1CLACRT(1) LAPACK auxiliary routine (version 3.1) CLACRT(1)
2
3
4
6 CLACRT - the operation ( c s )( x ) ==> ( x ) ( -s c )( y ) ( y )
7 where c and s are complex and the vectors x and y are complex
8
10 SUBROUTINE CLACRT( N, CX, INCX, CY, INCY, C, S )
11
12 INTEGER INCX, INCY, N
13
14 COMPLEX C, S
15
16 COMPLEX CX( * ), CY( * )
17
19 CLACRT performs the operation
20
21
23 N (input) INTEGER
24 The number of elements in the vectors CX and CY.
25
26 CX (input/output) COMPLEX array, dimension (N)
27 On input, the vector x. On output, CX is overwritten with c*x
28 + s*y.
29
30 INCX (input) INTEGER
31 The increment between successive values of CX. INCX <> 0.
32
33 CY (input/output) COMPLEX array, dimension (N)
34 On input, the vector y. On output, CY is overwritten with -s*x
35 + c*y.
36
37 INCY (input) INTEGER
38 The increment between successive values of CY. INCY <> 0.
39
40 C (input) COMPLEX
41 S (input) COMPLEX C and S define the matrix [ C S ].
42 [ -S C ]
43
44
45
46 LAPACK auxiliary routine (versionNo3v.e1m)ber 2006 CLACRT(1)