Annotation of rpl/lapack/lapack/zlacgv.f, revision 1.18
1.11 bertrand 1: *> \brief \b ZLACGV conjugates a complex vector.
1.8 bertrand 2: *
3: * =========== DOCUMENTATION ===========
4: *
1.15 bertrand 5: * Online html documentation available at
6: * http://www.netlib.org/lapack/explore-html/
1.8 bertrand 7: *
8: *> \htmlonly
1.15 bertrand 9: *> Download ZLACGV + dependencies
10: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zlacgv.f">
11: *> [TGZ]</a>
12: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zlacgv.f">
13: *> [ZIP]</a>
14: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zlacgv.f">
1.8 bertrand 15: *> [TXT]</a>
1.15 bertrand 16: *> \endhtmlonly
1.8 bertrand 17: *
18: * Definition:
19: * ===========
20: *
21: * SUBROUTINE ZLACGV( N, X, INCX )
1.15 bertrand 22: *
1.8 bertrand 23: * .. Scalar Arguments ..
24: * INTEGER INCX, N
25: * ..
26: * .. Array Arguments ..
27: * COMPLEX*16 X( * )
28: * ..
1.15 bertrand 29: *
1.8 bertrand 30: *
31: *> \par Purpose:
32: * =============
33: *>
34: *> \verbatim
35: *>
36: *> ZLACGV conjugates a complex vector of length N.
37: *> \endverbatim
38: *
39: * Arguments:
40: * ==========
41: *
42: *> \param[in] N
43: *> \verbatim
44: *> N is INTEGER
45: *> The length of the vector X. N >= 0.
46: *> \endverbatim
47: *>
48: *> \param[in,out] X
49: *> \verbatim
50: *> X is COMPLEX*16 array, dimension
51: *> (1+(N-1)*abs(INCX))
52: *> On entry, the vector of length N to be conjugated.
53: *> On exit, X is overwritten with conjg(X).
54: *> \endverbatim
55: *>
56: *> \param[in] INCX
57: *> \verbatim
58: *> INCX is INTEGER
59: *> The spacing between successive elements of X.
60: *> \endverbatim
61: *
62: * Authors:
63: * ========
64: *
1.15 bertrand 65: *> \author Univ. of Tennessee
66: *> \author Univ. of California Berkeley
67: *> \author Univ. of Colorado Denver
68: *> \author NAG Ltd.
1.8 bertrand 69: *
70: *> \ingroup complex16OTHERauxiliary
71: *
72: * =====================================================================
1.1 bertrand 73: SUBROUTINE ZLACGV( N, X, INCX )
74: *
1.18 ! bertrand 75: * -- LAPACK auxiliary routine --
1.1 bertrand 76: * -- LAPACK is a software package provided by Univ. of Tennessee, --
77: * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
78: *
79: * .. Scalar Arguments ..
80: INTEGER INCX, N
81: * ..
82: * .. Array Arguments ..
83: COMPLEX*16 X( * )
84: * ..
85: *
86: * =====================================================================
87: *
88: * .. Local Scalars ..
89: INTEGER I, IOFF
90: * ..
91: * .. Intrinsic Functions ..
92: INTRINSIC DCONJG
93: * ..
94: * .. Executable Statements ..
95: *
96: IF( INCX.EQ.1 ) THEN
97: DO 10 I = 1, N
98: X( I ) = DCONJG( X( I ) )
99: 10 CONTINUE
100: ELSE
101: IOFF = 1
102: IF( INCX.LT.0 )
103: $ IOFF = 1 - ( N-1 )*INCX
104: DO 20 I = 1, N
105: X( IOFF ) = DCONJG( X( IOFF ) )
106: IOFF = IOFF + INCX
107: 20 CONTINUE
108: END IF
109: RETURN
110: *
111: * End of ZLACGV
112: *
113: END
CVSweb interface <joel.bertrand@systella.fr>