Program g13dxfe ! G13DXF Example Program Text ! Mark 24 Release. NAG Copyright 2012. ! .. Use Statements .. Use nag_library, Only: g13dxf, nag_wp ! .. Implicit None Statement .. Implicit None ! .. Parameters .. Integer, Parameter :: nin = 5, nout = 6 ! .. Local Scalars .. Integer :: i, ifail, ip, k, kip, npar ! .. Local Arrays .. Real (Kind=nag_wp), Allocatable :: par(:), ri(:), rmod(:), rr(:), work(:) Integer, Allocatable :: iwork(:) ! .. Executable Statements .. Write (nout,*) 'G13DXF Example Program Results' Write (nout,*) ! Skip heading in data file Read (nin,*) ! Read in problem size Read (nin,*) k, ip kip = k*ip npar = k*kip Allocate (par(npar),rr(kip),ri(kip),rmod(kip),work(ip*npar),iwork(kip)) ! Read the AR (or MA) parameters Read (nin,*) par(1:npar) ! Calculate zeros ifail = 0 Call g13dxf(k,ip,par,rr,ri,rmod,work,iwork,ifail) ! Display results Write (nout,*) ' Eigenvalues Moduli' Write (nout,*) ' ----------- ------' Do i = 1, k*ip If (ri(i)>=0.0E0_nag_wp) Then Write (nout,99999) rr(i), ri(i), rmod(i) Else Write (nout,99998) rr(i), -ri(i), rmod(i) End If End Do 99999 Format (' ',F10.3,' + ',F6.3,' i ',F8.3) 99998 Format (' ',F10.3,' - ',F6.3,' i ',F8.3) End Program g13dxfe