Write (nout,99999) zeta(1:m) Write (nout,*) Flush (nout) title = & 'Matrix A after factorization (R is in left-hand upper triangle)' ifail = 0 Call x04cbf(matrix,diag,m,n,a,lda,form,title,nolabel,dummy,nolabel, & dummy,ncols,indent,ifail) 99999 Format (5(1X,F8.4)) End Program f01qgfe