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* SB02RD EXAMPLE PROGRAM TEXT.
*
* .. Parameters ..
INTEGER NIN, NOUT
PARAMETER ( NIN = 5, NOUT = 6 )
INTEGER NMAX
PARAMETER ( NMAX = 20 )
INTEGER LDA, LDG, LDQ, LDS, LDT, LDV, LDX
PARAMETER ( LDA = NMAX, LDG = NMAX, LDQ = NMAX,
$ LDS = 2*NMAX, LDT = NMAX, LDV = NMAX,
$ LDX = NMAX )
INTEGER LIWORK
PARAMETER ( LIWORK = MAX( 2*NMAX, NMAX*NMAX ) )
INTEGER LDWORK
PARAMETER ( LDWORK = 5 + 4*NMAX*NMAX + 8*NMAX )
* .. Local Scalars ..
DOUBLE PRECISION FERR, RCOND, SEP
INTEGER I, INFO, J, N
CHARACTER DICO, FACT, HINV, JOB, LYAPUN, SCAL, SORT, TRANA,
$ UPLO
* .. Local Arrays ..
DOUBLE PRECISION A(LDA,NMAX), DWORK(LDWORK), G(LDG,NMAX),
$ Q(LDQ,NMAX), S(LDS,2*NMAX), T(LDT,NMAX),
$ V(LDV,NMAX), WI(2*NMAX), WR(2*NMAX), X(LDX,NMAX)
INTEGER IWORK(LIWORK)
LOGICAL BWORK(LIWORK)
* .. External Functions ..
LOGICAL LSAME
EXTERNAL LSAME
* .. External Subroutines ..
EXTERNAL SB02RD
* .. 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, JOB, DICO, HINV, TRANA, UPLO, SCAL, SORT,
$ FACT, LYAPUN
IF ( N.LT.0 .OR. N.GT.NMAX ) THEN
WRITE ( NOUT, FMT = 99995 ) N
ELSE
IF ( LSAME( JOB, 'X' ) .OR. LSAME( JOB, 'A' ) .OR.
$ LSAME( FACT, 'N' ) .OR. LSAME( LYAPUN, 'O' ) )
$ READ ( NIN, FMT = * ) ( ( A(I,J), J = 1,N ), I = 1,N )
IF ( .NOT.LSAME( JOB, 'X' ) .AND. LSAME( FACT, 'F' ) ) THEN
READ ( NIN, FMT = * ) ( ( T(I,J), J = 1,N ), I = 1,N )
READ ( NIN, FMT = * ) ( ( V(I,J), J = 1,N ), I = 1,N )
END IF
READ ( NIN, FMT = * ) ( ( Q(I,J), J = 1,N ), I = 1,N )
READ ( NIN, FMT = * ) ( ( G(I,J), J = 1,N ), I = 1,N )
IF ( LSAME( JOB, 'C' ) .OR. LSAME( JOB, 'E' ) )
$ READ ( NIN, FMT = * ) ( ( X(I,J), J = 1,N ), I = 1,N )
* Find the solution matrix X.
CALL SB02RD( JOB, DICO, HINV, TRANA, UPLO, SCAL, SORT, FACT,
$ LYAPUN, N, A, LDA, T, LDT, V, LDV, G, LDG, Q, LDQ,
$ X, LDX, SEP, RCOND, FERR, WR, WI, S, LDS, IWORK,
$ DWORK, LDWORK, BWORK, INFO )
*
IF ( INFO.NE.0 ) THEN
WRITE ( NOUT, FMT = 99998 ) INFO
END IF
IF ( INFO.EQ.0 .OR. INFO.EQ.7 ) THEN
IF ( LSAME( JOB, 'X' ) .OR. LSAME( JOB, 'A' ) ) THEN
WRITE ( NOUT, FMT = 99997 )
DO 20 I = 1, N
WRITE ( NOUT, FMT = 99996 ) ( X(I,J), J = 1,N )
20 CONTINUE
END IF
IF ( LSAME( JOB, 'C' ) .OR. LSAME( JOB, 'A' ) ) THEN
WRITE ( NOUT, FMT = 99994 ) SEP
WRITE ( NOUT, FMT = 99993 ) RCOND
END IF
IF ( LSAME( JOB, 'E' ) .OR. LSAME( JOB, 'A' ) )
$ WRITE ( NOUT, FMT = 99992 ) FERR
END IF
END IF
STOP
*
99999 FORMAT (' SB02RD EXAMPLE PROGRAM RESULTS',/1X)
99998 FORMAT (' INFO on exit from SB02RD = ',I2)
99997 FORMAT (' The solution matrix X is ')
99996 FORMAT (20(1X,F8.4))
99995 FORMAT (/' N is out of range.',/' N = ',I5)
99994 FORMAT (/' Estimated separation = ',F8.4)
99993 FORMAT (/' Estimated reciprocal condition number = ',F8.4)
99992 FORMAT (/' Estimated error bound = ',F8.4)
END
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