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* MB03BD EXAMPLE PROGRAM TEXT
*
* .. Parameters ..
INTEGER NIN, NOUT
PARAMETER ( NIN = 5, NOUT = 6 )
INTEGER KMAX, NMAX
PARAMETER ( KMAX = 6, NMAX = 50 )
INTEGER LDA1, LDA2, LDQ1, LDQ2, LDWORK, LIWORK
PARAMETER ( LDA1 = NMAX, LDA2 = NMAX, LDQ1 = NMAX,
$ LDQ2 = NMAX,
$ LDWORK = KMAX + MAX( 2*NMAX, 8*KMAX ),
$ LIWORK = 2*KMAX + NMAX )
*
* .. Local Scalars ..
CHARACTER COMPQ, DEFL, JOB
INTEGER H, I, IHI, ILO, INFO, IWARN, J, K, L, N
*
* .. Local Arrays ..
INTEGER IWORK( LIWORK ), QIND( KMAX ), S( KMAX ),
$ SCAL( NMAX )
DOUBLE PRECISION A( LDA1, LDA2, KMAX ), ALPHAI( NMAX ),
$ ALPHAR( NMAX ), BETA( NMAX ), DWORK( LDWORK),
$ Q( LDQ1, LDQ2, KMAX )
* .. External Functions ..
LOGICAL LSAME
EXTERNAL LSAME
*
* .. External Subroutines ..
EXTERNAL MB03BD
*
* .. Intrinsic Functions ..
INTRINSIC MAX
*
* .. Executable Statements ..
*
WRITE( NOUT, FMT = 99999 )
* Skip the heading in the data file and read in the data.
READ( NIN, FMT = * )
READ( NIN, FMT = * ) JOB, DEFL, COMPQ, K, N, H, ILO, IHI
IF( N.LT.0 .OR. N.GT.NMAX ) THEN
WRITE( NOUT, FMT = 99998 ) N
ELSE
READ( NIN, FMT = * ) ( S( I ), I = 1, K )
READ( NIN, FMT = * ) ( ( ( A( I, J, L ), J = 1, N ),
$ I = 1, N ), L = 1, K )
IF( LSAME( COMPQ, 'U' ) )
$ READ( NIN, FMT = * ) ( ( ( Q( I, J, L ), J = 1, N ),
$ I = 1, N ), L = 1, K )
IF( LSAME( COMPQ, 'P' ) ) THEN
READ( NIN, FMT = * ) ( QIND( I ), I = 1, K )
DO 10 L = 1, K
IF( QIND( L ).GT.0 )
$ READ( NIN, FMT = * ) ( ( Q( I, J, QIND( L ) ),
$ J = 1, N ), I = 1, N )
10 CONTINUE
END IF
* Compute the eigenvalues and the transformed matrices, if
* required.
CALL MB03BD( JOB, DEFL, COMPQ, QIND, K, N, H, ILO, IHI, S, A,
$ LDA1, LDA2, Q, LDQ1, LDQ2, ALPHAR, ALPHAI, BETA,
$ SCAL, IWORK, LIWORK, DWORK, LDWORK, IWARN, INFO )
*
IF( INFO.NE.0 ) THEN
WRITE( NOUT, FMT = 99997 ) INFO
ELSE IF( IWARN.EQ.0 ) THEN
IF( LSAME( JOB, 'S' ) .OR. LSAME( JOB, 'T' ) ) THEN
WRITE( NOUT, FMT = 99996 )
DO 30 L = 1, K
WRITE( NOUT, FMT = 99988 ) L
DO 20 I = 1, N
WRITE( NOUT, FMT = 99995 ) ( A( I, J, L ), J = 1, N
$ )
20 CONTINUE
30 CONTINUE
END IF
IF( LSAME( COMPQ, 'U' ) .OR. LSAME( COMPQ, 'I' ) ) THEN
WRITE( NOUT, FMT = 99994 )
DO 50 L = 1, K
WRITE( NOUT, FMT = 99988 ) L
DO 40 I = 1, N
WRITE( NOUT, FMT = 99995 ) ( Q( I, J, L ), J = 1, N
$ )
40 CONTINUE
50 CONTINUE
ELSE IF( LSAME( COMPQ, 'P' ) ) THEN
WRITE( NOUT, FMT = 99994 )
DO 70 L = 1, K
IF( QIND( L ).GT.0 ) THEN
WRITE( NOUT, FMT = 99988 ) QIND( L )
DO 60 I = 1, N
WRITE( NOUT, FMT = 99995 )
$ ( Q( I, J, QIND( L ) ), J = 1, N )
60 CONTINUE
END IF
70 CONTINUE
END IF
WRITE( NOUT, FMT = 99993 )
WRITE( NOUT, FMT = 99995 ) ( ALPHAR( I ), I = 1, N )
WRITE( NOUT, FMT = 99992 )
WRITE( NOUT, FMT = 99995 ) ( ALPHAI( I ), I = 1, N )
WRITE( NOUT, FMT = 99991 )
WRITE( NOUT, FMT = 99995 ) ( BETA( I ), I = 1, N )
WRITE( NOUT, FMT = 99990 )
WRITE( NOUT, FMT = 99989 ) ( SCAL( I ), I = 1, N )
ELSE
WRITE( NOUT, FMT = 99987 ) IWARN
END IF
END IF
STOP
*
99999 FORMAT( 'MB03BD EXAMPLE PROGRAM RESULTS', 1X )
99998 FORMAT( 'N is out of range.', /, 'N = ', I5 )
99997 FORMAT( 'INFO on exit from MB03BD = ', I2 )
99996 FORMAT( 'The matrix A on exit is ' )
99995 FORMAT( 50( 1X, F8.4 ) )
99994 FORMAT( 'The matrix Q on exit is ' )
99993 FORMAT( 'The vector ALPHAR is ' )
99992 FORMAT( 'The vector ALPHAI is ' )
99991 FORMAT( 'The vector BETA is ' )
99990 FORMAT( 'The vector SCAL is ' )
99989 FORMAT( 50( 1X, I8 ) )
99988 FORMAT( 'The factor ', I2, ' is ' )
99987 FORMAT( 'IWARN on exit from MB03BD = ', I2 )
END
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