version 1.2, 2010/04/21 13:45:19
|
version 1.10, 2012/08/22 09:48:19
|
Line 1
|
Line 1
|
|
*> \brief \b DLARTV |
|
* |
|
* =========== DOCUMENTATION =========== |
|
* |
|
* Online html documentation available at |
|
* http://www.netlib.org/lapack/explore-html/ |
|
* |
|
*> \htmlonly |
|
*> Download DLARTV + dependencies |
|
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlartv.f"> |
|
*> [TGZ]</a> |
|
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlartv.f"> |
|
*> [ZIP]</a> |
|
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlartv.f"> |
|
*> [TXT]</a> |
|
*> \endhtmlonly |
|
* |
|
* Definition: |
|
* =========== |
|
* |
|
* SUBROUTINE DLARTV( N, X, INCX, Y, INCY, C, S, INCC ) |
|
* |
|
* .. Scalar Arguments .. |
|
* INTEGER INCC, INCX, INCY, N |
|
* .. |
|
* .. Array Arguments .. |
|
* DOUBLE PRECISION C( * ), S( * ), X( * ), Y( * ) |
|
* .. |
|
* |
|
* |
|
*> \par Purpose: |
|
* ============= |
|
*> |
|
*> \verbatim |
|
*> |
|
*> DLARTV applies a vector of real plane rotations to elements of the |
|
*> real vectors x and y. For i = 1,2,...,n |
|
*> |
|
*> ( x(i) ) := ( c(i) s(i) ) ( x(i) ) |
|
*> ( y(i) ) ( -s(i) c(i) ) ( y(i) ) |
|
*> \endverbatim |
|
* |
|
* Arguments: |
|
* ========== |
|
* |
|
*> \param[in] N |
|
*> \verbatim |
|
*> N is INTEGER |
|
*> The number of plane rotations to be applied. |
|
*> \endverbatim |
|
*> |
|
*> \param[in,out] X |
|
*> \verbatim |
|
*> X is DOUBLE PRECISION array, |
|
*> dimension (1+(N-1)*INCX) |
|
*> The vector x. |
|
*> \endverbatim |
|
*> |
|
*> \param[in] INCX |
|
*> \verbatim |
|
*> INCX is INTEGER |
|
*> The increment between elements of X. INCX > 0. |
|
*> \endverbatim |
|
*> |
|
*> \param[in,out] Y |
|
*> \verbatim |
|
*> Y is DOUBLE PRECISION array, |
|
*> dimension (1+(N-1)*INCY) |
|
*> The vector y. |
|
*> \endverbatim |
|
*> |
|
*> \param[in] INCY |
|
*> \verbatim |
|
*> INCY is INTEGER |
|
*> The increment between elements of Y. INCY > 0. |
|
*> \endverbatim |
|
*> |
|
*> \param[in] C |
|
*> \verbatim |
|
*> C is DOUBLE PRECISION array, dimension (1+(N-1)*INCC) |
|
*> The cosines of the plane rotations. |
|
*> \endverbatim |
|
*> |
|
*> \param[in] S |
|
*> \verbatim |
|
*> S is DOUBLE PRECISION array, dimension (1+(N-1)*INCC) |
|
*> The sines of the plane rotations. |
|
*> \endverbatim |
|
*> |
|
*> \param[in] INCC |
|
*> \verbatim |
|
*> INCC is INTEGER |
|
*> The increment between elements of C and S. INCC > 0. |
|
*> \endverbatim |
|
* |
|
* Authors: |
|
* ======== |
|
* |
|
*> \author Univ. of Tennessee |
|
*> \author Univ. of California Berkeley |
|
*> \author Univ. of Colorado Denver |
|
*> \author NAG Ltd. |
|
* |
|
*> \date November 2011 |
|
* |
|
*> \ingroup doubleOTHERauxiliary |
|
* |
|
* ===================================================================== |
SUBROUTINE DLARTV( N, X, INCX, Y, INCY, C, S, INCC ) |
SUBROUTINE DLARTV( N, X, INCX, Y, INCY, C, S, INCC ) |
* |
* |
* -- LAPACK auxiliary routine (version 3.2) -- |
* -- LAPACK auxiliary routine (version 3.4.0) -- |
* -- 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 2006 |
* November 2011 |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
INTEGER INCC, INCX, INCY, N |
INTEGER INCC, INCX, INCY, N |
Line 12
|
Line 120
|
DOUBLE PRECISION C( * ), S( * ), X( * ), Y( * ) |
DOUBLE PRECISION C( * ), S( * ), X( * ), Y( * ) |
* .. |
* .. |
* |
* |
* Purpose |
|
* ======= |
|
* |
|
* DLARTV applies a vector of real plane rotations to elements of the |
|
* real vectors x and y. For i = 1,2,...,n |
|
* |
|
* ( x(i) ) := ( c(i) s(i) ) ( x(i) ) |
|
* ( y(i) ) ( -s(i) c(i) ) ( y(i) ) |
|
* |
|
* Arguments |
|
* ========= |
|
* |
|
* N (input) INTEGER |
|
* The number of plane rotations to be applied. |
|
* |
|
* X (input/output) DOUBLE PRECISION array, |
|
* dimension (1+(N-1)*INCX) |
|
* The vector x. |
|
* |
|
* INCX (input) INTEGER |
|
* The increment between elements of X. INCX > 0. |
|
* |
|
* Y (input/output) DOUBLE PRECISION array, |
|
* dimension (1+(N-1)*INCY) |
|
* The vector y. |
|
* |
|
* INCY (input) INTEGER |
|
* The increment between elements of Y. INCY > 0. |
|
* |
|
* C (input) DOUBLE PRECISION array, dimension (1+(N-1)*INCC) |
|
* The cosines of the plane rotations. |
|
* |
|
* S (input) DOUBLE PRECISION array, dimension (1+(N-1)*INCC) |
|
* The sines of the plane rotations. |
|
* |
|
* INCC (input) INTEGER |
|
* The increment between elements of C and S. INCC > 0. |
|
* |
|
* ===================================================================== |
* ===================================================================== |
* |
* |
* .. Local Scalars .. |
* .. Local Scalars .. |