Program e02gcfe ! E02GCF Example Program Text ! Mark 24 Release. NAG Copyright 2012. ! .. Use Statements .. Use nag_library, Only: e02gcf, nag_wp ! .. Implicit None Statement .. Implicit None ! .. Parameters .. Integer, Parameter :: n = 3, nin = 5, nout = 6 ! .. Local Scalars .. Real (Kind=nag_wp) :: relerr, resmax, t, tol Integer :: i, ifail, irank, iter, lda, m, sda ! .. Local Arrays .. Real (Kind=nag_wp), Allocatable :: a(:,:), b(:), x(:) ! .. Intrinsic Procedures .. Intrinsic :: exp ! .. Executable Statements .. Write (nout,*) 'E02GCF Example Program Results' ! Skip heading in data file Read (nin,*) Read (nin,*) m lda = n + 3 sda = m + 1 Allocate (a(lda,sda),b(m),x(n)) Do i = 1, m Read (nin,*) t, b(i) a(1,i) = exp(t) a(2,i) = exp(-t) a(3,i) = 1.0E0_nag_wp End Do tol = 0.0E0_nag_wp relerr = 0.0E0_nag_wp ifail = -1 Call e02gcf(m,n,sda,lda,a,b,tol,relerr,x,resmax,irank,iter,ifail) Select Case (ifail) Case (0,1) Write (nout,*) Write (nout,99999) 'RESMAX = ', resmax, ' Rank = ', irank, & ' Iterations = ', iter, ' IFAIL =', ifail Write (nout,*) Write (nout,*) 'Solution' Write (nout,99998) x(1:n) End Select 99999 Format (1X,A,E10.2,3(A,I5)) 99998 Format (1X,6F10.4) End Program e02gcfe