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* MB03BZ 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, LZWORK
PARAMETER ( LDA1 = NMAX, LDA2 = NMAX, LDQ1 = NMAX,
$ LDQ2 = NMAX, LDWORK = NMAX, LZWORK = NMAX )
*
* .. Local Scalars ..
CHARACTER COMPQ, JOB
INTEGER I, IHI, ILO, INFO, J, K, L, N
*
* .. Local Arrays ..
COMPLEX*16 A( LDA1, LDA2, KMAX ), ALPHA( NMAX ),
$ BETA( NMAX ), Q( LDQ1, LDQ2, KMAX ),
$ ZWORK( LZWORK )
DOUBLE PRECISION DWORK( LDWORK)
INTEGER S( KMAX ), SCAL( NMAX )
* .. External Functions ..
LOGICAL LSAME
EXTERNAL LSAME
*
* .. External Subroutines ..
EXTERNAL MB03BZ
*
* .. 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, COMPQ, K, N, 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, 'V' ) )
$ READ( NIN, FMT = * ) ( ( ( Q( I, J, L ), J = 1, N ),
$ I = 1, N ), L = 1, K )
* Compute the eigenvalues and the transformed matrices, if
* required.
CALL MB03BZ( JOB, COMPQ, K, N, ILO, IHI, S, A, LDA1, LDA2,
$ Q, LDQ1, LDQ2, ALPHA, BETA, SCAL, DWORK, LDWORK,
$ ZWORK, LZWORK, INFO )
*
IF( INFO.NE.0 ) THEN
WRITE( NOUT, FMT = 99997 ) INFO
ELSE
IF( LSAME( JOB, 'S' ) ) THEN
WRITE( NOUT, FMT = 99996 )
DO 20 L = 1, K
WRITE( NOUT, FMT = 99995 ) L
DO 10 I = 1, N
WRITE( NOUT, FMT = 99994 ) ( A( I, J, L ), J = 1, N
$ )
10 CONTINUE
20 CONTINUE
END IF
IF( .NOT.LSAME( COMPQ, 'N' ) ) THEN
WRITE( NOUT, FMT = 99993 )
DO 40 L = 1, K
WRITE( NOUT, FMT = 99995 ) L
DO 30 I = 1, N
WRITE( NOUT, FMT = 99994 ) ( Q( I, J, L ), J = 1, N
$ )
30 CONTINUE
40 CONTINUE
END IF
WRITE( NOUT, FMT = 99992 )
WRITE( NOUT, FMT = 99994 ) ( ALPHA( I ), I = 1, N )
WRITE( NOUT, FMT = 99991 )
WRITE( NOUT, FMT = 99994 ) ( BETA( I ), I = 1, N )
WRITE( NOUT, FMT = 99990 )
WRITE( NOUT, FMT = 99989 ) ( SCAL( I ), I = 1, N )
END IF
END IF
STOP
*
99999 FORMAT( 'MB03BZ EXAMPLE PROGRAM RESULTS', 1X )
99998 FORMAT( 'N is out of range.', /, 'N = ', I5 )
99997 FORMAT( 'INFO on exit from MB03BZ = ', I2 )
99996 FORMAT(/'The matrix A on exit is ' )
99995 FORMAT( 'The factor ', I2, ' is ' )
99994 FORMAT( 50( 1X, F9.4, SP, F9.4, S, 'i ') )
99993 FORMAT(/'The matrix Q on exit is ' )
99992 FORMAT(/'The vector ALPHA is ' )
99991 FORMAT( 'The vector BETA is ' )
99990 FORMAT( 'The vector SCAL is ' )
99989 FORMAT( 50( 1X, I8 ) )
END
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