version 1.8, 2012/08/22 09:48:33
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version 1.14, 2017/06/17 11:06:50
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*> \brief \b ZLA_GBAMV |
*> \brief \b ZLA_GBAMV performs a matrix-vector operation to calculate error bounds. |
* |
* |
* =========== DOCUMENTATION =========== |
* =========== DOCUMENTATION =========== |
* |
* |
* Online html documentation available at |
* Online html documentation available at |
* http://www.netlib.org/lapack/explore-html/ |
* http://www.netlib.org/lapack/explore-html/ |
* |
* |
*> \htmlonly |
*> \htmlonly |
*> Download ZLA_GBAMV + dependencies |
*> Download ZLA_GBAMV + dependencies |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zla_gbamv.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zla_gbamv.f"> |
*> [TGZ]</a> |
*> [TGZ]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zla_gbamv.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zla_gbamv.f"> |
*> [ZIP]</a> |
*> [ZIP]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zla_gbamv.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zla_gbamv.f"> |
*> [TXT]</a> |
*> [TXT]</a> |
*> \endhtmlonly |
*> \endhtmlonly |
* |
* |
* Definition: |
* Definition: |
* =========== |
* =========== |
* |
* |
* SUBROUTINE ZLA_GBAMV( TRANS, M, N, KL, KU, ALPHA, AB, LDAB, X, |
* SUBROUTINE ZLA_GBAMV( TRANS, M, N, KL, KU, ALPHA, AB, LDAB, X, |
* INCX, BETA, Y, INCY ) |
* INCX, BETA, Y, INCY ) |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
* DOUBLE PRECISION ALPHA, BETA |
* DOUBLE PRECISION ALPHA, BETA |
* INTEGER INCX, INCY, LDAB, M, N, KL, KU, TRANS |
* INTEGER INCX, INCY, LDAB, M, N, KL, KU, TRANS |
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* COMPLEX*16 AB( LDAB, * ), X( * ) |
* COMPLEX*16 AB( LDAB, * ), X( * ) |
* DOUBLE PRECISION Y( * ) |
* DOUBLE PRECISION Y( * ) |
* .. |
* .. |
* |
* |
* |
* |
*> \par Purpose: |
*> \par Purpose: |
* ============= |
* ============= |
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* Authors: |
* Authors: |
* ======== |
* ======== |
* |
* |
*> \author Univ. of Tennessee |
*> \author Univ. of Tennessee |
*> \author Univ. of California Berkeley |
*> \author Univ. of California Berkeley |
*> \author Univ. of Colorado Denver |
*> \author Univ. of Colorado Denver |
*> \author NAG Ltd. |
*> \author NAG Ltd. |
* |
* |
*> \date November 2011 |
*> \date December 2016 |
* |
* |
*> \ingroup complex16GBcomputational |
*> \ingroup complex16GBcomputational |
* |
* |
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SUBROUTINE ZLA_GBAMV( TRANS, M, N, KL, KU, ALPHA, AB, LDAB, X, |
SUBROUTINE ZLA_GBAMV( TRANS, M, N, KL, KU, ALPHA, AB, LDAB, X, |
$ INCX, BETA, Y, INCY ) |
$ INCX, BETA, Y, INCY ) |
* |
* |
* -- LAPACK computational routine (version 3.4.0) -- |
* -- LAPACK computational routine (version 3.7.0) -- |
* -- LAPACK is a software package provided by Univ. of Tennessee, -- |
* -- LAPACK is a software package provided by Univ. of Tennessee, -- |
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- |
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- |
* November 2011 |
* December 2016 |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
DOUBLE PRECISION ALPHA, BETA |
DOUBLE PRECISION ALPHA, BETA |
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TEMP = CABS1( AB( KE-I+J, I ) ) |
TEMP = CABS1( AB( KE-I+J, I ) ) |
SYMB_ZERO = SYMB_ZERO .AND. |
SYMB_ZERO = SYMB_ZERO .AND. |
$ ( X( JX ) .EQ. ZERO .OR. TEMP .EQ. ZERO ) |
$ ( X( JX ) .EQ. ZERO .OR. TEMP .EQ. ZERO ) |
|
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Y( IY ) = Y( IY ) + ALPHA*CABS1( X( JX ) )*TEMP |
Y( IY ) = Y( IY ) + ALPHA*CABS1( X( JX ) )*TEMP |
JX = JX + INCX |
JX = JX + INCX |
END DO |
END DO |
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IY = IY + INCY |
IY = IY + INCY |
END DO |
END DO |
END IF |
END IF |
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END IF |
END IF |
* |
* |
RETURN |
RETURN |
* |
* |
* End of ZLA_GBAMV |
* End of ZLA_GBAMV |