```    Program f04axfe

!     F04AXF Example Program Text

!     Mark 26.2 Release. NAG Copyright 2017.

!     .. Use Statements ..
Use nag_library, Only: f01brf, f04axf, nag_wp
!     .. Implicit None Statement ..
Implicit None
!     .. Parameters ..
Integer, Parameter               :: nin = 5, nout = 6
!     .. Local Scalars ..
Real (Kind=nag_wp)               :: resid, u
Integer                          :: i, ifail, licn, lirn, mtype, n, nz
Logical                          :: grow, lblock
!     .. Local Arrays ..
Real (Kind=nag_wp), Allocatable  :: a(:), rhs(:), w(:)
Integer, Allocatable             :: icn(:), ikeep(:,:), irn(:), iw(:,:)
Integer                          :: idisp(10)
Logical                          :: abort(4)
!     .. Executable Statements ..
Write (nout,*) 'F04AXF Example Program Results'
Write (nout,*)
!     Skip heading in data file
licn = 3*nz
lirn = 3*nz/2
Allocate (a(licn),rhs(n),w(n),icn(licn),ikeep(n,5),irn(lirn),iw(n,8))
u = 0.1E0_nag_wp
lblock = .True.
grow = .True.
abort(1) = .True.
abort(2) = .True.
abort(3) = .False.
abort(4) = .True.

!     ifail: behaviour on error exit
!             =0 for hard exit, =1 for quiet-soft, =-1 for noisy-soft
ifail = 0
!     Decomposition of sparse matrix
Call f01brf(n,nz,a,licn,irn,lirn,icn,u,ikeep,iw,w,lblock,grow,abort,     &
idisp,ifail)

If (grow) Then
Write (nout,*) 'On exit from F01BRF'
Write (nout,99999) 'Value of W(1) = ', w(1)
End If
mtype = 1

!     Approximate solution of sparse linear equations
Call f04axf(n,a,licn,icn,ikeep,rhs,w,mtype,idisp,resid)

Write (nout,*)
Write (nout,*) 'On exit from F04AXF'
Write (nout,*) ' Solution'
Write (nout,99998) rhs(1:n)

99999 Format (1X,A,F9.4)
99998 Format (1X,F9.4)
End Program f04axfe
```