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* TG01ID EXAMPLE PROGRAM TEXT
*
* .. Parameters ..
INTEGER NIN, NOUT
PARAMETER ( NIN = 5, NOUT = 6 )
INTEGER LMAX, NMAX, MMAX, PMAX
PARAMETER ( LMAX = 20, NMAX = 20, MMAX = 20, PMAX = 20 )
INTEGER MPMX
PARAMETER ( MPMX = MAX( MMAX, PMAX ) )
INTEGER LDA, LDB, LDC, LDE, LDQ, LDZ
PARAMETER ( LDA = LMAX, LDB = LMAX, LDC = MAX(MMAX,PMAX),
$ LDE = LMAX, LDQ = LMAX, LDZ = NMAX )
INTEGER LDWORK
PARAMETER ( LDWORK = MAX( 1, NMAX, 2*PMAX ) )
* .. Local Scalars ..
CHARACTER*1 COMPQ, COMPZ, JOBOBS
INTEGER I, INFO, J, M, N, NOBSV, NIUOBS, NLBLCK, P
DOUBLE PRECISION TOL
* .. Local Arrays ..
INTEGER IWORK(MMAX), CTAU(NMAX)
DOUBLE PRECISION A(LDA,NMAX), B(LDB,MPMX), C(LDC,NMAX),
$ DWORK(LDWORK), E(LDE,NMAX), Q(LDQ,LMAX),
$ Z(LDZ,NMAX)
* .. External Subroutines ..
EXTERNAL TG01ID
* .. Intrinsic Functions ..
INTRINSIC MAX
* .. 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, TOL, JOBOBS
COMPQ = 'I'
COMPZ = 'I'
IF ( N.LT.0 .OR. N.GT.NMAX ) THEN
WRITE ( NOUT, FMT = 99988 ) N
ELSE
READ ( NIN, FMT = * ) ( ( A(I,J), J = 1,N ), I = 1,N )
READ ( NIN, FMT = * ) ( ( E(I,J), J = 1,N ), I = 1,N )
IF ( M.LT.0 .OR. M.GT.MMAX ) THEN
WRITE ( NOUT, FMT = 99987 ) M
ELSE
READ ( NIN, FMT = * ) ( ( B(I,J), J = 1,M ), I = 1,N )
IF ( P.LT.0 .OR. P.GT.PMAX ) THEN
WRITE ( NOUT, FMT = 99986 ) P
ELSE
READ ( NIN, FMT = * ) ( ( C(I,J), J = 1,N ), I = 1,P )
* Find the transformed descriptor system (A-lambda E,B,C).
CALL TG01ID( JOBOBS, COMPQ, COMPZ, N, M, P, A, LDA,
$ E, LDE, B, LDB, C, LDC, Q, LDQ, Z, LDZ,
$ NOBSV, NIUOBS, NLBLCK, CTAU, TOL, IWORK,
$ DWORK, INFO )
*
IF ( INFO.NE.0 ) THEN
WRITE ( NOUT, FMT = 99998 ) INFO
ELSE
WRITE ( NOUT, FMT = 99994 ) NOBSV, NIUOBS
WRITE ( NOUT, FMT = 99985 )
WRITE ( NOUT, FMT = 99984 ) ( CTAU(I), I = 1,NLBLCK )
WRITE ( NOUT, FMT = 99997 )
DO 10 I = 1, N
WRITE ( NOUT, FMT = 99995 ) ( A(I,J), J = 1,N )
10 CONTINUE
WRITE ( NOUT, FMT = 99996 )
DO 20 I = 1, N
WRITE ( NOUT, FMT = 99995 ) ( E(I,J), J = 1,N )
20 CONTINUE
WRITE ( NOUT, FMT = 99993 )
DO 30 I = 1, N
WRITE ( NOUT, FMT = 99995 ) ( B(I,J), J = 1,M )
30 CONTINUE
WRITE ( NOUT, FMT = 99992 )
DO 40 I = 1, P
WRITE ( NOUT, FMT = 99995 ) ( C(I,J), J = 1,N )
40 CONTINUE
WRITE ( NOUT, FMT = 99991 )
DO 50 I = 1, N
WRITE ( NOUT, FMT = 99995 ) ( Q(I,J), J = 1,N )
50 CONTINUE
WRITE ( NOUT, FMT = 99990 )
DO 60 I = 1, N
WRITE ( NOUT, FMT = 99995 ) ( Z(I,J), J = 1,N )
60 CONTINUE
END IF
END IF
END IF
END IF
STOP
*
99999 FORMAT (' TG01ID EXAMPLE PROGRAM RESULTS',/1X)
99998 FORMAT (' INFO on exit from TG01ID = ',I2)
99997 FORMAT (/' The transformed state dynamics matrix Q''*A*Z is ')
99996 FORMAT (/' The transformed descriptor matrix Q''*E*Z is ')
99995 FORMAT (20(1X,F8.4))
99994 FORMAT (' Dimension of observable part =', I5/
$ ' Number of unobservable infinite eigenvalues =', I5)
99993 FORMAT (/' The transformed input/state matrix Q''*B is ')
99992 FORMAT (/' The transformed state/output matrix C*Z is ')
99991 FORMAT (/' The left transformation matrix Q is ')
99990 FORMAT (/' The right transformation matrix Z is ')
99989 FORMAT (/' L is out of range.',/' L = ',I5)
99988 FORMAT (/' N is out of range.',/' N = ',I5)
99987 FORMAT (/' M is out of range.',/' M = ',I5)
99986 FORMAT (/' P is out of range.',/' P = ',I5)
99985 FORMAT (/' The staircase form column dimensions are ' )
99984 FORMAT (10I5)
END
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