clartv3lapack
Applies a vector of complex plane rotations with real cosines to elements of the complex vectors x and y
Usage
- SUBROUTINE CLARTV(
-
N, X, INCX, Y, INCY, C, S, INCC )
- INTEGER
-
INCC, INCX, INCY, N
- REAL
-
C( * )
- COMPLEX
-
S( * ), X( * ), Y( * )
Purpose
CLARTV applies a vector of complex plane rotations with real cosines to elements of the complex vectors x and y. For i = 1,2,...,n
( x(i) ) := ( c(i) s(i) ) ( x(i) )
( y(i) ) ( -conjg(s(i)) c(i) ) ( y(i) )
Arguments
N (input) INTEGER
|
The number of plane rotations to be applied. |
|---|---|
X (input/output) COMPLEX array, dimension (1+(N-1)*INCX)
|
The vector x. |
INCX (input) INTEGER
|
The increment between elements of X. INCX > 0. |
Y (input/output) COMPLEX array, dimension (1+(N-1)*INCY)
|
The vector y. |
INCY (input) INTEGER
|
The increment between elements of Y. INCY > 0. |
C (input) REAL array, dimension (1+(N-1)*INCC)
|
The cosines of the plane rotations. |
S (input) COMPLEX 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. |