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* AB13DD EXAMPLE PROGRAM TEXT
*
* .. Parameters ..
INTEGER NIN, NOUT
PARAMETER ( NIN = 5, NOUT = 6 )
INTEGER NMAX, MMAX, PMAX
PARAMETER ( NMAX = 10, MMAX = 10, PMAX = 10 )
INTEGER LDA, LDB, LDC, LDD, LDE
PARAMETER ( LDA = NMAX, LDB = NMAX, LDC = PMAX,
$ LDD = PMAX, LDE = NMAX )
INTEGER LIWORK
PARAMETER ( LIWORK = NMAX )
INTEGER LCWORK
PARAMETER ( LCWORK = ( NMAX + MMAX )*( NMAX + PMAX ) +
$ 2*MIN( PMAX, MMAX ) +
$ MAX( PMAX, MMAX ) )
INTEGER LDWORK
PARAMETER ( LDWORK = 15*NMAX*NMAX + PMAX*PMAX + MMAX*MMAX +
$ ( 6*NMAX + 3 )*( PMAX + MMAX ) +
$ 4*PMAX*MMAX + NMAX*MMAX + 22*NMAX +
$ 7*MIN( PMAX, MMAX ) )
DOUBLE PRECISION ZERO
PARAMETER ( ZERO = 0.0D+0 )
* .. Local Scalars ..
DOUBLE PRECISION TOL
INTEGER I, INFO, J, M, N, P
CHARACTER DICO, EQUIL, JOBD, JOBE
* .. Local Arrays ..
INTEGER IWORK( LIWORK )
DOUBLE PRECISION A( LDA, NMAX ), B( LDB, MMAX ), C( LDC, NMAX ),
$ D( LDD, MMAX ), DWORK( LDWORK ), E( LDE, NMAX ),
$ FPEAK( 2 ), GPEAK( 2 )
COMPLEX*16 CWORK( LCWORK )
* .. External Functions ..
LOGICAL LSAME
EXTERNAL LSAME
* .. External Subroutines ..
EXTERNAL AB13DD
* .. Intrinsic Functions ..
INTRINSIC MAX, MIN
* .. Executable Statements ..
*
WRITE ( NOUT, FMT = 99999 )
* Skip the heading in the data file and read the data.
READ ( NIN, FMT = '()' )
READ ( NIN, FMT = * ) N, M, P, FPEAK, TOL, DICO, JOBE, EQUIL, JOBD
IF ( N.LT.0 .OR. N.GT.NMAX ) THEN
WRITE ( NOUT, FMT = 99994 ) N
ELSE IF ( M.LT.0 .OR. M.GT.MMAX ) THEN
WRITE ( NOUT, FMT = 99993 ) M
ELSE IF ( P.LT.0 .OR. P.GT.PMAX ) THEN
WRITE ( NOUT, FMT = 99992 ) P
ELSE
READ ( NIN, FMT = * ) ( ( A(I,J), J = 1,N ), I = 1,N )
IF ( LSAME( JOBE, 'G' ) )
$ READ ( NIN, FMT = * ) ( ( E(I,J), J = 1,N ), I = 1,N )
READ ( NIN, FMT = * ) ( ( B(I,J), J = 1,M ), I = 1,N )
READ ( NIN, FMT = * ) ( ( C(I,J), J = 1,N ), I = 1,P )
IF ( LSAME( JOBD, 'D' ) )
$ READ ( NIN, FMT = * ) ( ( D(I,J), J = 1,M ), I = 1,P )
* Computing the Linf norm.
CALL AB13DD( DICO, JOBE, EQUIL, JOBD, N, M, P, FPEAK, A, LDA,
$ E, LDE, B, LDB, C, LDC, D, LDD, GPEAK, TOL, IWORK,
$ DWORK, LDWORK, CWORK, LCWORK, INFO )
*
IF ( INFO.EQ.0 ) THEN
IF ( GPEAK( 2 ).EQ.ZERO ) THEN
WRITE ( NOUT, FMT = 99991 )
ELSE
WRITE ( NOUT, FMT = 99997 )
WRITE ( NOUT, FMT = 99995 ) GPEAK( 1 )
END IF
IF ( FPEAK( 2 ).EQ.ZERO ) THEN
WRITE ( NOUT, FMT = 99990 )
ELSE
WRITE ( NOUT, FMT = 99996 )
WRITE ( NOUT, FMT = 99995 ) FPEAK( 1 )
END IF
ELSE
WRITE( NOUT, FMT = 99998 ) INFO
END IF
END IF
STOP
*
99999 FORMAT (' AB13DD EXAMPLE PROGRAM RESULTS',/1X)
99998 FORMAT (/' INFO on exit from AB13DD =',I2)
99997 FORMAT (/' The L_infty norm of the system is'/)
99996 FORMAT (/' The peak frequency is'/)
99995 FORMAT (D17.10)
99994 FORMAT (/' N is out of range.',/' N = ',I5)
99993 FORMAT (/' M is out of range.',/' M = ',I5)
99992 FORMAT (/' P is out of range.',/' P = ',I5)
99991 FORMAT (/' The L_infty norm of the system is infinite')
99990 FORMAT (/' The peak frequency is infinite'/)
END
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