*     F11MLF Example Program Text
*     Mark 21 Release. NAG Copyright 2004.
*     .. Parameters ..
      INTEGER          NIN, NOUT
      PARAMETER        (NIN=5,NOUT=6)
      INTEGER          LA, NMAX
      PARAMETER        (LA=10000,NMAX=1000)
*     .. Local Scalars ..
      DOUBLE PRECISION ANORM
      INTEGER          I, IFAIL, N, NNZ
      CHARACTER        NORM
*     .. Local Arrays ..
      DOUBLE PRECISION A(LA)
      INTEGER          ICOLZP(NMAX+1), IROWIX(LA)
*     .. External Subroutines ..
      EXTERNAL         F11MLF
*     .. Executable Statements ..
      WRITE (NOUT,*) 'F11MLF Example Program Results'
*     Skip heading in data file
      READ (NIN,*)
*
*     Read order of matrix and number of right hand sides
*
      READ (NIN,*) N
      IF (N.LE.NMAX) THEN
*
*        Read the matrix A
*
         DO 20 I = 1, N + 1
            READ (NIN,*) ICOLZP(I)
   20    CONTINUE
         NNZ = ICOLZP(N+1) - 1
         DO 40 I = 1, NNZ
            READ (NIN,*) A(I), IROWIX(I)
   40    CONTINUE
*
*        Calculate 1-norm
*
         NORM = '1'
         IFAIL = 0
         CALL F11MLF(NORM,ANORM,N,ICOLZP,IROWIX,A,IFAIL)
*
*        Output norm
*
         WRITE (NOUT,*)
         WRITE (NOUT,*) 'One-norm'
         WRITE (NOUT,'(F7.3)') ANORM
*
*        Calculate M-norm
*
         NORM = 'M'
         IFAIL = 0
         CALL F11MLF(NORM,ANORM,N,ICOLZP,IROWIX,A,IFAIL)
*
*        Output norm
*
         WRITE (NOUT,*)
         WRITE (NOUT,*) 'Max'
         WRITE (NOUT,'(F7.3)') ANORM
*
*        Calculate I-norm
*
         NORM = 'I'
         IFAIL = 0
         CALL F11MLF(NORM,ANORM,N,ICOLZP,IROWIX,A,IFAIL)
*
*        Output norm
*
         WRITE (NOUT,*)
         WRITE (NOUT,*) 'Infinity-norm'
         WRITE (NOUT,'(F7.3)') ANORM
*
      END IF
      END