Program f01rkfe ! F01RKF Example Program Text ! Mark 24 Release. NAG Copyright 2012. ! .. Use Statements .. Use nag_library, Only: f01rjf, f01rkf, nag_wp ! .. Implicit None Statement .. Implicit None ! .. Parameters .. Integer, Parameter :: nin = 5, nout = 6 ! .. Local Scalars .. Integer :: i, ifail, lda, ldph, m, n, nrowp ! .. Local Arrays .. Complex (Kind=nag_wp), Allocatable :: a(:,:), ph(:,:), theta(:), work(:) ! .. Intrinsic Procedures .. Intrinsic :: conjg ! .. Executable Statements .. Write (nout,*) 'F01RKF Example Program Results' Write (nout,*) ! Skip heading in data file Read (nin,*) Read (nin,*) m, n lda = m ldph = n Allocate (a(lda,n),ph(ldph,n),theta(n),work(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 f01rjf(m,n,a,lda,theta,ifail) ! Copy array A into PH and form the n by n matrix conjg(P') ph(1:m,1:n) = a(1:m,1:n) nrowp = n ifail = 0 Call f01rkf('Separate',m,n,nrowp,ph,ldph,theta,work,ifail) Write (nout,*) 'Matrix P' Write (nout,99999)(conjg(ph(1:nrowp,i)),i=1,n) 99999 Format (5(' (',F6.3,',',F6.3,')':)) End Program f01rkfe