*     F08KEF Example Program Text
*     Mark 16 Release. NAG Copyright 1992.
*     .. Parameters ..
      INTEGER          NIN, NOUT
      PARAMETER        (NIN=5,NOUT=6)
      INTEGER          MMAX, NMAX, LDA, LWORK
      PARAMETER        (MMAX=8,NMAX=8,LDA=MMAX,LWORK=64*(MMAX+NMAX))
*     .. Local Scalars ..
      INTEGER          I, INFO, J, M, N
*     .. Local Arrays ..
      DOUBLE PRECISION A(LDA,NMAX), D(NMAX), E(NMAX-1), TAUP(NMAX),
     +                 TAUQ(NMAX), WORK(LWORK)
*     .. External Subroutines ..
      EXTERNAL         DGEBRD
*     .. Intrinsic Functions ..
      INTRINSIC        MIN
*     .. Executable Statements ..
      WRITE (NOUT,*) 'F08KEF Example Program Results'
*     Skip heading in data file
      READ (NIN,*)
      READ (NIN,*) M, N
      IF (M.LE.MMAX .AND. N.LE.NMAX) THEN
*
*        Read A from data file
*
         READ (NIN,*) ((A(I,J),J=1,N),I=1,M)
*
*        Reduce A to bidiagonal form
*
         CALL DGEBRD(M,N,A,LDA,D,E,TAUQ,TAUP,WORK,LWORK,INFO)
*
*        Print bidiagonal form
*
         WRITE (NOUT,*)
         WRITE (NOUT,*) 'Diagonal'
         WRITE (NOUT,99999) (D(I),I=1,MIN(M,N))
         IF (M.GE.N) THEN
            WRITE (NOUT,*) 'Super-diagonal'
         ELSE
            WRITE (NOUT,*) 'Sub-diagonal'
         END IF
         WRITE (NOUT,99999) (E(I),I=1,MIN(M,N)-1)
      END IF
*
99999 FORMAT (1X,8F9.4)
      END