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116 lines
2.8 KiB
116 lines
2.8 KiB
*> \brief \b CLACGV |
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* |
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* =========== DOCUMENTATION =========== |
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* |
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* Online html documentation available at |
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* http://www.netlib.org/lapack/explore-html/ |
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* |
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*> \htmlonly |
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*> Download CLACGV + dependencies |
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*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/clacgv.f"> |
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*> [TGZ]</a> |
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*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/clacgv.f"> |
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*> [ZIP]</a> |
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*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/clacgv.f"> |
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*> [TXT]</a> |
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*> \endhtmlonly |
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* |
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* Definition: |
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* =========== |
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* |
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* SUBROUTINE CLACGV( N, X, INCX ) |
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* |
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* .. Scalar Arguments .. |
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* INTEGER INCX, N |
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* .. |
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* .. Array Arguments .. |
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* COMPLEX X( * ) |
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* .. |
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* |
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* |
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*> \par Purpose: |
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* ============= |
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*> |
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*> \verbatim |
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*> |
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*> CLACGV conjugates a complex vector of length N. |
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*> \endverbatim |
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* |
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* Arguments: |
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* ========== |
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* |
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*> \param[in] N |
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*> \verbatim |
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*> N is INTEGER |
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*> The length of the vector X. N >= 0. |
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*> \endverbatim |
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*> |
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*> \param[in,out] X |
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*> \verbatim |
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*> X is COMPLEX array, dimension |
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*> (1+(N-1)*abs(INCX)) |
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*> On entry, the vector of length N to be conjugated. |
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*> On exit, X is overwritten with conjg(X). |
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*> \endverbatim |
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*> |
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*> \param[in] INCX |
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*> \verbatim |
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*> INCX is INTEGER |
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*> The spacing between successive elements of X. |
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*> \endverbatim |
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* |
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* Authors: |
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* ======== |
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* |
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*> \author Univ. of Tennessee |
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*> \author Univ. of California Berkeley |
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*> \author Univ. of Colorado Denver |
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*> \author NAG Ltd. |
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* |
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*> \date November 2011 |
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* |
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*> \ingroup complexOTHERauxiliary |
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* |
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* ===================================================================== |
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SUBROUTINE CLACGV( N, X, INCX ) |
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* |
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* -- LAPACK auxiliary routine (version 3.4.0) -- |
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* -- LAPACK is a software package provided by Univ. of Tennessee, -- |
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* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- |
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* November 2011 |
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* |
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* .. Scalar Arguments .. |
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INTEGER INCX, N |
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* .. |
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* .. Array Arguments .. |
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COMPLEX X( * ) |
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* .. |
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* |
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* ===================================================================== |
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* |
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* .. Local Scalars .. |
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INTEGER I, IOFF |
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* .. |
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* .. Intrinsic Functions .. |
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INTRINSIC CONJG |
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* .. |
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* .. Executable Statements .. |
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* |
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IF( INCX.EQ.1 ) THEN |
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DO 10 I = 1, N |
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X( I ) = CONJG( X( I ) ) |
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10 CONTINUE |
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ELSE |
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IOFF = 1 |
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IF( INCX.LT.0 ) |
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$ IOFF = 1 - ( N-1 )*INCX |
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DO 20 I = 1, N |
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X( IOFF ) = CONJG( X( IOFF ) ) |
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IOFF = IOFF + INCX |
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20 CONTINUE |
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END IF |
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RETURN |
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* |
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* End of CLACGV |
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* |
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END
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