Program f01qkfe ! F01QKF Example Program Text ! Mark 24 Release. NAG Copyright 2012. ! .. Use Statements .. Use nag_library, Only: f01qjf, f01qkf, nag_wp ! .. Implicit None Statement .. Implicit None ! .. Parameters .. Integer, Parameter :: nin = 5, nout = 6 ! .. Local Scalars .. Integer :: i, ifail, lda, ldpt, m, n, nrowp ! .. Local Arrays .. Real (Kind=nag_wp), Allocatable :: a(:,:), pt(:,:), work(:), zeta(:) ! .. Executable Statements .. Write (nout,*) 'F01QKF Example Program Results' Write (nout,*) ! Skip heading in data file Read (nin,*) Read (nin,*) m, n lda = m ldpt = n Allocate (a(lda,n),pt(ldpt,n),work(n),zeta(n)) 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 f01qjf(m,n,a,lda,zeta,ifail) ! Copy array A into PT and form the n by n matrix conjg(P') pt(1:m,1:n) = a(1:m,1:n) nrowp = n ifail = 0 Call f01qkf('Separate',m,n,nrowp,pt,ldpt,zeta,work,ifail) Write (nout,*) 'Matrix P' Write (nout,99999) pt(1:nrowp,1:n) 99999 Format (5(1X,F8.4)) End Program f01qkfe