*     X03AAF Example Program Text
*     Mark 14 Revised. NAG Copyright 1989.
*     .. Parameters ..
      INTEGER          N
      PARAMETER        (N=3)
      INTEGER          NIN, NOUT
      PARAMETER        (NIN=5,NOUT=6)
*     .. Local Scalars ..
      DOUBLE PRECISION C1, C2, D1, D2
      INTEGER          I, IFAIL, ISIZEA, ISIZEB, ISTEPA, ISTEPB, J
      LOGICAL          SW
*     .. Local Arrays ..
      DOUBLE PRECISION A(N,N), B(N)
*     .. External Subroutines ..
      EXTERNAL         X03AAF
*     .. Executable Statements ..
      WRITE (NOUT,*) 'X03AAF Example Program Results'
*     Skip heading in data file
      READ (NIN,*)
      READ (NIN,*) ((A(I,J),J=1,N),I=1,N), (B(I),I=1,N)
      C1 = 1.0D0
      C2 = 0.0D0
      ISIZEA = N
      ISIZEB = N
      ISTEPA = 1
      ISTEPB = 1
      SW = .TRUE.
      IFAIL = 0
*
      CALL X03AAF(A(1,2),ISIZEA,B,ISIZEB,N,ISTEPA,ISTEPB,C1,C2,D1,D2,SW,
     +            IFAIL)
*
      WRITE (NOUT,*)
      WRITE (NOUT,99999) 'D1 = ', D1, ' D2 = ', D2
*
99999 FORMAT (1X,A,F4.1,A,F4.1)
      END